MOT Risk Index.co.uk

Audi A1 — MOT statistics 2024

The Audi A1 failed 20.41% of 386,496 first MOT attempts in 2024 ("first-time", excluding retests). Adjusted for the age of the fleet, its initial-failure ratio is 91.3 (100 = expected for its age profile). This car fails its MOT about 9% less often than expected for its age.

MOT risk index 91.3, 95% CI 90.7–91.9 (100 = national average) 100 91.3 60 160
Index
91.3
100 = age-normal
Raw fail rate
20.41%
n = 386,496
Dangerous /100
14
national ≈13
Diesel − petrol
+10.9 pp
fail-rate gap
Rank
18 of 56
lower index = better

Age-adjusted peer: Ford Kuga (index 91.3) — the two published results are 0.0 index points apart.

Audi A1 common problems: what actually fails the MOT

Lamps, reflectors and electrical equipment stand out at 9.2 per 100 tests, against 23.5 per 100 tests nationally.

higher bar = fails more oftenrate per 100 tests

Audi A1 common problems: what actually fails the MOT — 2024 UK MOT data

family vs national — top component groups, per 100 tests. Legend: This family · National avg.

Component-group comparison table
GroupThis familyNationalFamily / national
Suspension15.619.90.78×
Tyres12.110.31.18×
Visibility9.712.00.81×
Brakes9.214.30.64×
Lamps & electrical9.223.50.39×
Body & structure5.28.40.62×
Named defects — items per 100 initial tests, this family vs UK national average, 2024
What failedper 100 tests (this family)per 100 tests (UK average)ratio family / UKWhat to check
Tyre seriously damagedA tyre seriously damaged4.293.291.30×Check tyre tread depth across the full width
Windscreen or window damaged or seriously…Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view5.194.271.21×Check wipers, washers and windscreen chips in the driver's view
Tyre tread depth not in accordance with the…Tyre tread depth not in accordance with the requirements4.533.821.18×Check tyre tread depth across the full width
Steering rack gaiter or ball joint dust cover…Steering rack gaiter or ball joint dust cover damaged or deteriorated2.271.671.36×Ask the seller about: Steering rack gaiter or ball joint dust cover damaged or det
Brake lining or pad worn below 1.5mma brake lining or pad worn below 1.5mm2.982.451.22×Feel for brake judder and pulling on the test drive
Spring or spring component fractured or seriously…A spring or spring component fractured or seriously weakened3.182.721.17×Ask the seller about: A spring or spring component fractured or seriously weakened
Suspension pin, bush or joint excessively wornA suspension pin, bush or joint excessively worn6.326.031.05×Listen for knocks over bumps — worn suspension joints are common
Transmission shaft constant velocity joint boot…A transmission shaft constant velocity joint boot severely deteriorated2.852.701.06×Ask the seller about: A transmission shaft constant velocity joint boot severely d
Suspension joint dust cover missing or no longer…A suspension joint dust cover missing or no longer prevents the ingress of dirt etc2.102.250.93×Listen for knocks over bumps — worn suspension joints are common
Suspension joint dust cover severely deterioratedA suspension joint dust cover severely deteriorated2.213.450.64×Listen for knocks over bumps — worn suspension joints are common

Named defects ranked by how much more often they appear than the national average — not by raw rate.

Audi A1 MOT advisories: what gets flagged

Tyres are highest at 92.3 per 100 tests; Emissions & leaks are lowest at 3.2 per 100 tests — the gap is 89.1 per 100 tests.

higher bar = flagged more oftenadvisory items per 100 initial tests

Audi A1 MOT advisories: what gets flagged — 2024 UK MOT data
Advisory rates table
GroupAdvisories per 100
Tyres92.3
Brakes68
Suspension35.9
Non-component advisories9.8
Identification3.3
Emissions & leaks3.2

Advisories are wear the tester noted but didn't fail — what will need money soon.

How does the Audi A1 perform as it gets older?

