Seat Leon — MOT statistics 2024
The Seat Leon failed 23.33% of 188,729 first MOT attempts in 2024 ("first-time", excluding retests). Adjusted for the age of the fleet, its initial-failure ratio is 91.9 (100 = expected for its age profile). This car fails its MOT about 8% less often than expected for its age.
Age-adjusted peer: Volkswagen Passat (index 92.4) — the two published results are 0.5 index points apart.
Seat Leon common problems: what actually fails the MOT
Lamps, reflectors and electrical equipment are well below the reference at 10.1 per 100 tests, against 13.4 per 100 tests across UK vehicles of the same ages.
higher bar = fails more oftenrate per 100 tests
family vs national — matched to UK vehicles of the same ages — top component groups, per 100 tests. Legend: This family · National avg. Combined labels: family / national average. A gap here reflects how these vehicles are driven, used and maintained as well as how they were built — an MOT defect is a test outcome, not a breakdown.
Component-group comparison table
Each ratio carries a 95% interval. With 6 groups compared here, roughly one apparent difference in twenty is chance alone.
| Group | This family | Cases behind it | UK, same ages | Family / national |
|---|---|---|---|---|
| Suspension | 12.5 | 127,452 | 11.6 | 1.08×1.07–1.08 |
| Lamps & electrical | 10.1 | 103,458 | 13.4 | 0.76×0.75–0.76 |
| Tyres | 9.2 | 94,268 | 8.4 | 1.09×1.09–1.10 |
| Brakes | 8.7 | 88,853 | 9.2 | 0.94×0.94–0.95 |
| Visibility | 6.4 | 65,447 | 7.1 | 0.91×0.90–0.91 |
| Body & structure | 5.3 | 54,551 | 3.9 | 1.37×1.36–1.39 |
| What failed | per 100 tests (this family) | per 100 tests (UK average) | ratio family / UK | What to check |
|---|---|---|---|---|
| Shock absorber leaking or failedA shock absorber damaged to the extent that it does not function or showing signs of severe leakage | 2.45 | 0.98 | 2.50× | Look behind the wheels for oily, wet shock absorbers, and push down hard on each corner: it should rise once and settle. |
| Driveshaft boot perished (minor)A transmission shaft constant velocity joint boot severely deteriorated | 2.09 | 1.48 | 1.41× | Look behind the front wheels for cracked rubber boots; once a boot splits, the joint wears out quickly. |
| Tyre tread below the legal limitTyre tread depth not in accordance with the requirements | 4.02 | 3.59 | 1.12× | Check the tread across every tyre with a gauge; wear on one edge points to a tracking fault. |
| Suspension joint cover split or missingA suspension joint dust cover missing or no longer prevents the ingress of dirt etc | 2.21 | 1.78 | 1.24× | Ask whether the ball joint was replaced along with its cover: a joint that ran unprotected wears quickly and knocks over bumps. |
| Brake pads or shoes dangerously thina brake lining or pad worn below 1.5mm | 2.40 | 2.15 | 1.12× | Look through the wheels at the pads and discs, listen for grinding, and ask when they were last replaced. |
| Broken or weakened suspension springA spring or spring component fractured or seriously weakened | 3.06 | 2.86 | 1.07× | Look behind each wheel at the coil springs for a snapped end, and check the car sits level from side to side. |
| Tyre badly cut or damagedA tyre seriously damaged | 2.49 | 2.54 | 0.98× | Check both sidewalls of every tyre, including the inner side, for cuts, bulges and tears. |
| Windscreen or window damaged (minor)Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view | 1.98 | 2.36 | 0.84× | Look for chips and cracks across the windscreen: chips spread, and larger damage in front of the driver fails. |
| Headlight aimed wronglyThe aim of a headlamp is not within limits laid down in the requirements | 2.14 | 2.57 | 0.83× | Shine the dipped beams at a wall after dark: both should sit at the same height. |
| Worn suspension bush or jointA suspension pin, bush or joint excessively worn | 1.91 | 4.87 | 0.39× | Listen for knocks over speed bumps, feel for the car wandering under braking, and ask which part was replaced. |
Named defects ranked by how much more often they appear than the national average — not by raw rate.
Seat Leon MOT advisories: what gets flagged
Tyres are highest at 43.2 per 100 tests; Emissions & leaks are lowest at 3.2 per 100 tests — the gap is 40.0 per 100 tests.
higher bar = flagged more oftenadvisory items per 100 initial tests
Advisory rates table
| Group | Advisories per 100 |
|---|---|
| Tyres | 43.2 |
| Suspension | 32.4 |
| Brakes | 30.3 |
| Non-component advisories | 7.7 |
| Body & structure | 3.3 |
| Emissions & leaks | 3.2 |
Advisories are wear the tester noted but didn't fail — what will need money soon.
Tyres, brakes and suspension: Seat Leon against cars of the same age
| Age | Part | Seat Leon | Same age, petrol and diesel | Difference |
|---|---|---|---|---|
| 3 years | Tyres | 5.13 | 4.17 | 0.96 |
| 3 years | Brakes | 0.95 | 1.77 | -0.82 |
| 3 years | Suspension | 1.52 | 0.63 | 0.89 |
| 4 years | Tyres | 5.38 | 4.54 | 0.84 |
| 4 years | Brakes | 1.61 | 2.43 | -0.82 |
| 4 years | Suspension | 2.45 | 1.21 | 1.24 |
| 5 years | Tyres | 5.91 | 5.06 | 0.85 |
| 5 years | Brakes | 2.5 | 3.09 | -0.59 |
| 5 years | Suspension | 3.21 | 2.19 | 1.02 |
| 6 years | Tyres | 6.25 | 5.54 | 0.71 |
| 6 years | Brakes | 3.17 | 3.81 | -0.64 |
| 6 years | Suspension | 3.37 | 3.72 | -0.35 |
| 7 years | Tyres | 6.48 | 5.95 | 0.53 |
| 7 years | Brakes | 4 | 4.55 | -0.55 |
| 7 years | Suspension | 4.18 | 5.68 | -1.50 |
| 8 years | Tyres | 6.67 | 6.31 | 0.36 |
| 8 years | Brakes | 4.73 | 5.38 | -0.65 |
| 8 years | Suspension | 5.49 | 7.78 | -2.29 |
Failing items per 100 initial tests, 2019-2024. The comparison group is every petrol or diesel car tested at the same age, so weight and drivetrain show up rather than fleet age.
If a car like this fails, does it fail again?
A failure rate does not say whether a failure is a one-off or the start of something. This follows the same vehicles into their next ordinary MOT a year later — retests after a repair are excluded, because they follow a failure by definition. 2019-2024.
| After this year's test | Fails next year | Vehicles followed |
|---|---|---|
| It failed | 31.5% | 47,874 |
| It passed | 20.7% | 578,386 |
A failed test raises next year's chance of failing again by 10.8 percentage points. The failure most likely to come back is body, chassis, structure — 36.6% of those vehicles fail again next year. Some of this is the vehicle and some is the owner: a car that was let go once tends to be let go again. One caveat: a car that fails may be sold or scrapped rather than tested again, so these figures describe the vehicles that came back.
Adjusted for how much these are actually driven
The headline index adjusts for the fleet's age. Wear, though, follows mileage: a three-year-old taxi and a three-year-old garage queen sit in the same age band. These two rows compare every car with vehicles of the same age, and then with vehicles of the same age and the same annual mileage, 2019-2024, on 1,015,845 tests. Both stand on the six-year corpus so they are measured on identical data — compare them with each other, not with the headline index above, which is measured on 2024 alone.
| Standardised for | Index | Reading |
|---|---|---|
| Age only | 91.9 | fails less often than expected |
| Age and annual mileage | 86.5 | fails less often than vehicles driven as much |
| Share doing under 3,000 miles a year | 1.8% | a normal spread of use |
Mileage matters here: matching on how much these are driven moves the figure by 5.4 points — this fleet works harder than the vehicles it is measured against, so the age-only view penalises it — but it does not change which side of normal the car sits on. One limit to keep in mind: mileage is partly a result of how often a car breaks down — one that spends weeks in the workshop covers fewer miles — so the mileage-matched figure can understate a real weakness. Tests with no usable odometer reading are left out of it.
