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Model reliability
Audi S3 reliability
The Audi S3 fails its MOT less often than most cars over 10 years old: 26% of 2,316 tests failed in 2023, against 39.7% on average.
6 to 10 years old
14% failed their MOT
From 1,182 MOT tests of Audi S3s this age.
Over 10 years old
26% failed their MOT
From 2,316 MOT tests of Audi S3s this age.
Where it does worse than other cars this age
Fails 31% more oftenExhaust emissions6.7% vs 5.1%Fix about £150
Advised 79% more oftenTransmission5.2% vs 2.9%
Checking a Audi S3 before you buy
Look at the parts above at the viewing, and read the car’s own MOT history: advisories for the same parts suggest the problem is already starting. Sweep’s free check shows every MOT, advisory and mileage reading for a registration.
Source: DVSA anonymised MOT tests 2023 (Open Government Licence v3.0). Failure rates compare this model with all cars in the same age band. Fix prices are typical independent-garage estimates.