At age 14 stands out at 33.0%, against 38.6% for all cars of the same age.

higher = larger sharecompare shares in percentage points

How does the Audi A1 perform as it gets older? — 2024 UK MOT data

Chart axes: car age, years · failure-rate scale 0–46%.

Takeaway: a 10-year-old A1 has roughly a 24% chance of failing its MOT; from about age 6 it stays above the national age curve.

Data table
AgeAudi A1All carsGap
38.9%10.9%-1.9 pp
49.7%11.6%-1.9 pp
511.2%13.5%-2.2 pp
616.5%15.6%+0.9 pp
719.5%18.2%+1.3 pp
821.4%21.3%+0.2 pp
921.8%24.4%-2.6 pp
1024.5%27.7%-3.3 pp
1127.5%30.6%-3.0 pp
1228.5%33.4%-4.9 pp
1331.7%36.0%-4.3 pp
1433.0%38.6%-5.6 pp

Is an Audi A1 ULEZ compliant?

The share of classifiable 2024 Audi A1 MOT tests likely ULEZ compliant by first-registration date is 83.4%.

Based on 386,490 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

Age-band estimate from classifiable initial MOT tests
Vehicle age at testLikely ULEZ-compliant shareTests
Under 3 years100.0%
Check a registration with TfL
n = 1,403
3–5 years100.0%
Check a registration with TfL
n = 92,720
6–7 years100.0%
Check a registration with TfL
n = 70,511
8 years100.0%
Check a registration with TfL
n = 42,081
9 years79.4%
Check a registration with TfL
n = 39,429
10–14 years60.0%
Check a registration with TfL
n = 140,343
15–17 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 3
18 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
19 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0
20+ yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0

Audi A1 petrol vs diesel: which ages best

Diesel is highest at 28.9%; Petrol is lowest at 18.0% — the gap is 10.9 percentage points.

higher = larger sharecompare shares in percentage points

Audi A1 petrol vs diesel: which ages best — 2024 UK MOT data
Fuel split table
FuelTests% failingGap vs best
Petrol301,48618.0%+0.0 pp
Diesel84,99828.9%+10.9 pp

Chart sample sizes: n=301k · n=85k.

How dangerous are Audi A1 MOT failures?

Major defects stand out at 37.2 per 100 tests, against 63.3 per 100 tests nationally.

higher bar = fails more oftenrate per 100 tests

How dangerous are Audi A1 MOT failures? — 2024 UK MOT data
Severity table
SeverityThis family /100National /100Family / national
Minor17.6524.380.72×
Major37.2463.260.59×
Dangerous13.9712.891.08×

Chart values: Minor 17.6 · Major 37.2 · Dangerous 14.0.

Per 100 tests on this family. National average: Minor 24.4 · Major 63.3 · Dangerous 12.9 per 100.

Does the month of an Audi A1 MOT matter?

Nov is highest at 22.7%; May is lowest at 19.1% — the gap is 3.6 percentage points.

higher = larger sharecompare shares in percentage points

Does the month of an Audi A1 MOT matter? — 2024 UK MOT data

Chart scale: 18%–29%.

bars: Audi A1 · dashed: all class-4 cars

Month-by-month table
MonthAudi A1All carsGap
Jan20.81%27.37%-6.6 pp
Feb19.23%26.14%-6.9 pp
Mar19.22%24.75%-5.5 pp
Apr20.33%26.01%-5.7 pp
May19.14%25.01%-5.9 pp
Jun19.61%25.01%-5.4 pp
Jul20.16%26.04%-5.9 pp
Aug20.55%25.79%-5.2 pp
Sep21.04%25.19%-4.2 pp
Oct21.47%27.13%-5.7 pp
Nov22.72%27.2%-4.5 pp
Dec20.79%26.29%-5.5 pp

Takeaway: the spread between best and worst month is 3.6 percentage points — noticeable seasonality. 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 19.5% of these cars were first registered in March with another17% in September — 37% 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. Peaks here mark when cars are tested, not when they are worse.

