Audi S4 - 2019
71.6 faults per 100 tests
Year average for all cars of 2019 is 108.6 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi S4, model year 2019.
Sample size: 283 cars, 596 tests and 427 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 283 cars
The 2019 Audi S4 has a significantly lower overall defect rate of 72 per 100 compared to the average of 106 per 100, marking a 32.5% improvement. In the mileage categories, the S4 shows a slight increase in defects as mileage rises, with 210 defects per 100 for vehicles under 31,000 miles, peaking at 223 defects per 100 for those between 62,000 and 93,000 miles. Notably, the S4 excels in several areas, particularly in brakes, where it records 47 defects per 100, compared to the average of 60, and completely avoids defects in steering and lighting. Overall, the Audi S4 stands out for its reliability, particularly in critical systems.
Cars by mileage segment
Total: 283 cars
Categories
Brakes
▲ 24.7% better
47.0 faults / 100 tests
Year avg: 62.4 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Brake disc or drum: significantly and obviously worn
- Brake lining or pad: worn below 1.5mm
- Brake lining or pad: worn below 1.5mm
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 2.8 / 100 tests
Visibility
▲ 2.9% better
13.4 faults / 100 tests
Year avg: 13.8 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: defective
- Windscreen or window excessively tinted: but not adversely affecting driver’s view
- Windscreen or window: in an unacceptable condition e.g. due to excessive scratching
Lights & Electrics
▲ 93.3% better
1.0 faults / 100 tests
Year avg: 14.9 / 100 tests
- Reflector: missing or reflecting white to the rear
- The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▲ 27.8% better
81.5 faults / 100 tests
Year avg: 112.9 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- A spring: or spring component fractured or seriously weakened
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 91.4% better
0.3 faults / 100 tests
Year avg: 3.5 / 100 tests
- Fuel system: leaking, or missing or ineffective filler cap
Equipment
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 1.8 / 100 tests
Other
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 5.1 / 100 tests
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 107
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 56
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 45
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 40
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 27
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 25
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 21
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 17
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 15
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 14
Serious faults (Top 10)
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 17
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 14
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 12
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 7
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 5
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 3
A suspension component: excessively damaged or corroded
FAIL
Occurrences: 2
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 2
Reflector: missing or reflecting white to the rear
FAIL
Occurrences: 2
Windscreen or window: in an unacceptable condition e.g. due to excessive scratching
FAIL
Occurrences: 1