Jaguar S-Type — MOT statistics 2024
The Jaguar S-Type failed 38.13% of 11,255 first MOT attempts in 2024 ("first-time", excluding retests). Adjusted for the age of the fleet, its initial-failure ratio is 91.0 (100 = expected for its age profile). This car fails its MOT about 9% less often than expected for its age.
Age-adjusted peer: Jaguar XE (index 90.8) — the two published results are 0.2 index points apart.
Jaguar S-Type common problems: what actually fails the MOT
Suspension stands out at 56.2 per 100 tests, against 31.7 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 | 56.2 | 45,298 | 31.7 | 1.77×1.75–1.79 |
| Lamps & electrical | 23.2 | 18,717 | 39.0 | 0.59×0.59–0.60 |
| Brakes | 23.0 | 18,584 | 24.2 | 0.95×0.94–0.97 |
| Steering | 13.3 | 10,721 | 6.3 | 2.10×2.06–2.14 |
| Visibility | 10.3 | 8,328 | 12.9 | 0.80×0.79–0.82 |
| Tyres | 9.6 | 7,716 | 10.0 | 0.96×0.93–0.98 |
| What failed | per 100 tests (this family) | per 100 tests (UK average) | ratio family / UK | What to check |
|---|---|---|---|---|
| Suspension joint dust cover severely deterioratedA suspension joint dust cover severely deteriorated | 19.70 | 1.90 | 10.35× | Listen for knocks over bumps — worn joints show up on the test |
| Suspension joint dust cover missing or no longer…A suspension joint dust cover missing or no longer prevents the ingress of dirt etc | 17.32 | 1.78 | 9.71× | Listen for knocks over bumps — worn joints show up on the test |
| Steering rack gaiter or ball joint dust cover…Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc | 5.91 | 0.60 | 9.87× | Ask the seller about: Steering rack gaiter or ball joint dust cover missing or no |
| Steering rack gaiter or ball joint dust cover…Steering rack gaiter or ball joint dust cover damaged or deteriorated | 5.47 | 0.76 | 7.22× | Ask the seller about: Steering rack gaiter or ball joint dust cover damaged or det |
| Strength or continuity of the load bearing…The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired | 4.75 | 1.12 | 4.25× | Look underneath for rust or cracks around subframe and suspension mountings |
| Suspension pin, bush or joint excessively wornA suspension pin, bush or joint excessively worn | 8.16 | 4.87 | 1.68× | Listen for knocks over bumps — worn joints show up on the test |
| Aim of a headlamp is not within limits laid down…The aim of a headlamp is not within limits laid down in the requirements | 5.84 | 2.57 | 2.28× | Try every light and switch — lamps are a top failure |
| Headlamp reflector or lens slightly defectiveHeadlamp reflector or lens slightly defective | 4.02 | 1.09 | 3.67× | Try every light and switch — lamps are a top failure |
| Brake pipe damaged or excessively corrodedBrake pipe damaged or excessively corroded | 3.26 | 1.41 | 2.32× | Look underneath for rust or cracks around subframe and suspension mountings |
| Tyre tread depth not in accordance with the…Tyre tread depth not in accordance with the requirements | 3.34 | 3.59 | 0.93× | Check tyre tread depth across the full width |
Named defects ranked by how much more often they appear than the national average — not by raw rate.
Jaguar S-Type MOT advisories: what gets flagged
Brakes are highest at 56.5 per 100 tests; Lamps & electrical are lowest at 5.1 per 100 tests — the gap is 51.4 per 100 tests.
higher bar = flagged more oftenadvisory items per 100 initial tests
Advisory rates table
| Group | Advisories per 100 |
|---|---|
| Brakes | 56.5 |
| Suspension | 53.8 |
| Tyres | 39.5 |
| Emissions & leaks | 12 |
| Body & structure | 7.8 |
| Lamps & electrical | 5.1 |
Advisories are wear the tester noted but didn't fail — what will need money soon.
