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MOT reliability

Audi A4

568,515 vehicles · 7,092,043 completed MOT tests analysed
76%
MOT pass rate

Based on 568,515 Audi A4 vehicles and 7,092,043 completed MOT tests, the Audi A4 has an overall 76% pass rate, with an average recorded mileage of 133,841 miles.

568,515
Vehicles
7,092,043
MOT tests
9,082
Avg miles / year
1.9
Faults per test
2%
Dangerous-fault share

Audi A4 problem areas

Where faults occur most across all Audi A4 MOT tests:

  • Other68%
  • Tyres, wheels & suspension23%
  • Brakes10%
  • Lamps & electrical4%
  • Steering3%
  • Emissions & nuisance3%
  • Body & structure2%
  • Visibility2%

Audi A4 pass rate by age

How the Audi A4's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
134587%
214,37188%
3494,22486%
4495,50386%
5508,31384%
6529,71982%
7546,09580%
8560,43678%
9564,55375%
10554,27873%
11527,59472%
12478,80671%
13421,73070%
14360,96069%
15296,22869%
16231,57069%
17173,78669%
18122,92069%
1981,59469%
2050,99069%

Fuel types: Diesel (356,198), Petrol (212,069), LPG (167), Other (48), Electric (15), Gas Bi-Fuel (8), Hybrid Electric (Clean) (8), Gas (1)

Most common Audi A4 MOT faults

These are the faults and advisories recorded most often across Audi A4 MOT tests:

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (268,325 times)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1) (252,911 times)
  3. Nearside Rear Tyre worn close to the legal limit (4.1.E.1) (223,152 times)
  4. Offside Rear Tyre worn close to the legal limit (4.1.E.1) (207,615 times)
  5. Under-trays fitted obscuring some underside components (179,952 times)
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (170,876 times)
  7. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (164,745 times)
  8. Engine covers fitted obscuring some components in the engine bay (129,922 times)
  9. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (115,821 times)
  10. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (109,894 times)
  11. Oil leak, but not excessive (8.4.1 (a) (i)) (109,777 times)
  12. Rear Brake pad(s) wearing thin (3.5.1g) (97,440 times)
  13. Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d) (89,960 times)
  14. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii)) (88,907 times)
  15. Child seat fitted not allowing full inspection of adult belt (88,714 times)

Audi A4 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2025 2 2 100% 91,578
2024 1 3 67% 31,818
2023 32 43 91% 28,081
2022 91 172 92% 34,218
2021 167 461 91% 39,347
2020 6,162 23,619 89% 52,332
2019 13,527 68,134 88% 62,231
2018 14,721 91,201 87% 71,239
2017 24,114 172,229 87% 82,029
2016 25,852 202,135 85% 93,497
2015 19,726 179,526 83% 102,348
2014 21,147 209,944 83% 110,854
2013 20,397 222,725 83% 117,787
2012 18,425 214,598 82% 126,554
2011 19,271 245,397 81% 136,589
2010 19,295 260,650 80% 139,717
2009 21,162 301,399 79% 142,162
2008 29,284 441,266 78% 142,310
2007 31,658 518,373 77% 145,254
2006 32,890 544,876 77% 146,049
2005 32,687 512,312 76% 146,569
2004 31,754 530,426 75% 149,065
2003 33,396 535,136 74% 149,153
2002 28,935 436,308 73% 157,268
2001 19,538 268,877 72% 152,034
2000 16,230 230,655 68% 155,125
1999 17,571 226,030 66% 157,390
1998 19,910 220,263 65% 157,129
1997 19,343 189,672 64% 154,966
1996 19,135 167,761 63% 154,209
1995 10,460 77,755 62% 148,962
1994 24 140 68% 157,933
1993 5 55 69% 186,349
1992 3 31 68% 122,993
1991 4 5 60% 159,180
1990 2 4 100% 212,536
1988 1 5 80% 197,192
1985 3 11 64% 183,051
1983 1 1 100% 173,276
1978 1 1 100% 41,096
1971 41 303 65% 147,729
1969 1 2 50% 179,943
1962 1 2 100% 18,659

Audi A4 reliability FAQ

Across 568,515 Audi A4 vehicles in our MOT data, 76% pass the MOT (a 24% failure rate), with about 1.9 faults or advisories recorded per test.

The most frequently recorded Audi A4 MOT issues are: Nearside Front Tyre worn close to the legal limit (4.1.E.1); Offside Front Tyre worn close to the legal limit (4.1.E.1); Nearside Rear Tyre worn close to the legal limit (4.1.E.1).

The typical Audi A4 in our data has covered around 133,841 miles.

Compare the Audi A4

See how the Audi A4 stacks up against other Audi models on MOT reliability:

A4 vs A3 A4 vs A6 A4 vs A1 A4 vs Tt

Check a specific Audi A4

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Audi models · Learn about common MOT failures · what an MOT checks