Audi A6 vs Audi Rs6 quattro auto: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Audi A6
78%
MOT pass rate · 246,602 vehicles
Audi Rs6 quattro auto
81%
MOT pass rate · 100 vehicles
Verdict: On MOT pass rate the Audi A6 (78%) and Audi Rs6 quattro auto (81%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Audi A6 | Audi Rs6 quattro auto |
|---|---|---|
| MOT pass rate | 78% | 81% ✓ |
| MOT failure rate | 22% | 19% ✓ |
| Faults & advisories per test | 1.7 | 0.0 ✓ |
| Dangerous-fault share | 2% | 0% ✓ |
| Average mileage | 136,441 mi | 86,581 mi |
| Sample size (vehicles) | 246,602 | 100 |
Most common faults
Audi A6
- 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 Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- 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)
Audi Rs6 quattro auto
- Front registration plate has a feature which changes the appearance or legibility of the characters (6.3.4c)
- Rear registration plate has a feature which changes the appearance or legibility of the characters (6.3.4c)
Reliability FAQ
On MOT pass rate the Audi A6 (78%) and Audi Rs6 quattro auto (81%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Audi A6 report Full Audi Rs6 quattro auto report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.