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 | 33.5% | 6,972 |
| It passed | 32.8% | 34,842 |
A failed test does not clearly change next year's odds here (33.5% against 32.8%): the difference is within the margin of error. The failure most likely to come back is road wheels — 51.5% 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 79,982 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 | 85.9 | fails less often than expected |
| Age and annual mileage | 87.1 | fails less often than vehicles driven as much |
| Share doing under 3,000 miles a year | 12.2% | a normal spread of use |
Mileage changes little here (+1.2 points): this fleet is driven about as much as the vehicles it is compared with. 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 Jaguar S-Type 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 | Jaguar S-Type | Same class, same age | Difference | Tests |
|---|---|---|---|---|
| 13 years | 32.95% | 32.63% | +0.32 pp | 3,026 |
| 14 years | 33.02% | 34.59% | -1.57 pp | 5,711 |
| 15 years | 35.81% | 36.04% | -0.23 pp | 8,185 |
| 16 years | 37.26% | 37.08% | +0.18 pp | 10,536 |
| 17 years | 37.73% | 37.46% | +0.26 pp | 11,750 |
| 18 years | 39.13% | 37.82% | +1.31 pp | 10,575 |
| 19 years | 39.5% | 37.41% | +2.09 pp | 8,914 |
| 20 years | 39.42% | 36.91% | +2.51 pp | 7,773 |
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 Jaguar S-Type perform as it gets older?
The S-Type at age 18 is well below the reference at 37.2%, against 43.9% 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: solid line: this family; dashed: all cars.
Data table
| Age | Jaguar S-Type | All vehicles | Gap |
|---|---|---|---|
| 17 | 36.7% | 43.1% | -6.4 pp |
| 18 | 37.2% | 43.9% | -6.7 pp |
| 19 | 39.2% | 43.5% | -4.3 pp |
| 20 | 38.5% | 41.0% | -2.5 pp |
Is a Jaguar S-Type ULEZ compliant?
The share of classifiable 2024 Jaguar S-Type MOT tests likely ULEZ compliant by first-registration date is 11.5%.
Based on 10,855 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 = 0 |
| 3–5 years | Suppressed — sample below publication threshold Check a registration with TfL | n = 0 |
| 6–7 years | Suppressed — sample below publication threshold Check a registration with TfL | n = 1 |
| 8 years | Suppressed — sample below publication threshold Check a registration with TfL | n = 0 |
| 9 years | Suppressed — sample below publication threshold Check a registration with TfL | n = 1 |
| 10–14 years | Suppressed — sample below publication threshold Check a registration with TfL | n = 0 |
| 15–17 years | 28.2% Check a registration with TfL | n = 1,942 |
| 18 years | 41.6% Check a registration with TfL | n = 1,683 |
| 19 years | 0.0% Check a registration with TfL | n = 1,539 |
| 20+ years | 0.0% Check a registration with TfL | n = 5,689 |
How dangerous are Jaguar S-Type MOT failures?
Major defects stand out at 100.8 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 | 37.12 | 14.22 | 2.61× |
| Major | 100.79 | 52.75 | 1.91× |
| Dangerous | 15.41 | 11.15 | 1.38× |
Chart values: Minor 37.1 · Major 100.8 · Dangerous 15.4.
Per 100 tests on this family. National average: Minor 14.2 · Major 52.8 · Dangerous 11.2 per 100.
Does the month of a Jaguar S-Type MOT matter?
