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MOT reliability

Audi S4

2,068 vehicles · 27,881 completed MOT tests analysed
80%
MOT pass rate

Based on 2,068 Audi S4 vehicles and 27,881 completed MOT tests, the Audi S4 has an overall 80% pass rate, with an average recorded mileage of 108,606 miles.

2,068
Vehicles
27,881
MOT tests
6,225
Avg miles / year
1.6
Faults per test
2%
Dangerous-fault share

Audi S4 problem areas

Where faults occur most across all Audi S4 MOT tests:

  • Other66%
  • Tyres, wheels & suspension24%
  • Brakes10%
  • Emissions & nuisance5%
  • Lamps & electrical5%
  • Body & structure2%
  • Visibility2%
  • Steering2%

Audi S4 pass rate by age

How the Audi S4's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
1580%
26190%
31,61287%
41,61786%
51,62886%
61,79684%
71,96883%
82,02382%
92,00079%
101,95979%
111,87979%
121,78578%
131,67276%
141,54677%
151,33676%
161,06577%
1787876%
1875976%
1967476%
2048377%

Fuel types: Petrol (2,041), Other (12), Diesel (9), LPG (5), Gas Bi-Fuel (1)

Most common Audi S4 MOT faults

These are the faults and advisories recorded most often across Audi S4 MOT tests:

  1. Oil leak, but not excessive (8.4.1 (a) (i)) (1,009 times)
  2. Nearside Rear Tyre worn close to the legal limit (4.1.E.1) (834 times)
  3. Offside Rear Tyre worn close to the legal limit (4.1.E.1) (783 times)
  4. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (740 times)
  5. Under-trays fitted obscuring some underside components (695 times)
  6. Offside Front Tyre worn close to the legal limit (4.1.E.1) (672 times)
  7. Engine covers fitted obscuring some components in the engine bay (496 times)
  8. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (427 times)
  9. Oil leak (414 times)
  10. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (398 times)
  11. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (395 times)
  12. Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d) (383 times)
  13. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (380 times)
  14. Nearside Front Upper Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2) (283 times)
  15. Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a) (273 times)

Audi S4 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2025 1 3 67% 196,166
2024 1 2 100% 100,752
2023 1 1 100% 48
2021 1 1 100% 28
2020 2 7 86% 58,721
2019 4 10 100% 56,372
2018 13 62 85% 51,135
2017 30 166 88% 65,144
2016 2 5 100% 76,774
2015 27 212 91% 72,974
2014 96 833 89% 85,238
2013 77 675 89% 87,737
2012 62 569 86% 83,761
2011 162 1,903 86% 94,606
2010 189 2,239 86% 99,500
2009 152 1,828 86% 101,130
2008 21 317 84% 91,950
2007 113 1,859 81% 102,495
2006 176 2,859 81% 103,517
2005 216 3,589 80% 107,524
2004 245 4,304 79% 109,459
2003 34 417 81% 114,932
2002 3 39 69% 96,339
2001 19 275 73% 151,390
2000 123 2,101 71% 149,037
1999 160 2,656 73% 151,134
1998 65 844 73% 151,290
1997 1 12 83% 173,640
1994 1 8 62% 210,424
1993 3 21 71% 226,311
1992 1 1 100% 151,475

Audi S4 reliability FAQ

Across 2,068 Audi S4 vehicles in our MOT data, 80% pass the MOT (a 20% failure rate), with about 1.6 faults or advisories recorded per test.

The most frequently recorded Audi S4 MOT issues are: Oil leak, but not excessive (8.4.1 (a) (i)); Nearside Rear Tyre worn close to the legal limit (4.1.E.1); Offside Rear Tyre worn close to the legal limit (4.1.E.1).

The typical Audi S4 in our data has covered around 108,606 miles.

Compare the Audi S4

See how the Audi S4 stacks up against other Audi models on MOT reliability:

S4 vs A3 S4 vs A4 S4 vs A6 S4 vs A1

Check a specific Audi S4

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