How the Seat Leon compares with cars of its own age and size
Not against the whole fleet — against cars of the same size class tested at the same age, 2019-2024.
| Age | Seat Leon | Same class, same age | Difference | Tests |
|---|---|---|---|---|
| 3 years | 12.73% | 11.27% | +1.45 pp | 108,525 |
| 4 years | 13.82% | 14.25% | -0.43 pp | 108,025 |
| 5 years | 15.93% | 17.44% | -1.51 pp | 112,953 |
| 6 years | 17.58% | 20.8% | -3.23 pp | 105,376 |
| 7 years | 19.61% | 24.39% | -4.78 pp | 93,900 |
| 8 years | 21.75% | 28.23% | -6.48 pp | 82,749 |
| 9 years | 24.9% | 32.11% | -7.22 pp | 73,368 |
| 10 years | 28.9% | 35.67% | -6.77 pp | 61,566 |
| 11 years | 33.96% | 38.7% | -4.74 pp | 49,563 |
| 12 years | 37.98% | 41.28% | -3.3 pp | 45,345 |
| 13 years | 40.69% | 43.31% | -2.63 pp | 41,245 |
| 14 years | 41.75% | 45.06% | -3.32 pp | 35,655 |
| 15 years | 42.74% | 46.34% | -3.61 pp | 29,770 |
| 16 years | 43.77% | 47.37% | -3.61 pp | 24,295 |
| 17 years | 44.53% | 47.82% | -3.28 pp | 17,663 |
| 18 years | 43.59% | 48.03% | -4.43 pp | 11,612 |
| 19 years | 42.05% | 47.77% | -5.73 pp | 7,211 |
| 20 years | 41.51% | 47.4% | -5.89 pp | 4,421 |
Raw first-time failure rates within each age, so fleet age cannot flatter either side. A positive difference means this model fails more often than its own class at that age.
How does the Seat Leon perform as it gets older?
The Leon at age 10 is well below the reference at 22.8%, against 30.1% for all vehicles of the same age.
higher = larger sharecompare shares in percentage points
Chart axes: car age, years · failure-rate scale 0–47%.
Takeaway: a 10-year-old Leon has roughly a 23% chance of failing its MOT.
Data table
| Age | Seat Leon | All vehicles | Gap |
|---|---|---|---|
| 3 | 11.9% | 12.4% | -0.5 pp |
| 4 | 13.6% | 13.1% | +0.5 pp |
| 5 | 17.8% | 15.1% | +2.6 pp |
| 6 | 18.6% | 17.5% | +1.1 pp |
| 7 | 19.5% | 20.2% | -0.7 pp |
| 8 | 18.9% | 23.3% | -4.5 pp |
| 9 | 21.1% | 26.5% | -5.5 pp |
| 10 | 22.8% | 30.1% | -7.3 pp |
| 11 | 26.7% | 33.2% | -6.5 pp |
| 12 | 33.0% | 35.7% | -2.7 pp |
| 13 | 36.5% | 38.2% | -1.6 pp |
| 14 | 38.9% | 40.4% | -1.5 pp |
| 15 | 38.8% | 41.6% | -2.8 pp |
| 16 | 41.7% | 43.1% | -1.4 pp |
| 17 | 42.0% | 43.1% | -1.1 pp |
| 18 | 43.9% | 43.9% | +0.1 pp |
| 19 | 40.1% | 43.5% | -3.4 pp |
| 20 | 38.9% | 41.0% | -2.1 pp |
Is a Seat Leon ULEZ compliant?
The share of classifiable 2024 Seat Leon MOT tests likely ULEZ compliant by first-registration date is 71.4%.
Based on 188,639 classifiable initial MOT tests. This describes the tested fleet, not a specific car. MOT data do not record Euro class, so likely compliance is inferred from fuel and first-registration date. For the only authoritative answer, check the registration with TfL's official ULEZ checker.
higher = larger share likely compliantinferred from fuel and first-registration date; not a recorded Euro class
| Vehicle age at test | Likely ULEZ-compliant share | Tests |
|---|---|---|
| Under 3 years | Suppressed — sample below publication threshold Check a registration with TfL | n = 231 |
| 3–5 years | 100.0% Check a registration with TfL | n = 44,665 |
| 6–7 years | 100.0% Check a registration with TfL | n = 39,208 |
| 8 years | 100.0% Check a registration with TfL | n = 15,778 |
| 9 years | 68.3% Check a registration with TfL | n = 17,072 |
| 10–14 years | 33.1% Check a registration with TfL | n = 50,767 |
| 15–17 years | 39.1% Check a registration with TfL | n = 13,415 |
| 18 years | 42.7% Check a registration with TfL | n = 2,668 |
| 19 years | 0.0% Check a registration with TfL | n = 1,610 |
| 20+ years | 0.0% Check a registration with TfL | n = 3,225 |
Seat Leon petrol vs diesel: which ages best
Diesel is highest at 28.3%; Hybrid is lowest at 12.9% — the gap is 15.5 percentage points.
higher = larger sharecompare shares in percentage points
Fuel split table
| Fuel | Tests | % failing | Gap vs best |
|---|---|---|---|
| Petrol | 108,132 | 20.3% | +7.4 pp |
| Diesel | 75,557 | 28.3% | +15.5 pp |
| Hybrid | 5,033 | 12.9% | +0.0 pp |
Chart sample sizes: n=108k · n=76k · n=5,033.
How dangerous are Seat Leon MOT failures?
Major defects are well below the reference at 36.4 per 100 tests, against 52.8 per 100 tests nationally.
higher bar = fails more oftenrate per 100 tests
Severity table
| Severity | This family /100 | National /100 | Family / national |
|---|---|---|---|
| Minor | 11.58 | 14.22 | 0.81× |
| Major | 36.40 | 52.75 | 0.69× |
| Dangerous | 10.85 | 11.15 | 0.97× |
Chart values: Minor 11.6 · Major 36.4 · Dangerous 10.8.
Per 100 tests on this family. National average: Minor 14.2 · Major 52.8 · Dangerous 11.2 per 100.
Does the month of a Seat Leon MOT matter?
Jan is highest at 25.3%; Jun is lowest at 23.2% — the gap is 2.1 percentage points.
higher = larger sharecompare shares in percentage points
Chart scale: 22%–33%.
bars: Seat Leon · dashed: all class-4 cars
Month-by-month table
| Month | Seat Leon | All vehicles | Gap |
|---|---|---|---|
| Jan | 25.32% | 31.12% | -5.8 pp |
| Feb | 24.47% | 29.99% | -5.5 pp |
| Mar | 23.46% | 28.26% | -4.8 pp |
| Apr | 24.35% | 29.78% | -5.4 pp |
| May | 23.82% | 28.79% | -5.0 pp |
| Jun | 23.18% | 28.15% | -5.0 pp |
| Jul | 23.69% | 29.33% | -5.6 pp |
| Aug | 23.81% | 29.2% | -5.4 pp |
| Sep | 23.36% | 28.19% | -4.8 pp |
| Oct | 24.95% | 30.34% | -5.4 pp |
| Nov | 24.82% | 30.58% | -5.8 pp |
| Dec | 24.16% | 29.33% | -5.2 pp |
Takeaway: the spread between best and worst month is 2.1 percentage points — booking month barely matters for this family. Seasonality partly reflects registration-date clustering, not weather.
Before reading the shape: most of it is not about cars. Britain changes its registration plates twice a year, and 18.9% of these cars were first registered in March with another17.1% in September — 36% in two months against the 17% an even spread would give. An MOT falls due three years after first registration, so the buying calendar becomes the testing calendar. That shapes how many cars are tested each month — not how often they fail: the busiest months here are not the worst ones, so read the failure line on its own and the volume behind it separately.
Seat Leon average mileage by age
At age 8, the middle half of Leons runs from 52,893 miles to 86,539 miles, against 68,139 miles as the median.
further right = more milesmedian is the typical car; band is p25–p75
Chart axes: car age, years · odometer scale 0–165k mi.
Does high mileage mean more Seat Leon MOT failures at the same age?