Audi A1 average mileage by age

At age 8, the middle half of A1s runs from 41,831 miles to 69,743 miles, against 55,249 miles as the median.

further right = more milesmedian is the typical car; band is p25–p75

Bars: Audi A1 · dashed: all class-4 cars — 2024 UK MOT data

Chart axes: car age, years · odometer scale 0–126k mi.

Does high mileage mean more Audi A1 MOT failures?

Same age band (6–14 years), split by odometer — this separates wear from age: 11.2% of the lowest-mileage cars failed versus 34.5% of the highest.

Does high mileage mean more Audi A1 MOT failures? — 2024 UK MOT data
Odometer% failingTestsGap vs lowest-mileage band
<40k miles11.2%130,415+0.0 pp
40-70k miles20.3%131,351+9.1 pp
70-100k miles28.1%80,309+16.9 pp
100-140k miles34%37,754+22.8 pp
140k+ miles34.5%6,525+23.3 pp

line: median · band: middle half of the fleet (p25–p75)

Mileage by age (p25 / median / p75)
Agep25Medianp75Tests
315,24921,96529,76129,426
419,00526,89936,04926,889
524,64833,57244,11036,405
628,96539,07951,18532,713
734,97347,08560,02337,798
841,83155,24969,74342,081
948,05963,53980,41739,429
1053,35770,44788,70538,514
1158,59477,73797,24937,837
1265,82786,927107,95932,227
1374,32494,568115,15229,284
1479,899100,923119,8142,487

A typical 8-year-old A1 has ~55,249 miles on the clock. Much more — ask why; much less — check for gaps in the MOT history.

Where in Britain the Audi A1 fails its MOT most

Kirkcaldy area is highest at 29.0%; Romford area is lowest at 13.3% — the gap is 15.8 percentage points.

higher = larger sharecompare shares in percentage points

Audi A1 line: median · band: middle half of the fleet (p25–p75) — 2024 UK MOT data
Toughest areas% failingvs model overall
Kirkcaldy (KY)29.01%+8.6 pp
Lincoln (LN)26.11%+5.7 pp
Darlington (DL)25.72%+5.3 pp
Exeter (EX)25.37%+5.0 pp
Durham (DH)25.17%+4.8 pp
Easiest areas% failingvs model overall
Romford (RM)13.25%-7.2 pp
Southend-on-Sea (SS)15.07%-5.3 pp
Kingston upon Thames (KT)15.81%-4.6 pp
Croydon (CR)15.9%-4.5 pp
Dartford (DA)15.9%-4.5 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 4.2 pp more often than in the lowest fifth (r=0.50, n=112 areas with ≥800 tests).

In areas with the highest urban share this model fails 3.6 pp less often than in the lowest fifth (r=-0.38, n=112 areas with ≥800 tests).

In areas with the highest frost days this model fails 1.5 pp more often than in the lowest fifth (r=0.25, n=112 areas with ≥800 tests).

Audi A1 Why do areas differ? — 2024 UK MOT data
Values shown in the quintile chart
FactorLow QHigh QGapCorrelation
MOT centre density17.5%21.6%+4.1 ppr=0.50
Urban share21.6%18.0%-3.6 ppr=-0.38
Frost days19.9%21.3%+1.4 ppr=0.25

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 area indicators, each tested against a defect rate we measure
CompositeBuilt fromTested againstrVerdict
Underbody corrosionfrost days × salt load ÷ (distance to coast + 1)share of tests with a corrosion defect+0.42holds (116 areas)
Tyre wearrain days × annual miles ÷ age at first tyre advisoryshare of tests failing on tyres+0.45holds (116 areas)
Overnight corrosionterraced housing × cars per household × frost daysshare with a corrosion defect+0.41holds (102 areas) — and adds signal beyond the first index
Deferred maintenancedeprivation × advisory-to-failure conversion ÷ labour ratecars repeating the same advisory−0.26fails (118 areas)
Powertrain stressengine capacity ÷ kerb weightsuspension, brake and emissions failures−0.16fails (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)
Factorrn areasLow-Q fail %High-Q fail %Gap ppLow-Q factorHigh-Q factor
MOT centre density (per 10k vehicles)0.50111217.521.6+4.258.5
Urban share (0–1)-0.37711221.618.0-3.60.41
Frost days (days/year)0.25011219.921.3+1.511.638
Distance to coast (km)-0.24111221.519.9-1.56.279.5
Road-salt proxy (g/m²-yr)0.22211219.021.2+2.3221.2670.1
Terrain gradient (% grade)0.1876720.622.3+1.70.53.7
Income deprivation (score)0.1339618.820.0+1.20.10.2