Oct is highest at 38.5%; Dec is lowest at 36.2% — the gap is 2.3 percentage points.
higher = larger sharecompare shares in percentage points
Chart scale: 27%–40%.
bars: Jaguar S-Type · dashed: all class-4 cars
Month-by-month table
| Month | Jaguar S-Type | All vehicles | Gap |
|---|---|---|---|
| Jan | 37.94% | 31.12% | +6.8 pp |
| Feb | 38.43% | 29.99% | +8.4 pp |
| Mar | 37.37% | 28.26% | +9.1 pp |
| Apr | 38.31% | 29.78% | +8.5 pp |
| May | 37.58% | 28.79% | +8.8 pp |
| Jun | 36.75% | 28.15% | +8.6 pp |
| Jul | 37.68% | 29.33% | +8.4 pp |
| Aug | 37.34% | 29.2% | +8.1 pp |
| Sep | 38.25% | 28.19% | +10.1 pp |
| Oct | 38.5% | 30.34% | +8.2 pp |
| Nov | 38.09% | 30.58% | +7.5 pp |
| Dec | 36.17% | 29.33% | +6.8 pp |
Takeaway: the spread between best and worst month is 2.3 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.
Jaguar S-Type average mileage by age
At age 19, the middle half of S-Types runs from 72,359 miles to 116,553 miles, against 93,509 miles as the median.
further right = more milesmedian is the typical car; band is p25–p75
Chart axes: car age, years · odometer scale 0–126k mi.
Does high mileage mean more Jaguar S-Type MOT failures at the same age?
Within the same age group, split by odometer (2024 MOTs), so this separates wear from age: at ages 15+, 26.1% of those with under 40,000 miles failed first time versus 48.1% of those with over 140,000 miles.Inside this age group, higher mileage goes with more failures.
| Age | Odometer | % failing | 95% interval | Tests |
|---|---|---|---|---|
| 15+ | <40k miles | 26.1% | 22.6–29.8% | 564 |
| 15+ | 40-70k miles | 32.3% | 30.4–34.3% | 2,182 |
| 15+ | 70-100k miles | 38.1% | 36.5–39.6% | 3,727 |
| 15+ | 100-140k miles | 40.5% | 38.9–42.2% | 3,317 |
| 15+ | 140k+ miles | 48.1% | 45.1–51.1% | 1,052 |
line: median · band: middle half of the fleet (p25–p75)
Mileage by age (p25 / median / p75)
| Age | p25 | Median | p75 | Tests |
|---|---|---|---|---|
| 17 | 68,830 | 91,272 | 114,596 | 1,931 |
| 18 | 75,659 | 96,853 | 119,573 | 1,683 |
| 19 | 72,359 | 93,509 | 116,553 | 1,540 |
| 20+ | 67,383 | 89,523 | 112,928 | 5,697 |
A typical 19-year-old S-Type has ~93,509 miles on the clock. Much more — ask why; much less — check for gaps in the MOT history.
Where in Britain the Jaguar S-Type fails its MOT most
Aberdeen area is highest at 51.6%; Ilford area is lowest at 25.3% — the gap is 26.3 percentage points.
higher = larger sharecompare shares in percentage points
| Toughest areas | % failing | vs model overall |
|---|---|---|
| Aberdeen (AB) | 51.62% | +13.9 pp |
| Kirkcaldy (KY) | 50% | +12.3 pp |
| Falkirk (FK) | 48.89% | +11.1 pp |
| Exeter (EX) | 48.5% | +10.8 pp |
| Perth (PH) | 48.18% | +10.4 pp |
| Easiest areas | % failing | vs model overall |
|---|---|---|
| Ilford (IG) | 25.34% | -12.4 pp |
| Enfield (EN) | 26.28% | -11.5 pp |
| Slough (SL) | 27.61% | -10.1 pp |
| London E (E) | 27.69% | -10.1 pp |
| Halifax (HX) | 27.69% | -10.1 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 12.1 pp more often than in the lowest fifth (r=0.61, n=39 areas with ≥800 tests).
In areas with the highest terrain gradient this model fails 10.8 pp more often than in the lowest fifth (r=0.57, n=26 areas with ≥800 tests).