Within the same age group, split by odometer (2024 MOTs), so this separates wear from age: at ages 6–9, 13.1% of those with under 40,000 miles failed first time versus 25.7% of those with over 140,000 miles.Inside this age group, higher mileage goes with more failures.
| Age | Odometer | % failing | 95% interval | Tests |
|---|---|---|---|---|
| 3–5 | <40k miles | 12.2% | 11.8–12.5% | 28,089 |
| 3–5 | 40-70k miles | 18.9% | 18.2–19.6% | 13,481 |
| 3–5 | 70-100k miles | 23.7% | 22–25.5% | 2,191 |
| 3–5 | 100-140k miles | 23.5% | 20.2–27.1% | 584 |
| 3–5 | 140k+ miles | 25.7% | 21.2–30.9% | 311 (rough estimate) |
| 6–9 | <40k miles | 13.1% | 12.5–13.8% | 11,285 |
| 6–9 | 40-70k miles | 18.7% | 18.3–19.2% | 33,203 |
| 6–9 | 70-100k miles | 22% | 21.4–22.6% | 19,233 |
| 6–9 | 100-140k miles | 24.9% | 23.9–25.9% | 6,849 |
| 6–9 | 140k+ miles | 25.7% | 23.5–28% | 1,478 |
| 10–14 | <40k miles | 12% | 10.3–13.9% | 1,211 |
| 10–14 | 40-70k miles | 20.2% | 19.4–21.2% | 7,640 |
| 10–14 | 70-100k miles | 27.2% | 26.6–27.9% | 17,305 |
| 10–14 | 100-140k miles | 32.9% | 32.2–33.6% | 17,879 |
| 10–14 | 140k+ miles | 36% | 34.9–37.2% | 6,720 |
| 15+ | <40k miles | 19.6% | 14.8–25.5% | 209 (rough estimate) |
| 15+ | 40-70k miles | 35.9% | 33.2–38.6% | 1,213 |
| 15+ | 70-100k miles | 39.4% | 37.9–41% | 3,953 |
| 15+ | 100-140k miles | 41.3% | 40.2–42.3% | 8,582 |
| 15+ | 140k+ miles | 42.5% | 41.3–43.6% | 6,944 |
line: median · band: middle half of the fleet (p25–p75)
Mileage by age (p25 / median / p75)
| Age | p25 | Median | p75 | Tests |
|---|---|---|---|---|
| 3 | 19,081 | 26,545 | 36,860 | 11,432 |
| 4 | 24,197 | 32,517 | 43,395 | 13,802 |
| 5 | 30,650 | 40,400 | 53,186 | 19,431 |
| 6 | 38,279 | 49,449 | 62,971 | 21,059 |
| 7 | 46,241 | 59,538 | 75,472 | 18,149 |
| 8 | 52,893 | 68,139 | 86,539 | 15,778 |
| 9 | 61,315 | 79,103 | 99,146 | 17,072 |
| 10 | 69,735 | 89,023 | 111,058 | 18,414 |
| 11 | 76,091 | 96,128 | 117,698 | 11,492 |
| 12 | 84,184 | 104,518 | 127,454 | 8,775 |
| 13 | 88,497 | 109,893 | 133,557 | 6,448 |
| 14 | 94,936 | 117,025 | 141,764 | 5,638 |
| 15 | 93,290 | 116,768 | 141,100 | 4,764 |
| 16 | 98,161 | 121,503 | 144,796 | 4,537 |
| 17 | 103,722 | 126,350 | 151,917 | 4,114 |
| 18 | 102,649 | 127,207 | 153,269 | 2,668 |
| 19 | 102,940 | 128,770 | 154,149 | 1,610 |
| 20+ | 100,818 | 128,873 | 157,099 | 3,230 |
A typical 8-year-old Leon has ~68,139 miles on the clock. Much more — ask why; much less — check for gaps in the MOT history.
Where in Britain the Seat Leon fails its MOT most
Taunton area is highest at 34.4%; St Albans area is lowest at 17.5% — the gap is 17.0 percentage points.
higher = larger sharecompare shares in percentage points
| Toughest areas | % failing | vs model overall |
|---|---|---|
| Taunton (TA) | 34.44% | +10.3 pp |
| Plymouth (PL) | 34.01% | +9.9 pp |
| Llandrindod Wells (LD) | 32.48% | +8.3 pp |
| Exeter (EX) | 32.28% | +8.2 pp |
| Kirkcaldy (KY) | 30.12% | +6.0 pp |
| Easiest areas | % failing | vs model overall |
|---|---|---|
| St Albans (AL) | 17.49% | -6.6 pp |
| Chelmsford (CM) | 17.57% | -6.6 pp |
| Bromley (BR) | 17.82% | -6.3 pp |
| Southend-on-Sea (SS) | 18.7% | -5.4 pp |
| Enfield (EN) | 19.5% | -4.6 pp |
Why do areas differ?
For each external factor we correlate the area fail rate with the factor across postcode areas that have ≥800 tests of this family, then compare the bottom vs top fifth (quintile) of the factor. Correlation, not causation — factors travel together (the north is colder and often poorer; urban areas are denser and less salted). Road surface condition is joined now, for the 91 English areas the DfT publishes, and it explains nothing: the correlation with suspension failures is −0.01 and with body and structure failures 0.07. Potholes wreck wheels and tyres between tests, but by the time a car reaches the bay the road it drives on leaves no measurable trace.
In areas with the highest mot centre density this model fails 4.7 pp more often than in the lowest fifth (r=0.49, n=115 areas with ≥800 tests).
In areas with the highest urban share this model fails 4.2 pp less often than in the lowest fifth (r=-0.44, n=115 areas with ≥800 tests).
In areas with the highest terrain gradient this model fails 3.1 pp more often than in the lowest fifth (r=0.40, n=68 areas with ≥800 tests).
| Factor | Low Q | High Q | Gap | Correlation |
|---|---|---|---|---|
| MOT centre density | 21.4% | 26.1% | +4.7 pp | r=0.49 |
| Urban share | 26.0% | 21.8% | -4.2 pp | r=-0.44 |
| Terrain gradient | 22.8% | 25.9% | +3.1 pp | r=0.40 |
Factors that only mean something combined
Some conditions are useless on their own and informative multiplied together. Frost days alone say little — Britain barely freezes. Salt tonnage alone says little — it tracks frost. Distance to the sea alone says little. Multiply the first two and divide by the third and you get an index of how hard an area attacks a car's underside, and it lines up with the corrosion defects we actually record. We built five such combinations and tested each against our own data. Three survived; two did not, and the failures are listed here on purpose — a proxy that was never checked is decoration. One survivor only survived on the second attempt: built from a crude stand-in for street parking it failed outright, and rebuilt from the census — terraced streets carrying more cars than they have driveways — it works, and carries information the salt index does not.
| Composite | Built from | Tested against | r | Verdict |
|---|---|---|---|---|
| Underbody corrosion | frost days × salt load ÷ (distance to coast + 1) | share of tests with a corrosion defect | +0.42 | holds (116 areas) |
| Tyre wear | rain days × annual miles ÷ age at first tyre advisory | share of tests failing on tyres | +0.45 | holds (116 areas) |
| Overnight corrosion | terraced housing × cars per household × frost days | share with a corrosion defect | +0.41 | holds (102 areas) — and adds signal beyond the first index |
| Deferred maintenance | deprivation × advisory-to-failure conversion ÷ labour rate | cars repeating the same advisory | −0.26 | fails (118 areas) |
| Powertrain stress | engine capacity ÷ kerb weight | suspension, brake and emissions failures | −0.16 | fails (22 models) |
The deprivation result is the one worth dwelling on. The intuition that poorer areas defer repairs is strong enough that most people treat it as established. We tested it twice — once on raw failure rates (r = 0.04) and again, more fairly, on whether an advisory turns into a failure — and it did not hold any of the three times we tried it — on raw failure rates, on advisory-to-failure conversion, and again with deprivation measured properly inside each nation rather than England alone. We are closing it. What does predict local failure rates is the density of test centres, which is a statement about testing, not about cars.