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: 16%–25% failing.

Audi A1 survival: which cars are still on the road

By age 14 stands out at 7.8%, against 100% at the ages 4–6 reference level.

higher = larger sharecompare shares in percentage points

Audi A1 survival: which cars are still on the road — 2024 UK MOT data

Chart axes: car age, years · survival vs ages 4–6 · scale 0–105%.

Survival vs fail rate by age
AgeTestsSurvival vs ages 4–6Fail %
329,42691.9%8.95%
426,88984%9.7%
536,405100%11.23%
632,713100%16.49%
737,798100%19.48%
842,081100%21.44%
939,429100%21.76%
1038,514100%24.46%
1137,837100%27.54%
1232,227100%28.53%
1329,28491.5%31.71%
142,4877.8%32.97%

By age 14, only about 8% as many cars of this family present for MOT as at ages 4–6 (reference n≈32,002); survivors still fail at 33.0% vs 9.7% at age 4. Older cars that still appear are a selected subset — weaker ones have already left.

How many miles does an Audi A1 last?

100,000+ miles is highest at 11.5%; 150,000+ miles is lowest at 1.0% — the gap is 10.5 percentage points.

higher = larger sharecompare shares in percentage points

OdometerTests ≥ thresholdShare of sample
100,000+ miles44,27911.46%
150,000+ miles3,7520.97%

Of 386,354 tests of this family with a usable odometer in 2024, 11.5% had reached 100k miles, 1.0% had reached 150k miles. This is a cross-section of cars still presenting for MOT, not a full birth cohort.

How many years is an Audi A1 likely to last?

Bought at age 5 is highest at 8.5 years; Bought at age 12 is lowest at 1.5 years — the gap is 7 years.

bigger number = longer remaining lifeyears on the observed survival curve

Age nowTypical mileage (p50)Expected years left
533,5728.5
855,2495.5
1070,4473.5
1286,9271.5

estimateEstimate only — not a warranty: a typical 10-year-old example of this family (~70,447 miles median) has about 3.5 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.

Audi A1 faults that come together

Lamps & electrical + Seatbelts & SRS stand out at 18.14×, against if the faults were independent.

above 1.0× = more than expectedbelow 1.0× = less

Group AGroup BTogetherLift
Lamps, reflectors and electrical equipmentSeat belts and supplementary restraint systems64118.14×
Body, chassis, structureNoise, emissions and leaks59211.45×
Lamps, reflectors and electrical equipmentNoise, emissions and leaks6698.25×
Body, chassis, structureLamps, reflectors and electrical equipment1,1317.44×
BrakesNoise, emissions and leaks5566.47×
BrakesLamps, reflectors and electrical equipment1,5626.19×
Lamps, reflectors and electrical equipmentVisibility1,5406.09×
Body, chassis, structureSuspension1,8655.86×

Defects in «Lamps, reflectors and electrical equipment» and «Seat belts and supplementary restraint systems» appear together 18.14× more often than chance (641 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. Thresholds: lift ≥ 1.3, co-occurrences ≥ 300.

Is low mileage better for an Audi A1?