In areas with the highest urban share this model fails 12.2 pp less often than in the lowest fifth (r=-0.47, n=39 areas with ≥800 tests).
| Factor | Low Q | High Q | Gap | Correlation |
|---|---|---|---|---|
| MOT centre density | 31.5% | 43.6% | +12.1 pp | r=0.61 |
| Terrain gradient | 34.7% | 45.4% | +10.7 pp | r=0.57 |
| Urban share | 42.3% | 30.1% | -12.2 pp | r=-0.47 |
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) | 0.611 | 39 | 31.5 | 43.6 | +12.1 | 5.1 | 7.6 |
| Terrain gradient (% grade) | 0.568 | 26 | 34.7 | 45.4 | +10.8 | 0.6 | 3.2 |
| Urban share (0–1) | -0.466 | 39 | 42.3 | 30.1 | -12.2 | 0.5 | 1 |
| Income deprivation (score) | -0.354 | 37 | 36.5 | 33.1 | -3.4 | 0.1 | 0.2 |
| Distance to coast (km) | -0.315 | 39 | 39.6 | 34.6 | -5.0 | 5.4 | 90.5 |
| Road-salt proxy (g/m²-yr) | -0.094 | 39 | 39.3 | 38.0 | -1.3 | 193.4 | 409.1 |
| Frost days (days/year) | -0.058 | 39 | 41.7 | 39.6 | -2.1 | 9.1 | 23.3 |
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: 28%–47% failing.
How many miles does a Jaguar S-Type last?
100,000+ miles is highest at 41.2%; 200,000+ miles is lowest at 0.7% — the gap is 40.4 percentage points.
higher = larger sharecompare shares in percentage points
| Odometer | Tests ≥ threshold | Share of sample |
|---|---|---|
| 100,000+ miles | 33,101 | 41.18% |
| 150,000+ miles | 5,262 | 6.55% |
| 200,000+ miles | 592 | 0.74% |
Of 80,375 tests of this family with a usable odometer in 2024, 41.2% had reached 100k miles, 6.5% had reached 150k miles, 0.7% had reached 200k miles. This is a cross-section of cars still presenting for MOT, not a full birth cohort.
Jaguar S-Type faults that come together
Body & structure + Road Wheels stand out at 4.45×, against 1.00× if the faults were independent.
above 1.0× = more than expectedbelow 1.0× = less
| Group A | Group B | Together | Lift |
|---|---|---|---|
| Body, chassis, structure | Road Wheels | 62 | 4.45× (rough estimate) |
| Road Wheels | Seat belts and supplementary restraint systems | 42 | 4.15× (rough estimate) |
| Identification of the vehicle | Noise, emissions and leaks | 71 | 4.13× (rough estimate) |
| Noise, emissions and leaks | Road Wheels | 69 | 4.11× (rough estimate) |
| Road Wheels | Tyres | 92 | 3.91× (rough estimate) |
| Lamps, reflectors and electrical equipment | Road Wheels | 182 | 3.65× (rough estimate) |
| Body, chassis, structure | Noise, emissions and leaks | 525 | 3.61× |
| Brakes | Noise, emissions and leaks | 1,645 | 3.54× |
| Body, chassis, structure | Identification of the vehicle | 48 | 3.37× (rough estimate) |
| Identification of the vehicle | Visibility | 103 | 3.35× (rough estimate) |
| Identification of the vehicle | Lamps, reflectors and electrical equipment | 170 | 3.34× (rough estimate) |
| Noise, emissions and leaks | Seat belts and supplementary restraint systems | 349 | 3.3× (rough estimate) |
| Identification of the vehicle | Seat belts and supplementary restraint systems | 34 | 3.29× (rough estimate) |
| Identification of the vehicle | Tyres | 76 | 3.16× (rough estimate) |
| Body, chassis, structure | Seat belts and supplementary restraint systems | 275 | 3.14× (rough estimate) |
| Brakes | Road Wheels | 138 | 3.1× (rough estimate) |
| Body, chassis, structure | Brakes | 1,189 | 3.09× |
| Lamps, reflectors and electrical equipment | Noise, emissions and leaks | 1,590 | 3.05× |
| Brakes | Seat belts and supplementary restraint systems | 826 | 2.95× |
| Brakes | Identification of the vehicle | 128 | 2.82× (rough estimate) |
