MOT reliability
Audi A4 tdi
988 vehicles · 1,762 completed MOT tests analysed
74%
MOT pass rate
Based on 988 Audi A4 tdi vehicles and 1,762 completed MOT tests, the Audi A4 tdi has an overall 74% pass rate, with an average recorded mileage of 184,960 miles.
988
Vehicles
1,762
MOT tests
8,967
Avg miles / year
0.1
Faults per test
3%
Dangerous-fault share
Audi A4 tdi problem areas
Where faults occur most across all Audi A4 tdi MOT tests:
-
Tyres, wheels & suspension52%
-
Other27%
-
Brakes19%
-
Lamps & electrical8%
-
Emissions & nuisance2%
-
Visibility2%
-
Identification & plates2%
-
Seatbelts & equipment1%
Audi A4 tdi pass rate by age
| Age (years) | Tests | Pass rate |
|---|---|---|
| 3 | 8 | 75% |
| 4 | 9 | 78% |
| 5 | 7 | 86% |
| 6 | 6 | 83% |
| 7 | 7 | 71% |
| 8 | 5 | 80% |
| 9 | 8 | 62% |
| 10 | 6 | 83% |
| 11 | 6 | 83% |
| 12 | 5 | 100% |
| 13 | 4 | 75% |
| 14 | 4 | 75% |
Fuel types: Diesel (984), Gas Bi-Fuel (2), Petrol (2)
Most common Audi A4 tdi MOT faults
These are the faults and advisories recorded most often across Audi A4 tdi MOT tests:
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (3 times)
- Nearside Rear Direction indicator slightly discoloured (4.4.3 (a)) (3 times)
- Offside Rear Direction indicator slightly discoloured (4.4.3 (a)) (3 times)
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (3 times)
- Child seat fitted not allowing full inspection of adult belt (2 times)
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii)) (2 times)
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (2 times)
- Front Brake disc worn, pitted or scored, but not seriously weakened both lipped slightly (1.1.14 (a) (ii)) (2 times)
- Front Suspension arm pin or bush worn but not resulting in excessive movement both rear lower arm inner bushes (5.3.4 (a) (i)) (2 times)
- Nearside Front Tyre has a cut but not deep enough to reach the ply or cords cut outer sidewall (5.2.3 (d) (i)) (2 times)
- Offside Front Inner Brake pad(s) wearing thin 3mm+ (1.1.13 (a) (ii)) (2 times)
- Offside Front Tyre has a cut but not deep enough to reach the ply or cords cut inner sidewall (5.2.3 (d) (i)) (2 times)
- Nearside Rear Tyre worn close to legal limit/worn on edge outer groove is down to the tread wear bars - 225/50R17 (5.2.3 (e)) (2 times)
- Nearside Front Shock absorbers light misting of oil or has limited damping effect (5.3.2 (b)) (2 times)
- Offside Front Shock absorbers light misting of oil or has limited damping effect (5.3.2 (b)) (2 times)
Audi A4 tdi pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2019 | 1 | 4 | 100% | 94,374 |
| 2014 | 2 | 25 | 80% | 116,200 |
| 2011 | 3 | 46 | 76% | 121,296 |
Audi A4 tdi reliability FAQ
Across 988 Audi A4 tdi vehicles in our MOT data,
74% pass the MOT (a 26% failure rate), with about
0.1 faults or advisories recorded per test.
The most frequently recorded Audi A4 tdi MOT issues are:
Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Nearside Rear Direction indicator slightly discoloured (4.4.3 (a)); Offside Rear Direction indicator slightly discoloured (4.4.3 (a)).
The typical Audi A4 tdi in our data has covered around
184,960 miles.
Compare the Audi A4 tdi
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