Cars driven under 5,000 miles a year stands out at 14.6%, against 25.9% for cars driven 8,000–12,000 miles a year.

higher = larger sharecompare shares in percentage points

BandFail %Tests
<5k miles/year14.61%72,123
8–12k miles/year25.92%97,219
Gap (low − normal)-11.31 pp
By fuel and age

Diesel

AgeLow-use fail %nNormal fail %nGap pp
815.4280428.023,965-12.6 pp
917.261,15327.935,936-10.67 pp
1018.7392930.036,048-11.3 pp
1123.231,13232.167,179-8.93 pp
1224.2893933.787,004-9.5 pp
1326.0955235.996,238-9.9 pp

Petrol

AgeLow-use fail %nNormal fail %nGap pp
57.569,38613.759,684-6.19 pp
611.618,68020.027,663-8.41 pp
713.549,00522.728,273-9.19 pp
813.918,48125.468,150-11.55 pp
914.366,97625.576,280-11.21 pp
1016.937,14626.955,795-10.02 pp
1117.856,690344,556-16.15 pp
1217.665,21634.713,815-17.05 pp
1319.384,39738.724,052-19.34 pp

At matched ages 5–14, cars averaging under 5k miles/year fail at 14.6% vs 25.9% for 8–12k miles/year — 11.3 pp lower (n_low=72,123, n_normal=97,219). 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: 20.6% low-use vs 31.0% normal (-10.4 pp).

Which Audi A1 engine is best?

diesel 1.5–1.8 is highest at 113.8; petrol 1.8–2.0 is lowest at 64.2 — the gap is 49.6 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Engine bands against this model's own failure rate at the same ages
FuelCapacityvs own age normRaw fail %Tests
petrol1.8–2.0 litre64.211.24%9,125
petrol1.2–1.5 litre92.720.42%167,168
diesel1.8–2.0 litre95.725.75%5,263
petrol1.0–1.2 litre99.927.62%17,044
petrolunder 1.0 litre103.813.33%107,986
diesel1.5–1.8 litre113.829.11%79,582

Splitting this model by fuel alone hides the thing that actually differs. Within the same badge, the diesel 1.5–1.8 runs at 113.8 against this model's own age norm while the petrol 1.8–2.0 runs at 64.2 — a spread of 49.6 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 5,000 tests are not shown.

Best year for an Audi A1, and the years to avoid

Build year 2010 is highest at 110.1; Build year 2019 is lowest at 93.9 — the gap is 16.2 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

Audi A1 build year vs the same model at the same age · 100 = as expected — 2024 UK MOT data
Audi A1 by build year, tests 2019–2024. Below 100 is better than the model's own age norm.
Every build year with its confidence interval
Build yearvs own age norm95% CIRaw fail %TestsVerdict
202095.892.8–98.89.7%40,419better
201993.991.8–95.910.62%77,948better
2018104102.2–105.813.48%93,337worse
2017102.9101.5–104.314.68%136,764worse
2016102.6101.4–103.816.39%171,558worse
20159492.9–95.117.36%159,675better
201497.496.3–98.520.59%154,549better
2013102.8101.7–103.824.48%150,272worse
2012103.4102.3–104.526.88%126,087worse
2011108.7107.5–109.830.31%113,105worse
2010110.1106.3–113.932.55%9,855worse

The best build year here is 2019 and the weakest is 2010. 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 — 11 of 11 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.

Audi A1 MOT repair costs

The MOT-failure repair budget per test runs from £65.65 to £124.73, against £54.85 for the test itself.

bigger number = costs morepounds per test, MOT-failing faults only

MOT repairs, budget
£66–125
per test, repairs only
The test itself
£54.85
statutory cap, unchanged since 2010
How the figure is built: chance of failing × typical price of that repair
ComponentFails per 100 testsTypical repairIts priceContribution
Suspension15.6 (nat. 19.9)Suspension coil spring (single corner)£180£28.08
Brakes9.2 (nat. 14.34)Front brake pads (parts + labour, typical hatchback)£150£13.80
Lamps, reflectors and electrical equipment9.2 (nat. 23.52)Battery replacement (standard 12V lead-acid)£140£12.88
Tyres12.1 (nat. 10.27)Tyre (single mid-range 16" fitted)£90£10.89

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 £66 to £125, 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.