| Lamps, reflectors and electrical equipment | Seat belts and supplementary restraint systems | 859 | 2.74× |
| Road Wheels | Visibility | 82 | 2.72× (rough estimate) |
| Noise, emissions and leaks | Tyres | 662 | 2.69× |
| Body, chassis, structure | Lamps, reflectors and electrical equipment | 1,130 | 2.62× |
| Noise, emissions and leaks | Visibility | 821 | 2.61× |
| Lamps, reflectors and electrical equipment | Visibility | 2,424 | 2.6× |
| Seat belts and supplementary restraint systems | Visibility | 488 | 2.58× (rough estimate) |
| Brakes | Lamps, reflectors and electrical equipment | 3,547 | 2.57× |
| Lamps, reflectors and electrical equipment | Tyres | 1,862 | 2.55× |
| Brakes | Tyres | 1,655 | 2.54× |
| Body, chassis, structure | Tyres | 501 | 2.46× |
| Seat belts and supplementary restraint systems | Tyres | 363 | 2.45× (rough estimate) |
| Seat belts and supplementary restraint systems | Suspension | 1,339 | 2.35× |
| Brakes | Visibility | 1,942 | 2.33× |
| Tyres | Visibility | 1,027 | 2.33× |
| Body, chassis, structure | Visibility | 592 | 2.27× |
| Steering | Suspension | 4,015 | 2.26× |
| Identification of the vehicle | Suspension | 206 | 2.22× (rough estimate) |
| Identification of the vehicle | Steering | 66 | 2.05× (rough estimate) |
| Road Wheels | Suspension | 185 | 2.04× (rough estimate) |
| Noise, emissions and leaks | Suspension | 1,887 | 1.99× |
| Brakes | Suspension | 4,971 | 1.98× |
| Body, chassis, structure | Suspension | 1,527 | 1.95× |
| Lamps, reflectors and electrical equipment | Suspension | 5,452 | 1.94× |
| Noise, emissions and leaks | Steering | 635 | 1.93× |
| Lamps, reflectors and electrical equipment | Steering | 1,823 | 1.87× |
| Road Wheels | Steering | 58 | 1.84× (rough estimate) |
| Brakes | Steering | 1,592 | 1.83× |
| Suspension | Tyres | 2,400 | 1.81× |
| Steering | Visibility | 1,050 | 1.78× |
| Suspension | Visibility | 2,989 | 1.76× |
| Steering | Tyres | 796 | 1.73× |
| Body, chassis, structure | Steering | 470 | 1.72× (rough estimate) |
| Seat belts and supplementary restraint systems | Steering | 326 | 1.64× (rough estimate) |
| Noise, emissions and leaks | Speedometer and speed limiter | 5 | too few (rough estimate) |
| Lamps, reflectors and electrical equipment | Speedometer and speed limiter | 5 | too few (rough estimate) |
| Identification of the vehicle | Road Wheels | 5 | too few (rough estimate) |
Defects in «Body, chassis, structure» and «Noise, emissions and leaks» appear together 3.61× more often than chance (525 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 Jaguar S-Type?
Cars driven under 5,000 miles a year is well below the reference at 25.3%, against 38.7% for cars driven 8,000–12,000 miles a year.
higher = larger sharecompare shares in percentage points
| Band | Fail % | Tests |
|---|---|---|
| <5k miles/year | 25.27% | 2,177 |
| 8–12k miles/year | 38.66% | 2,325 |
| Gap (low − normal) | -13.39 pp | — |
By fuel and age
Diesel
| Age | Low-use fail % | n | Normal fail % | n | Gap pp |
|---|---|---|---|---|---|
| 13 | 26.67 | 495 | 38.34 | 725 | -11.68 pp |
| 14 | 26.72 | 842 | 38.56 | 1,154 | -11.84 pp |
Petrol
| Age | Low-use fail % | n | Normal fail % | n | Gap pp |
|---|---|---|---|---|---|
| 13 | 22.35 | 255 | 36.67 | 150 | -14.31 pp |
| 14 | 23.29 | 584 | 40.34 | 295 | -17.05 pp |
At matched ages 5–14, cars averaging under 5k miles/year fail at 25.3% vs 38.7% for 8–12k miles/year — 13.4 pp lower (n_low=2,177, n_normal=2,325). 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: 26.7% low-use vs 38.6% normal (-11.8 pp).