All external-factor correlations (machine-readable)
| Factor | r | n areas | Low-Q fail % | High-Q fail % | Gap pp | Low-Q factor | High-Q factor |
|---|---|---|---|---|---|---|---|
| MOT centre density (per 10k vehicles) | 0.488 | 115 | 21.4 | 26.1 | +4.7 | 5 | 8.8 |
| Urban share (0–1) | -0.439 | 115 | 26.0 | 21.8 | -4.2 | 0.4 | 1 |
| Terrain gradient (% grade) | 0.400 | 68 | 22.8 | 25.9 | +3.1 | 0.5 | 3.7 |
| Distance to coast (km) | -0.204 | 115 | 25.4 | 23.9 | -1.5 | 6 | 78.7 |
| Frost days (days/year) | 0.162 | 115 | 24.3 | 25.0 | +0.7 | 11.8 | 37.7 |
| Road-salt proxy (g/m²-yr) | 0.150 | 115 | 23.6 | 24.9 | +1.2 | 223 | 667.4 |
| Income deprivation (score) | -0.040 | 97 | 22.8 | 23.3 | +0.5 | 0.1 | 0.2 |
Deprivation uses England IMD 2019 income score only (Scotland SIMD is a different scale). Salt proxy is a simplified NWSRG-style dry-salt sum from air Tmin; coastalness is distance from the area centroid to the nearest coastline.
Every dot is a postcode area — size = how many were tested there, colour = share failing. These figures are not age-adjusted: coastal and rural areas often run older fleets and salted roads, so higher raw fail rates do not automatically mean a worse local stock of this model.
Map labels: Scotland · N. England · Wales · London · S. West. Colour scale: 20%–30% failing.
Seat Leon survival: which cars are still on the road
By age 19 is well below the reference at 6.6%, against 100.0% at the ages 4–6 reference level.
higher = larger sharecompare shares in percentage points
Chart axes: car age, years · survival vs ages 4–6 · scale 0–105%.
Survival vs fail rate by age
| Age | Tests | Survival vs ages 4–6 | Fail % |
|---|---|---|---|
| 3 | 108,525 | 99.8% | 12.73% |
| 4 | 108,025 | 99.3% | 13.82% |
| 5 | 112,953 | 100% | 15.93% |
| 6 | 105,376 | 96.9% | 17.58% |
| 7 | 93,900 | 86.3% | 19.61% |
| 8 | 82,749 | 76.1% | 21.75% |
| 9 | 73,368 | 67.4% | 24.9% |
| 10 | 61,566 | 56.6% | 28.9% |
| 11 | 49,563 | 45.6% | 33.96% |
| 12 | 45,345 | 41.7% | 37.98% |
| 13 | 41,245 | 37.9% | 40.69% |
| 14 | 35,655 | 32.8% | 41.75% |
| 15 | 29,770 | 27.4% | 42.74% |
| 16 | 24,295 | 22.3% | 43.77% |
| 17 | 17,663 | 16.2% | 44.53% |
| 18 | 11,612 | 10.7% | 43.59% |
| 19 | 7,211 | 6.6% | 42.05% |
By age 19, only about 7% as many cars of this family present for MOT as at ages 4–6 (reference n≈108,784); survivors still fail at 42.0% vs 13.8% at age 4. Older cars that still appear are a selected subset — weaker ones have already left.
How many miles does a Seat Leon last?
100,000+ miles is highest at 24.9%; 200,000+ miles is lowest at 0.6% — the gap is 24.3 percentage points.
higher = larger sharecompare shares in percentage points
| Odometer | Tests ≥ threshold | Share of sample |
|---|---|---|
| 100,000+ miles | 252,585 | 24.86% |
| 150,000+ miles | 53,224 | 5.24% |
| 200,000+ miles | 6,122 | 0.6% |
Of 1,016,000 tests of this family with a usable odometer in 2024, 24.9% had reached 100k miles, 5.2% had reached 150k miles, 0.6% had reached 200k miles. This is a cross-section of cars still presenting for MOT, not a full birth cohort.
How many years is a Seat Leon likely to last?
Bought at age 5 is highest at 6.7 years; Bought at age 15 is lowest at 2.5 years — the gap is 4.2 years.
bigger number = longer remaining lifeyears on the observed survival curve
| Age now | Typical mileage (p50) | Expected years left |
|---|---|---|
| 5 | — | 6.7 |
| 8 | — | 5.3 |
| 10 | — | 4.8 |
| 12 | — | 4.2 |
| 15 | — | at least 2.5 |
estimateEstimate only — not a warranty: a typical 10-year-old example of this family has about 4.8 expected years of further MOT-present life on the 2024 survival curve. Derived from how many cars of each age still appear for test, not from a longitudinal panel.
Seat Leon faults that come together
Road Wheels + Seatbelts & SRS stand out at 9.03×, against 1.00× if the faults were independent.
above 1.0× = more than expectedbelow 1.0× = less
| Group A | Group B | Together | Lift |
|---|---|---|---|
| Road Wheels | Seat belts and supplementary restraint systems | 238 | 9.03× (rough estimate) |
| Identification of the vehicle | Seat belts and supplementary restraint systems | 226 | 8.44× (rough estimate) |
| Noise, emissions and leaks | Seat belts and supplementary restraint systems | 1,837 | 8.18× |
| Seat belts and supplementary restraint systems | Steering | 703 | 7.75× |
| Identification of the vehicle | Road Wheels | 73 | 7.25× (rough estimate) |
| Lamps, reflectors and electrical equipment | Seat belts and supplementary restraint systems | 3,884 | 6.93× |
| Body, chassis, structure | Noise, emissions and leaks | 8,209 | 6.88× |
| Identification of the vehicle | Noise, emissions and leaks | 587 | 6.85× |
| Noise, emissions and leaks | Steering | 1,863 | 6.41× |
| Body, chassis, structure | Steering | 3,089 | 6.4× |
| Body, chassis, structure | Seat belts and supplementary restraint systems | 2,309 | 6.19× |
| Identification of the vehicle | Lamps, reflectors and electrical equipment | 1,229 | 5.74× |
| Lamps, reflectors and electrical equipment | Noise, emissions and leaks | 10,018 | 5.58× |
| Identification of the vehicle | Steering | 193 | 5.57× (rough estimate) |
| Lamps, reflectors and electrical equipment | Steering | 3,993 | 5.5× |
| Brakes | Seat belts and supplementary restraint systems | 2,523 | 5.5× |
| Noise, emissions and leaks | Road Wheels | 461 | 5.46× (rough estimate) |
| Brakes | Noise, emissions and leaks | 7,733 | 5.27× |
| Body, chassis, structure | Identification of the vehicle | 730 | 5.13× |
| Brakes | Identification of the vehicle | 880 | 5.03× |
| Lamps, reflectors and electrical equipment | Road Wheels | 1,048 | 4.97× |
| Brakes | Steering | 2,938 | 4.95× |
| Brakes | Road Wheels | 833 | 4.83× |
| Body, chassis, structure | Lamps, reflectors and electrical equipment | 13,834 | 4.64× |
| Brakes | Lamps, reflectors and electrical equipment | 15,868 | 4.33× |
| Identification of the vehicle | Visibility | 752 | 4.31× |
| Seat belts and supplementary restraint systems | Suspension | 2,967 | 4.15× |
| Steering | Suspension | 3,820 | 4.13× |
| Seat belts and supplementary restraint systems | Visibility | 1,875 | 4.11× |
| Body, chassis, structure | Brakes | 9,918 | 4.07× |
| Body, chassis, structure | Suspension | 15,367 | 4.04× |
| Noise, emissions and leaks | Suspension | 9,199 | 4.02× |
| Road Wheels | Steering | 137 | 4.02× (rough estimate) |
| Road Wheels | Tyres | 829 | 4× |
| Identification of the vehicle | Suspension | 1,080 | 3.96× |
| Body, chassis, structure | Road Wheels | 550 | 3.92× |
| Lamps, reflectors and electrical equipment | Suspension | 22,081 | 3.86× |
| Road Wheels | Visibility | 657 | 3.83× |
| Identification of the vehicle | Tyres | 798 | 3.79× |
| Brakes | Suspension | 17,536 | 3.75× |
| Road Wheels | Suspension | 968 | 3.6× |
| Noise, emissions and leaks | Visibility | 5,200 | 3.56× |
| Lamps, reflectors and electrical equipment | Visibility | 12,742 | 3.49× |
| Seat belts and supplementary restraint systems | Tyres | 1,926 | 3.49× |
| Steering | Visibility | 1,985 | 3.36× |
| Brakes | Tyres | 11,685 | 3.24× |
| Noise, emissions and leaks | Tyres | 5,410 | 3.06× |
| Brakes | Visibility | 9,046 | 3.03× |
| Body, chassis, structure | Visibility | 7,076 | 2.91× |
| Lamps, reflectors and electrical equipment | Tyres | 12,761 | 2.89× |
| Tyres | Visibility | 9,437 | 2.63× |
| Suspension | Visibility | 12,083 | 2.59× |
| Suspension | Tyres | 14,065 | 2.5× |
| Body, chassis, structure | Tyres | 6,862 | 2.34× |
| Steering | Tyres | 1,621 | 2.27× |
| Lamps, reflectors and electrical equipment | Seat belt installation check | 14 | too few (rough estimate) |
| Seat belt installation check | Suspension | 11 | too few (rough estimate) |
| Body, chassis, structure | Seat belt installation check | 8 | too few (rough estimate) |
| Brakes | Seat belt installation check | 8 | too few (rough estimate) |
| Seat belt installation check | Tyres | 7 | too few (rough estimate) |
| Lamps, reflectors and electrical equipment | Speedometer and speed limiter | 6 | too few (rough estimate) |
| Noise, emissions and leaks | Seat belt installation check | 6 | too few (rough estimate) |
| Seat belt installation check | Visibility | 6 | too few (rough estimate) |
| Noise, emissions and leaks | Speedometer and speed limiter | 5 | too few (rough estimate) |
| Brakes | Speedometer and speed limiter | 5 | too few (rough estimate) |
Defects in «Noise, emissions and leaks» and «Seat belts and supplementary restraint systems» appear together 8.18× more often than chance (1,837 co-occurrences in the same test; lift≥1.3, n≥500).