Audi A1 running costs for a fleet

Vehicles failing at age 10 stand out at 24%, against 11% at age 5 in the same 100-vehicle fleet.

higher = larger sharecompare shares in percentage points

Fails per 100 at age 5
11
vehicles needing work
At age 10
24
same fleet, five years on
Repairs per 100
£6,565
plus £5,485 in test fees
Off the road
1d
median; 49.14% cleared same day
Failure rate and typical odometer by age
AgeFailsMedian odometerTestsGap vs age 5
38.95%21,96529,426-2.3 pp
49.7%26,89926,889-1.5 pp
511.23%33,57236,405+0.0 pp
616.49%39,07932,713+5.3 pp
719.48%47,08537,798+8.3 pp
821.44%55,24942,081+10.2 pp
921.76%63,53939,429+10.5 pp
1024.46%70,44738,514+13.2 pp
1127.54%77,73737,837+16.3 pp
1228.53%86,92732,227+17.3 pp
1331.71%94,56829,284+20.5 pp
1432.97%100,9232,487+21.7 pp

The number a fleet manager needs is not the failure rate, it is the year the car starts costing more. Between age 5 and 6 the failure rate of this model jumps by 5.26 percentage points — the steepest single step in its life, and the 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.

Audi A1 rust problems: where they corrode

Age-standardised corrosion susceptibility stands out at <0.1×, against for the national age-standardised rate.

above 1.0× = rusts more than averagebelow 1.0× = rusts less

How it rusts
<0.1×
0.08% of tests record a corrosion defect vs 0.94% typical — age-standardised
Salt Belt exposure
84th
percentile among the models published here, from its tests across 112 postcode areas

This Audi A1 virtually never fails on corrosion once age is held constant, and its owners live in areas that are saltier than most for the models we publish. Both point the same way and reinforce each other: it resists corrosion even though its owners live in saltier areas than most.

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 an Audi A1 advisory become a failure?

Lamps, reflectors and electrical equipment are highest at 17.5%; Identification of the vehicle is lowest at 1.8% — the gap is 15.6 percentage points.

higher = more likelypercentage is the observed transition probability

chance the same component fails at the next MOT, given an advisory now

Audi A1 chance the same component fails at the next MOT, given an advisory now — 2024 UK MOT data
Audi A1, advisory → failure conversion by component group, chained tests 2019–2024. Chart labels and rates: Lamps & electrical 17.5% · Suspension 16% · Tyres 9.4% · Body & chassis 9.1% · Brakes 8.8% · Steering 7.9% · Visibility 7.3% · Noise, emissions, leaks 3.6%.
Advisory today → failure at the next test, with how long you have
ComponentFails next timeTypical lead timeMiles of warningAdvisories tracked
Lamps, reflectors and electrical equipment17.5%12 months7,296847
Suspension16.0%12 months6,36963,563
Tyres9.4%12 months6,779216,815
Body, chassis, structure9.1%12 months6,7765,783
Brakes8.8%12 months6,654152,637
Steering7.9%12 months6,9221,603
Visibility7.3%11.9 months7,4701,035
Noise, emissions and leaks3.6%12 months6,6767,222
Seat belts and supplementary restraint systems2.0%12.1 months7,9642,026
Identification of the vehicle1.8%12 months7,00012,219

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 17 in 100 cars, and the median gap is 12 months and roughly 7,296 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 an Audi A1?