Best year for a Jaguar S-Type, and the years to avoid
Build year 2001 is highest at 107.0; Build year 2006 is lowest at 98.4 — the gap is 8.6 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 |
|---|---|---|---|---|---|
| 2007 | 99.1 | 96.1–102.1 | 34.16% | 12,566 | no different |
| 2006 | 98.4 | 95.4–101.4 | 35.11% | 11,481 | no different |
| 2005 | 104.1 | 101–107.1 | 38.56% | 11,343 | worse |
| 2004 | 98.9 | 96.1–101.8 | 37.45% | 12,270 | no different |
| 2003 | 100.9 | 97.7–104.1 | 38.83% | 9,913 | no different |
| 2002 | 105.3 | 101.7–108.9 | 41.03% | 7,956 | worse |
| 2001 | 107 | 102.3–111.7 | 42.01% | 4,777 | worse |
| 2000 | 101.6 | 96.5–106.7 | 40.15% | 3,783 | no different |
| 1999 | 102.5 | 95.1–110 | 41.16% | 1,764 | no different |
The best build year here is 2005 and the weakest is 2001. 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 — 3 of 9 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.
Jaguar S-Type MOT repair costs
The MOT-failure repair budget per test runs from £176.78 to £335.88, 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 | 56.2 (nat. 15.36) | Suspension coil spring (single corner) | £180 | £101.16 |
| Brakes | 23.0 (nat. 11.25) | Front brake pads (parts + labour, typical hatchback) | £150 | £34.50 |
| Lamps, reflectors and electrical equipment | 23.2 (nat. 18.09) | Battery replacement (standard 12V lead-acid) | £140 | £32.48 |
| Tyres | 9.6 (nat. 8.7) | Tyre (single mid-range 16" fitted) | £90 | £8.64 |
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 £177 to £336, 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.
Jaguar S-Type running costs for a fleet
Vehicles failing at age 19 stand out at 39.0%, against 37.0% at age 17, 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 |
|---|---|---|---|---|
| 17 | 36.72% | 91,272 | 1,931 | — |
| 18 | 37.2% | 96,853 | 1,683 | — |
| 19 | 39.22% | 93,509 | 1,540 | — |
No single year stands out as the point where this model starts costing more: the year-to-year steps in its failure rate are too small or rest on too few tests to name one (D1 rule: a step is named only with at least 2,000 tests on both sides and a jump above 3 percentage points).
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.
Jaguar S-Type rust problems: where they corrode
Age-standardised corrosion susceptibility stands out at 3.22×, against 1.00× for the national age-standardised rate.
above 1.0× = rusts more than averagebelow 1.0× = rusts less
This Jaguar S-Type fails on corrosion far more often than average once age is held constant, and its owners live in areas that are gentler than most for the models we publish. Those two point in opposite directions, which is the informative case: it rusts more than average despite living in gentler places, so the cause is the car, not the postcode.
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 Jaguar S-Type advisory become a failure?