Lift = how many times more often both groups appear on the same test than if independent. A pair is listed from 5 tests with both faults; the lift is shown from 20, and called above chance only when its 95% interval excludes 1 (see rough estimates).
Is low mileage better for a Seat Leon?
Cars driven under 5,000 miles a year is well below the reference at 14.4%, against 25.3% for cars driven 8,000–12,000 miles a year.
higher = larger sharecompare shares in percentage points
| Band | Fail % | Tests |
|---|---|---|
| <5k miles/year | 14.35% | 55,947 |
| 8–12k miles/year | 25.27% | 300,411 |
| Gap (low − normal) | -10.92 pp | — |
By fuel and age
Diesel
| Age | Low-use fail % | n | Normal fail % | n | Gap pp |
|---|---|---|---|---|---|
| 5 | 8.83 | 1,721 | 17.06 | 15,842 | -8.23 pp |
| 6 | 10.88 | 1,654 | 18.28 | 19,474 | -7.39 pp |
| 7 | 11.75 | 1,702 | 21.21 | 22,234 | -9.46 pp |
| 8 | 12.09 | 1,646 | 24.14 | 22,647 | -12.05 pp |
| 9 | 13.51 | 1,614 | 27.38 | 22,508 | -13.87 pp |
| 10 | 18.63 | 1,514 | 30.98 | 20,669 | -12.36 pp |
| 11 | 20.47 | 1,275 | 36.2 | 17,855 | -15.73 pp |
| 12 | 23.91 | 1,167 | 39.6 | 16,992 | -15.69 pp |
| 13 | 26.81 | 951 | 41.77 | 15,201 | -14.96 pp |
| 14 | 31.21 | 833 | 42.82 | 12,762 | -11.61 pp |
Petrol
| Age | Low-use fail % | n | Normal fail % | n | Gap pp |
|---|---|---|---|---|---|
| 5 | 9.03 | 10,008 | 17.27 | 25,531 | -8.24 pp |
| 6 | 10.98 | 7,804 | 18.66 | 21,997 | -7.68 pp |
| 7 | 11 | 5,890 | 19.92 | 16,419 | -8.91 pp |
| 8 | 11.04 | 4,674 | 22.34 | 12,778 | -11.3 pp |
| 9 | 12.57 | 3,556 | 25.76 | 10,118 | -13.19 pp |
| 10 | 15.76 | 2,691 | 30.1 | 7,574 | -14.35 pp |
| 11 | 21.54 | 1,945 | 37.61 | 5,871 | -16.07 pp |
| 12 | 24.66 | 1,679 | 42.09 | 5,022 | -17.44 pp |
| 13 | 28.43 | 1,776 | 45 | 4,789 | -16.56 pp |
| 14 | 33.13 | 1,847 | 44.82 | 4,112 | -11.69 pp |
At matched ages 5–14, cars averaging under 5k miles/year fail at 14.3% vs 25.3% for 8–12k miles/year — 10.9 pp lower (n_low=55,947, n_normal=300,411). In this family low annual use is associated with fewer MOT fails, not more — the ‘garage queen’ penalty is not visible in overall fail rates. Diesel alone: 16.2% low-use vs 28.0% normal (-11.8 pp).
Which Seat Leon engine is best?
diesel 1.5–1.8 is highest at 111.3; petrol 1.8–2.0 is lowest at 84.4 — the gap is 26.9 points.
below 100 is betterabove 100 is worse100 = normal for this model at that age
| Fuel | Capacity | vs own age norm | Raw fail % | Tests |
|---|---|---|---|---|
| petrol | 1.8–2.0 litre | 84.4 | 20.11% | 71,095 |
| petrol | 1.2–1.5 litre | 93.5 | 17% | 236,113 |
| petrol | 1.0–1.2 litre | 94.5 | 19.54% | 115,781 |
| diesel | 1.2–1.5 litre | 96.8 | 23.94% | 330 (rough estimate) |
| petrol | 1.5–1.8 litre | 100.6 | 36.16% | 80,031 |
| diesel | 1.8–2.0 litre | 101.4 | 29.51% | 289,890 |
| petrol | under 1.0 litre | 105.9 | 14.92% | 13,991 |
| diesel | 1.5–1.8 litre | 111.3 | 24.99% | 207,813 |
Splitting this model by fuel alone hides the thing that actually differs. Within the same badge, the diesel 1.5–1.8 runs at 111.3 against this model's own age norm while the petrol 1.8–2.0 runs at 84.4 — a spread of 26.9 points between two cars that share a name.
Read this one with more care than the rest of the page. Age is held constant, but who buys which engine is not: the largest capacity in a range is often a performance or executive variant that is garaged, cherished and lightly driven, while the smallest is frequently a fleet or entry car worked hard from new. The gap below is real in the test records; how much of it is the engine and how much is the owner, this data cannot separate. Bands under 100 tests are not shown; bands under 5,000 tests are rough estimates.
Best year for a Seat Leon, and the years to avoid
Build year 2019 is highest at 114.7; Build year 2014 is lowest at 91.2 — the gap is 23.5 points.
below 100 is betterabove 100 is worse100 = normal for this model at that age
build year vs the same model at the same age · 100 = as expected
Every build year with its confidence interval
| Build year | vs own age norm | 95% CI | Raw fail % | Tests | Verdict |
|---|---|---|---|---|---|
| 2020 | 102.7 | 99.4–106.1 | 13.21% | 27,624 | no different |
| 2019 | 114.7 | 112.3–117 | 15.7% | 59,282 | worse |
| 2018 | 103 | 101.3–104.8 | 15.05% | 85,811 | worse |
| 2017 | 94.4 | 92.9–96 | 14.58% | 97,255 | better |
| 2016 | 97.7 | 96.2–99.2 | 16.35% | 97,267 | better |
| 2015 | 92.2 | 90.9–93.6 | 17.29% | 105,329 | better |
| 2014 | 91.2 | 90–92.4 | 19.34% | 115,712 | better |
| 2013 | 96.6 | 95.1–98 | 23.27% | 72,945 | better |
| 2012 | 105.4 | 103.8–107 | 28.81% | 58,021 | worse |
| 2011 | 106.1 | 104.4–107.8 | 32.59% | 44,258 | worse |
| 2010 | 108.5 | 106.8–110.3 | 36.93% | 40,356 | worse |
| 2009 | 106.3 | 104.5–108 | 39.4% | 36,174 | worse |
| 2008 | 101.6 | 100–103.2 | 40.35% | 37,877 | no different |
| 2007 | 99.3 | 97.8–100.8 | 41.35% | 40,443 | no different |
| 2006 | 105.6 | 103.8–107.4 | 45.34% | 30,008 | worse |
| 2005 | 103 | 100.8–105.3 | 44.82% | 17,970 | worse |
| 2004 | 98.1 | 95.7–100.5 | 42.96% | 15,199 | no different |
| 2003 | 101.4 | 98.7–104.1 | 44.36% | 12,368 | no different |
| 2002 | 101.6 | 98–105.2 | 44.24% | 7,003 | no different |
| 2001 | 106.2 | 100.9–111.6 | 45.65% | 3,341 | worse |
| 2000 | 111.6 | 100.5–122.7 | 47.07% | 820 | worse |
The best build year here is 2014 and the weakest is 2019. Comparing build years sounds simple and is not: within a single year of testing, a car's build year and its age are the same number, so a naive comparison of years is a comparison of ages wearing a disguise. Each year below is measured against the same model at the same age in other cohorts, across six years of testing — 13 of 21 years come out distinguishable from their own model's age norm.