Suspension after a failure at age 12-14 is highest at 21.6%; Brakes after a passed at age <3 are lowest at 1.3% — the gap is 20.3 percentage points.

higher = more likelypercentage is the observed transition probability

Probability of each component failing at the next test, by age and last result
AgeLast testMost likely next failuresCars tracked
<3passedTyres 4.3% · Visibility 2.3% · Brakes 1.3%57,552
<3advisoryTyres 5.8% · Visibility 2.9% · Brakes 2.8%20,125
3-5passedTyres 4.9% · Suspension 2.8% · Visibility 2.4%191,603
3-5advisoryTyres 7.4% · Suspension 4.3% · Brakes 4.1%94,134
3-5failureTyres 8.0% · Suspension 4.9% · Brakes 4.4%43,781
6-8passedSuspension 7.5% · Tyres 5.7% · Lamps, reflectors and electrical equipment 3.4%147,331
6-8advisorySuspension 9.6% · Tyres 8.3% · Brakes 5.6%98,291
6-8failureSuspension 11.4% · Tyres 9.5% · Lamps, reflectors and electrical equipment 6.8%67,163
9-11passedSuspension 12.4% · Tyres 6.5% · Lamps, reflectors and electrical equipment 6.0%55,390
9-11advisorySuspension 15.5% · Tyres 8.8% · Lamps, reflectors and electrical equipment 7.8%45,745
9-11failureSuspension 16.8% · Lamps, reflectors and electrical equipment 11.1% · Tyres 10.3%42,504
12-14passedSuspension 16.9%3,237
12-14advisorySuspension 21.6%3,088
12-14failureSuspension 21.6% · Lamps, reflectors and electrical equipment 13.9%3,827

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.

Audi A1 ownership: what six years of MOTs show

The same-day re-test pass rate is highest at 49.1%; The later re-test pass rate is lowest at 1.8% — the gap is 47.3 percentage points.

higher = larger sharecompare shares in percentage points

Fixed same day
49.14%
of failures re-tested
Fails /10k miles
0.326
miles actually driven
Clean streaks
42.6%
3+ tests, nothing noted
Odometer anomaly
0.952%
reading went backwards

Failing is usually a same-week event, not a disaster. Of 169,781 failures followed through to their re-test, 49.14% were repaired and passed the same day and 49.04% within ten days; the median gap is 1 day. 325,678 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 0.326 failures per 10,000 miles, on a median of 5,643 miles a year across 211,290 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. 42.6% of these cars strung together three or more tests with nothing recorded at all, while 25.41% 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: 0.952% of 211,329 chains show a reading lower than the previous test, with a median drop of 16,632 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.

Audi A1 inspection results in other countries

United Kingdom MOT stands out at 20.4%, against 26.0% nationally.

higher = larger sharecompare shares in percentage points

Same model, different national inspection regimes
CountryTestThis model failsNational averagePositionSample
United KingdomMOT (class 4)20.41%26.01%-5.6 pp386,496
NorwayPKK31.2%33.5%-2.3 pp1,249

The verdict is consistent across every regime we can measure, which is the strongest form this comparison takes: independent inspectorates, different rulebooks, same direction of travel.

Britain is not the only country that inspects every car every year, and the Audi A1 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: Statens vegvesen — Periodisk kjøretøykontroll (PKK) 2024, CC BY 4.0.

Audi A1 MOT: quick answers

Audi A1 MOT Risk Index stands out at 91.3, 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 Audi A1 first-time MOT pass rate?
79.59% of first attempts passed in 2024 (386,496 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 20.41% figure is the first-time initial failure rate, using 386,496 primary tests as the denominator (first-time, excluding retests). The age-adjusted MOT initial-failure ratio 91.3 is shown separately because raw rates compare fleet age as well as cars.

Compare the Audi A1 with other cars

Seat Leon is highest at 92; Audi A1 is lowest at 91.3 — the gap is 0.7 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Same brand

All Audi MOT statisticsAudi A4 MOT statsAudi A3 MOT stats

Similar risk

Ford Kuga (index 91.3)Mercedes A Class (index 91.3)Seat Leon (index 92)

Same size class

how Ford Kuga compareshow Kia Sportage compareshow Volkswagen Tiguan compares


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-v1, frozen baseline; headline claim_id=family-stats:audi-a1:dvsa-2024-v1. Full method: methodology.

Cite: MOT Risk Index (2026). Audi A1 MOT statistics 2024 (dvsa-2024-v1). https://motriskindex.co.uk/cars/audi-a1/ · Published 2026-07-30.