Suspension is highest at 32.9%; Non-component advisories are lowest at 0.0% — the gap is 32.9 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 |
|---|---|---|---|---|
| Suspension | 32.9% | 12 months | 2,258 | 14,543 |
| Lamps, reflectors and electrical equipment | 24.2% | 12 months | 2,688 | 1,838 |
| Steering | 18.3% | 12 months | 2,321 | 1,515 |
| Brakes | 16.8% | 12 months | 2,180 | 16,436 |
| Tyres | 10.9% | 12.1 months | 2,985 | 12,771 |
| Body, chassis, structure | 10.2% | 12 months | 2,424 | 2,776 |
| Noise, emissions and leaks | 8.6% | 12.1 months | 2,594 | 5,883 |
| Identification of the vehicle | 3.8% | 12.1 months | 2,883 | 1,667 |
| Road wheels | 0.9% | 11.9 months | 996 | 577 |
| Non-component advisories | 0.0% | — | — | 2,349 |
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 33 in 100 cars, and the median gap is 12 months and roughly 2,258 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 Jaguar S-Type?
Suspension after a advisory at age 20+ is highest at 34.8%; Brakes after a passed at age 12-14 are lowest at 7.2% — the gap is 27.6 percentage points.
higher = more likelypercentage is the observed transition probability
| Age | Last test | Most likely next failures | Cars tracked |
|---|---|---|---|
| 12-14 | passed | Suspension 14.4% · Lamps, reflectors and electrical equipment 8.6% · Brakes 7.2% | 4,380 |
| 12-14 | advisory | Suspension 21.0% · Lamps, reflectors and electrical equipment 11.2% · Brakes 10.1% | 3,371 |
| 12-14 | failure | Suspension 20.6% · Lamps, reflectors and electrical equipment 15.4% · Brakes 12.3% | 3,679 |
| 15-19 | passed | Suspension 20.1% · Lamps, reflectors and electrical equipment 8.7% · Steering 7.8% | 11,986 |
| 15-19 | advisory | Suspension 29.8% · Lamps, reflectors and electrical equipment 14.5% · Brakes 12.4% | 11,437 |
| 15-19 | failure | Suspension 27.9% · Lamps, reflectors and electrical equipment 18.1% · Brakes 14.2% | 13,649 |
| 20+ | passed | Suspension 23.0% · Steering 10.3% · Lamps, reflectors and electrical equipment 8.3% | 3,085 |
| 20+ | advisory | Suspension 34.8% · Lamps, reflectors and electrical equipment 15.0% · Steering 14.6% | 3,159 |
| 20+ | failure | Suspension 34.7% · Lamps, reflectors and electrical equipment 18.6% · Brakes 17.2% | 3,927 |
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.
Jaguar S-Type ownership: what six years of MOTs show
The ten-day re-test pass rate is highest at 69.3%; The later re-test pass rate is lowest at 8.6% — the gap is 60.8 percentage points.
higher = larger sharecompare shares in percentage points
Failing is usually a same-week event, not a disaster. Of 19,332 failures followed through to their re-test, 22.12% were repaired and passed the same day and 69.32% within ten days; the median gap is 2 days. 58,703 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 1.159 failures per 10,000 miles, on a median of 2,168 miles a year across 18,588 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. 24.53% of these cars strung together three or more tests with nothing recorded at all, while 36.25% 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: 1.977% of 18,665 chains show a reading lower than the previous test, with a median drop of 41,858 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.
Jaguar S-Type safety recalls and how to check yours
DVSA recall campaigns stand out at 7.