Two limits worth knowing before you act on this. Age, test year and build year are locked together by arithmetic, so the test-year effect is taken from the observed national failure level of each year rather than estimated — it is an adjustment, not a solution.
Seat Leon MOT repair costs
The MOT-failure repair budget per test runs from £57.97 to £110.14, against £54.85 for the test itself.
bigger number = costs morepounds per test, MOT-failing faults only
| Component | Fails per 100 tests | Typical repair | Its price | Contribution |
|---|---|---|---|---|
| Suspension | 12.5 (nat. 15.36) | Suspension coil spring (single corner) | £180 | £22.50 |
| Lamps, reflectors and electrical equipment | 10.1 (nat. 18.09) | Battery replacement (standard 12V lead-acid) | £140 | £14.14 |
| Brakes | 8.7 (nat. 11.25) | Front brake pads (parts + labour, typical hatchback) | £150 | £13.05 |
| Tyres | 9.2 (nat. 8.7) | Tyre (single mid-range 16" fitted) | £90 | £8.28 |
Multiply how often each component fails on this model by what that repair usually costs, and you get the amount an owner should expect to budget per test for MOT-failing faults only — roughly £58 to £110, on top of the test fee itself. It is a budgeting figure, not a quote: the spread between a set of pads and a set of discs is most of the range.
Prices are modal quotes from a hand-kept catalogue of published UK garage guides — we do not scrape the booking sites, their terms forbid it, so this list is short and updated by hand with a source and date against each line. Each line prices one typical repair in that group, not a full remedy, and only groups our catalogue actually covers are counted. The contrast worth noticing is the second card: the legal maximum for the test has been £54.85 since 2010, while the repairs it uncovers have followed inflation the whole time.
For scale from a different direction: Warrantywise, which sees used-car warranty claims rather than test failures, puts the average claim at £2,052 across the ten highest-claim models it ranks and £539 for Honda, the lowest-claim make in its index (Warrantywise index 2026, 1.6 million claims, cars aged 3–15). Those sit an order of magnitude above the figures in this table, and the gap is the point: a warranty claim is a gearbox or an engine, which almost never fails an MOT, while the faults that do fail one are corrosion, lamps and tyres, which no warranty pays for. The two numbers answer different questions and neither replaces the other.
Seat Leon running costs for a fleet
Vehicles failing at age 10 stand out at 23.0%, against 18.0% at age 5, tested in the same year.
higher = larger sharecompare shares in percentage points
Failure rate and typical odometer by age
| Age | Fails | Median odometer | Tests | Gap vs age 5 |
|---|---|---|---|---|
| 3 | 11.95% | 26,545 | 11,432 | -5.8 pp |
| 4 | 13.64% | 32,517 | 13,802 | -4.1 pp |
| 5 | 17.76% | 40,400 | 19,431 | +0.0 pp |
| 6 | 18.58% | 49,449 | 21,059 | +0.8 pp |
| 7 | 19.51% | 59,538 | 18,149 | +1.8 pp |
| 8 | 18.87% | 68,139 | 15,778 | +1.1 pp |
| 9 | 21.06% | 79,103 | 17,072 | +3.3 pp |
| 10 | 22.77% | 89,023 | 18,414 | +5.0 pp |
| 11 | 26.68% | 96,128 | 11,492 | +8.9 pp |
| 12 | 32.97% | 104,518 | 8,775 | +15.2 pp |
| 13 | 36.54% | 109,893 | 6,448 | +18.8 pp |
| 14 | 38.91% | 117,025 | 5,638 | +21.1 pp |
| 15 | 38.77% | 116,768 | 4,764 | +21.0 pp |
| 16 | 41.7% | 121,503 | 4,537 | +23.9 pp |
| 17 | 42% | 126,350 | 4,114 | +24.2 pp |
| 18 | 43.93% | 127,207 | 2,668 | +26.2 pp |
| 19 | 40.12% | 128,770 | 1,610 | +22.4 pp |
The number a fleet manager needs is not the failure rate, it is the year the car starts costing more. Between cars aged 11 and cars aged 12, both tested in 2024, the failure rate of this model is 6.29 percentage points higher — the steepest one-year step in this cross-section of different cars, and a natural planning point for replacement.
Repair spend uses the same modal prices as the section above, so it inherits the same limits: one typical repair per component group, not a full remedy. Downtime is the gap between the failed test and the passed re-test, which is the window a vehicle is legally off the road.
Seat Leon rust problems: where they corrode
Age-standardised corrosion susceptibility is well below the reference at 0.93×, against 1.00× for the national age-standardised rate.
above 1.0× = rusts more than averagebelow 1.0× = rusts less
This Seat Leon fails on corrosion at about the average rate once age is held constant, and its owners live in areas that are saltier than most for the models we publish.
Corrosion is the one failure mode that is as much about geography as about the car. We keep the two apart on purpose: a model can look rusty simply because it is popular in Scotland, and a model can look clean simply because it is bought in Surrey. Blending them into a single score would hide which of the two is doing the work.
Exposure is this model's tests weighted by an area corrosion index built from frost days, salt load and distance to the coast — the composite validated at r = 0.42 against corrosion defects we actually record. It is published as a rank, not a raw score, because every mainstream model skews towards low-corrosion areas for the simple reason that most of Britain's cars are in the south. Susceptibility is standardised to the national age profile, so an old fleet does not get labelled a rusty model.
Does a Seat Leon advisory become a failure?
Lamps, reflectors and electrical equipment are highest at 22.5%; Identification of the vehicle is lowest at 3.4% — the gap is 19.1 percentage points.
higher = more likelypercentage is the observed transition probability
chance the same component fails at the next MOT, given an advisory now
| Component | Fails next time | Typical lead time | Miles of warning | Advisories tracked |
|---|---|---|---|---|
| Lamps, reflectors and electrical equipment | 22.4% | 12 months | 6,164 | 4,957 |
| Body, chassis, structure | 17.9% | 12.1 months | 5,910 | 21,136 |
| Steering | 14.9% | 12.1 months | 5,652 | 2,651 |
| Suspension | 14.1% | 12 months | 7,210 | 146,076 |
| Brakes | 10.9% | 12.1 months | 6,763 | 141,936 |
| Tyres | 8.9% | 12 months | 7,434 | 198,770 |
| Noise, emissions and leaks | 8.2% | 12.1 months | 5,895 | 20,839 |
| Visibility | 7.9% | 12 months | 7,948 | 812 |
| Seat belts and supplementary restraint systems | 3.9% | 12.1 months | 6,377 | 3,438 |
| Identification of the vehicle | 3.4% | 12 months | 6,968 | 15,432 |
This is the question an advisory note actually raises, and it needs six years of test history to answer. We followed the same vehicles from one MOT to the next across 2019–2024 and measured how often a component that was merely advised came back as a genuine failure at the next test.
Read it as a budgeting horizon, not a prophecy: the most likely component above turns into a failure for about 22 in 100 cars, and the median gap is 12 months and roughly 6,164 miles. The rest were repaired, sold, scrapped, or simply held. Rows with fewer than 500 tracked advisories are not shown.