bigger number = more recorded casescompare like-for-like scope, not sample size alone
recall campaigns launched per year
| Reference | Launched | Vehicles | Concern |
|---|---|---|---|
R/2007/045 | 23/04/2007 | 8,028 | DIESEL PARTICULATE FILTER EXCESSIVE HEAT |
R/2005/155 | 30/11/2005 | 109 | THE PARKING FUNCTION OF THE AUTOMATIC TRANSMISSION MAY NOT OPERATE CORRECTLY |
R/2004/156 | 06/10/2004 | 2,055 | POOR ADHESION OF SPACE SAVER SPARE WHEEL SPEED RESTRICTION LABEL |
R/2004/164 | 06/10/2004 | 4 | POSSIBILE UNINTENTIONAL APPLICATION OF PARKING BRAKE |
R/2004/003 | 02/03/2004 | 13,911 | AUTO GEARBOX MAY ENGAGE REVERSE WHEN IN FORWARD DRIVE. |
All 7 campaigns
| Reference | Launched | Build dates | Vehicles | Concern |
|---|---|---|---|---|
R/2007/045 | 23/04/2007 | 01/09/2004 – 31/03/2007 | 8,028 | DIESEL PARTICULATE FILTER EXCESSIVE HEAT |
R/2005/155 | 30/11/2005 | 109 | THE PARKING FUNCTION OF THE AUTOMATIC TRANSMISSION MAY NOT OPERATE CORRECTLY | |
R/2004/156 | 06/10/2004 | 02/03/2004 – 31/03/2004 | 2,055 | POOR ADHESION OF SPACE SAVER SPARE WHEEL SPEED RESTRICTION LABEL |
R/2004/164 | 06/10/2004 | 11/11/2002 – 22/12/2003 | 4 | POSSIBILE UNINTENTIONAL APPLICATION OF PARKING BRAKE |
R/2004/003 | 02/03/2004 | 01/07/2001 – 30/06/2003 | 13,911 | AUTO GEARBOX MAY ENGAGE REVERSE WHEN IN FORWARD DRIVE. |
R/2000/119 | 23/11/2000 | 01/01/1999 – 30/09/2000 | 18,062 | FRONT LOWER SUSPENSION BALL JOINT MAY FAIL |
R/2000/089 | 04/10/2000 | 01/05/2000 – 30/07/2000 | 2,104 | SEAT BELT BUCKLE CONCERN |
DVSA lists 7 safety recall campaigns for the Jaguar S-Type, covering roughly 44,273 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.
Jaguar S-Type MOT: quick answers
Jaguar S-Type MOT Risk Index is well below the reference at 91.0, 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 Jaguar S-Type first-time MOT pass rate?
- 61.87% of first attempts passed in 2024 (11,255 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 38.13% figure is the first-time initial failure rate, using 11,255 primary tests as the denominator (first-time, excluding retests). The age-adjusted MOT initial-failure ratio 91.0 is shown separately because raw rates compare fleet age as well as cars.
Compare the Jaguar S-Type with other cars
Jaguar S-Type is highest at 91.0; Toyota C-HR is lowest at 90.6 — the gap is 0.4 points.
below 100 is betterabove 100 is worse100 = normal for this model at that age
Same brand
All Jaguar MOT statisticsJaguar XE MOT statsJaguar F-Pace MOT stats
Similar risk
Jaguar XE (index 90.8)Toyota C-HR (index 90.6)Toyota Verso (index 90.6)
Same size class
how Mitsubishi Mirage compareshow Jeep Compass compareshow Kia Optima compares
By build year
Jaguar S-Type 1999Jaguar S-Type 2000Jaguar S-Type 2001Jaguar S-Type 2002Jaguar S-Type 2003Jaguar S-Type 2004Jaguar S-Type 2005Jaguar S-Type 2006Jaguar S-Type 2007
By area
Jaguar S-Type MOT failure rate by postcode area
By failure group
Jaguar S-Type body, chassis and structure failuresJaguar S-Type brakes failuresJaguar S-Type vehicle identification failuresJaguar S-Type lamps, reflectors and electrics failuresJaguar S-Type noise, emissions and leaks failuresJaguar S-Type road wheels failuresJaguar S-Type seat belts and airbags failuresJaguar S-Type steering failuresJaguar S-Type suspension failuresJaguar S-Type tyres failuresJaguar S-Type visibility failures
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:jaguar-s-type:dvsa-2024-v2. Full method: methodology.
Cite: MOT Risk Index (2026). Jaguar S-Type MOT statistics 2024 (data release dvsa-2024-v2; downloadable dataset motriskindex-families-2024-v5, doi:10.5281/zenodo.22975051). https://motriskindex.co.uk/cars/jaguar-s-type/ · Published 2026-07-30.