What will fail next on a Seat Leon?
Lamps, reflectors and electrical equipment after a failure at age 20+ are highest at 27.0%; Suspension after a passed at age <3 is lowest at 1.8% — the gap is 25.2 percentage points.
higher = more likelypercentage is the observed transition probability
| Age | Last test | Most likely next failures | Cars tracked |
|---|---|---|---|
| <3 | passed | Tyres 4.6% · Visibility 2.7% · Suspension 1.8% | 46,054 |
| <3 | advisory | Tyres 5.9% · Visibility 3.5% · Suspension 3.2% | 19,328 |
| <3 | failure | Tyres 5.9% · Visibility 4.1% · Suspension 3.6% | 8,842 |
| 3-5 | passed | Tyres 4.8% · Visibility 3.2% · Suspension 2.7% | 136,604 |
| 3-5 | advisory | Tyres 6.8% · Visibility 4.6% · Suspension 4.0% | 87,864 |
| 3-5 | failure | Tyres 7.6% · Visibility 5.3% · Suspension 4.6% | 39,512 |
| 6-8 | passed | Tyres 5.0% · Suspension 4.7% · Lamps, reflectors and electrical equipment 3.5% | 88,520 |
| 6-8 | advisory | Tyres 7.3% · Suspension 6.9% · Brakes 5.7% | 74,282 |
| 6-8 | failure | Suspension 8.8% · Tyres 8.6% · Lamps, reflectors and electrical equipment 7.9% | 43,377 |
| 9-11 | passed | Suspension 13.3% · Lamps, reflectors and electrical equipment 8.6% · Brakes 6.0% | 39,850 |
| 9-11 | advisory | Suspension 18.0% · Lamps, reflectors and electrical equipment 11.3% · Brakes 8.6% | 39,788 |
| 9-11 | failure | Suspension 21.0% · Lamps, reflectors and electrical equipment 15.4% · Brakes 11.3% | 39,168 |
| 12-14 | passed | Suspension 17.2% · Lamps, reflectors and electrical equipment 12.5% · Body, chassis, structure 12.2% | 22,999 |
| 12-14 | advisory | Suspension 22.7% · Lamps, reflectors and electrical equipment 16.6% · Body, chassis, structure 16.6% | 25,983 |
| 12-14 | failure | Suspension 24.7% · Lamps, reflectors and electrical equipment 20.8% · Body, chassis, structure 18.9% | 34,220 |
| 15-19 | passed | Body, chassis, structure 14.0% · Lamps, reflectors and electrical equipment 12.8% · Suspension 10.9% | 11,889 |
| 15-19 | advisory | Lamps, reflectors and electrical equipment 19.3% · Body, chassis, structure 19.0% · Suspension 16.8% | 15,547 |
| 15-19 | failure | Lamps, reflectors and electrical equipment 24.8% · Body, chassis, structure 20.9% · Suspension 20.1% | 20,891 |
| 20+ | passed | Lamps, reflectors and electrical equipment 10.7% · Body, chassis, structure 10.3% · Suspension 6.9% | 533 |
| 20+ | advisory | Lamps, reflectors and electrical equipment 18.8% · Body, chassis, structure 16.6% · Suspension 12.3% | 856 |
| 20+ | failure | Lamps, reflectors and electrical equipment 27.0% · Body, chassis, structure 21.3% · Brakes 17.0% | 1,012 |
The same chains, cut differently: given a car's age and how its last test went, which component most often causes trouble at the following one.
The pattern that repeats across every family: a failure at one test roughly doubles the chance of a failure on the same component at the next one, and an advisory sits about half-way between a clean pass and a failure. Age bands in years; probabilities are per car, not per defect item.
Seat Leon ownership: what six years of MOTs show
The ten-day re-test pass rate is highest at 49.8%; The later re-test pass rate is lowest at 2.5% — the gap is 47.3 percentage points.
higher = larger sharecompare shares in percentage points
Failing is usually a same-week event, not a disaster. Of 180,391 failures followed through to their re-test, 47.73% were repaired and passed the same day and 49.77% within ten days; the median gap is 1 day. 427,354 defect items were cleared in the process.
Per mile driven, not per year. Dividing failures by the miles that actually went onto the odometers between consecutive tests gives 0.316 failures per 10,000 miles, on a median of 6,822 miles a year across 207,091 chains. This is the number to compare between models — an annual rate quietly rewards cars that barely leave the drive.
Two populations hide inside one model. 31.57% of these cars strung together three or more tests with nothing recorded at all, while 30.5% carried the same advisory three times or more — the same fault, noted, ignored, noted again. When you buy used you are buying one of those two histories, and the MOT record shows which.
Odometer anomalies: 0.688% of 207,184 chains show a reading lower than the previous test, with a median drop of 20,467 miles. We call this an anomaly and not fraud on purpose — instrument swaps, imports, unit mix-ups and keying errors all land in the same bucket. Obvious typos (drops under 100 miles or over 90% of the reading) are already excluded.
Seat Leon safety recalls and how to check yours
DVSA recall campaigns stand out at 25.
bigger number = more recorded casescompare like-for-like scope, not sample size alone
recall campaigns launched per year
| Reference | Launched | Vehicles | Concern |
|---|---|---|---|
R/2025/348 | 23/07/2025 | 67 | Takata front drivers or passenger airbag replacement |
R/2024/285 | 16/07/2024 | 2 | Drivers side front airbag |
R/2024/160 | 10/04/2024 | 18 | Driver's side front airbag |
R/2024/026 | 26/01/2024 | 2,499 | On certain vehicles with electromechanical brake servo and DSG (Direct Shift Gearbox) of a |
R/2023/294 | 16/10/2023 | 43 | In certain vehicles within a range of specified VINs it has been detected that an engine s |
All 25 campaigns
| Reference | Launched | Build dates | Vehicles | Concern |
|---|---|---|---|---|
R/2025/348 | 23/07/2025 | 18/12/2009 – 14/04/2016 | 67 | Takata front drivers or passenger airbag replacement |
R/2024/285 | 16/07/2024 | 26/09/2012 – 20/11/2012 | 2 | Drivers side front airbag |
R/2024/160 | 10/04/2024 | 23/11/2009 – 28/04/2011 | 18 | Driver's side front airbag |
R/2024/026 | 26/01/2024 | 22/10/2020 – 30/03/2022 | 2,499 | On certain vehicles with electromechanical brake servo and DSG (Direct Shift Gearbox) of a |
R/2023/294 | 16/10/2023 | 27/07/2023 – 07/08/2023 | 43 | In certain vehicles within a range of specified VINs it has been detected that an engine s |
R/2023/273 | 11/09/2023 | 24/01/2008 – 10/02/2017 | 6,433 | Front driver airbag replacement |
R/2022/185 | 28/06/2022 | 28/04/2020 – 01/03/2021 | 10,145 | THE WIRING HARNESS OF THE AIRBAG CONTROL UNIT MAY POSSIBLY HAVE BEEN CAUGHT BY THE CLUTCH |
R/2022/185 | 28/06/2022 | 01/03/2021 – 17/06/2021 | 10,145 | THE WIRING HARNESS OF THE AIRBAG CONTROL UNIT MAY POSSIBLY HAVE BEEN CAUGHT BY THE CLUTCH |
R/2022/088 | 07/04/2022 | 19/12/2020 – 21/10/2021 | 2,347 | IN SOME VEHICLESTHE FUSE IN THE HIGH-VOLTAGE SYSTEM HAS BEEN PRODUCED IN PART WITH AN INS |
R/2022/076 | 23/03/2022 | 16/10/2020 – 14/02/2022 | 2,309 | ENGINE DESIGN COVERS COULD DETACH FROM THEIR FIXING |
R/2021/407 | 10/11/2021 | 30/09/2020 – 08/10/2020 | 5 | IT IS POSSIBLE THAT THE REAR KNUCKLE FASTENING SCREW DOES NOT HAVE THE CORRCT TIGHTENING T |
R/2021/324 | 31/08/2021 | 27/09/2020 – 10/08/2021 | 346 | THE FRONT SEAT BELTS ARE NOT PROPERLY ANCHORED |
R/2019/356 | 14/10/2019 | 01/11/2016 – 05/07/2018 | 23,732 | POSSIBLE FAULT IN A TURN SIGNAL |
R/2019/262 | 09/08/2019 | 23/01/2014 – 30/10/2014 | 1,383 | THE INLET CAMSHAFT ADJUSTER PULLEY IS LIABLE TO BREAK |
R/2019/157 | 13/05/2019 | 01/12/2017 – 17/12/2017 | 50 | THE DRIVER'S AIR BAG MAY NOT INFLATE FAST ENOUGH IN THE EVENT OF ACTIVATION |
R/2018/060 | 07/03/2018 | 01/03/2011 – 30/11/2011 | 1,943 | STARTER MOTOR MAY MALFUNCTION AND OVERHEAT |
R/2017/216 | 10/07/2017 | 01/05/2008 – 31/05/2010 | 9,703 | ABS/ESC SYSTEM MAY FAIL |
R/2016/180 | 05/08/2016 | 25/11/2015 – 14/04/2016 | 1,334 | MANUAL CHILD LOCK MAY DISENGAGE WITHOUT WARNING |
R/2011/168 | 15/12/2011 | 01/01/2009 – 31/12/2009 | 65 | FUEL MAY LEAK |
R/2009/111 | 30/11/2009 | 01/09/2008 – 31/08/2009 | 52 | CLUTCH MAY OPERATE INADVERTENTLY WITH UNEXPECTED LOSS OF DRIVE. |
R/2006/033 | 05/04/2006 | 01/02/2004 – 30/06/2005 | 1,477 | FLYWHEEL MAY FAIL |
R/2004/212 | 18/02/2005 | 01/03/2004 – 31/08/2004 | 5,492 | BOLTS OF THE TANDEM FUEL PUMP COVER MAY BREAK |
R/2004/202 | 02/02/2005 | 26,886 | TENSION CRACKS MAY OCCUR ON THE VACUUM PIPE TO THE SERVO | |
R/2002/032 | 23/05/2002 | 01/03/2001 – 30/09/2001 | 1,412 | ANTI LOCK BRAKE CONTROL UNIT CONCERN |
R/2002/032 | 23/05/2002 | 1,412 | ANTI LOCK BRAKE CONTROL UNIT CONCERN |
DVSA lists 25 safety recall campaigns for the Seat Leon, covering roughly 109,300 vehicles in total. A recall is the manufacturer fixing a fault for free, so an open recall on your car costs nothing to clear.
Counter-intuitive, and measured on our own data: across the 25 families published here, more recalls go with a lower MOT Risk Index (r = −0.52). Heavily recalled models are not worse cars in the test bay — an active manufacturer removes the fault before it becomes an MOT failure.
Check whether a specific car has an outstanding recall — free, by registration — at DVSA's recall service. Source: DVSA vehicle safety recalls (check-vehicle-recalls.service.gov.uk), OGL.
Seat Leon inspection results in other countries
Netherlands APK is well below the reference at 47.3%, against 50.8% nationally.
higher = larger sharecompare shares in percentage points
| Country | Test | This model fails | National average | Position | Sample |
|---|---|---|---|---|---|
| United Kingdom | MOT (class 4) | 23.33% | 26.01% | -2.7 pp | 188,729 |
| Netherlands | APK | 47.3% | 50.8% | -3.5 pp | 41,633 |
| Finland | Katsastus | 24.5% | 26.3% | -1.8 pp | 4,251 |
The verdict is consistent across every regime where the difference is clear, which is the strongest form this comparison takes: independent inspectorates, different rulebooks, same direction of travel.
| Code | Fault | Recorded | Type |
|---|---|---|---|
210 | Tyre pressure not at the correct value | 7,233 | failure |
205 | Tyre with insufficient tread | 5,556 | failure |
516 | Dipped headlight incorrectly aimed | 3,354 | failure |
AC1 | Tyre down to 1.6–2.5 mm of tread | 3,218 | advisory |
RA2 | Excessive leak of other fluids | 1,907 | advisory |
203 | Tyre damaged | 1,555 | failure |
AC5 | Mechanical brake parts showing wear | 1,424 | advisory |
391 | Wipers leave insufficient visibility | 1,232 | failure |
Worth dwelling on how mundane the top of that list is: tyre pressure, tread depth, headlight aim. The Dutch APK records 1.112 defects per inspection against a much higher national failure rate than Britain's, and the reason is not that Dutch cars are worse — it is that the two regimes draw the line between "note it" and "fail it" in different places. Codes are the RDW's own; the English wording here is our translation of the Dutch original.
Britain is not the only country that inspects every car every year, and the Seat Leon is on the road in all of them. Each national regime writes its own rules, so the pass rates below are not comparable to each other — what does travel across a border is whether a model sits above or below its own country's average.
Rows with fewer than 500 inspections are not published. Sources: RDW open data — Meldingen Keuringsinstantie + Geconstateerde Gebreken + Gekentekende voertuigen (2024), CC0. Not an RDW endorsement.; Traficom — Periodic inspections of cars by model / by model and fault object 2024, CC BY 4.0. Adapted; licences and full notice.
Seat Leon MOT: quick answers
Seat Leon MOT Risk Index is well below the reference at 91.9, against 100 for a car with the same age profile.
below 100 is betterabove 100 is worse100 = normal for this model at that age
- What is the Seat Leon first-time MOT pass rate?
- 76.67% of first attempts passed in 2024 (188,729 tests). This is the first-time figure: retests after repair are excluded. Basis: first-time, excluding retests.
- Why does this number differ from other sites?
- Other sites often report a pass rate that includes retests or counts all attempts. Our 23.33% figure is the first-time initial failure rate, using 188,729 primary tests as the denominator (first-time, excluding retests). The age-adjusted MOT initial-failure ratio 91.9 is shown separately because raw rates compare fleet age as well as cars.
Compare the Seat Leon with other cars
Audi A1 is highest at 93.1; Ford Kuga is lowest at 90.2 — the gap is 2.9 points.
below 100 is betterabove 100 is worse100 = normal for this model at that age
Same brand
All Seat MOT statisticsSeat Ibiza MOT stats
Similar risk
Volkswagen Passat (index 92.4)Audi A1 (index 93.1)Ford Kuga (index 90.2)
Same size class
how Citroen Berlingo compareshow Volkswagen Passat compareshow Kia Picanto compares
By build year
Seat Leon 2000Seat Leon 2001Seat Leon 2002Seat Leon 2003Seat Leon 2004Seat Leon 2005Seat Leon 2006Seat Leon 2007Seat Leon 2008Seat Leon 2009Seat Leon 2010Seat Leon 2011Seat Leon 2012Seat Leon 2013Seat Leon 2014Seat Leon 2015Seat Leon 2016Seat Leon 2017Seat Leon 2018Seat Leon 2019Seat Leon 2020
By area
Seat Leon MOT failure rate by postcode area
By failure group
Seat Leon body, chassis and structure failuresSeat Leon brakes failuresSeat Leon vehicle identification failuresSeat Leon lamps, reflectors and electrics failuresSeat Leon noise, emissions and leaks failuresSeat Leon road wheels failuresSeat Leon seat belts and airbags failuresSeat Leon steering failuresSeat Leon suspension failuresSeat Leon tyres failuresSeat Leon visibility failures
Inspections abroad
Seat Leon in FinlandSeat Leon in the Netherlands
Data details & how to cite
Scope: class-4 vehicles (cars), initial tests only, outcomes pass / fail / fixed-on-the-spot at the station (PRS counts towards the failure rate — the defect was present at arrival). Index = observed initial failures ÷ failures expected for this fleet's exact age profile, ×100; margin of error is a 95% confidence interval. Covers ALL generations together — a 3-year-old and a 15-year-old are very different cars; a generation split is on the roadmap. Dataset release dataset_release_id=dvsa-2024-v2, frozen baseline; headline claim_id=family-stats:seat-leon:dvsa-2024-v2. Full method: methodology.
Cite: MOT Risk Index (2026). Seat Leon MOT statistics 2024 (data release dvsa-2024-v2; downloadable dataset motriskindex-families-2024-v5, doi:10.5281/zenodo.22975051). https://motriskindex.co.uk/cars/seat-leon/ · Published 2026-07-30.