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Audi A6 vs Audi Rs3: 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 Rs3
89%
MOT pass rate · 204 vehicles
More reliable
Verdict: On MOT pass rate, the Audi Rs3 is the more reliable of the two — 89% pass first time versus 78%. It's one signal among several; check the full breakdown below.

Head to head

Measure Audi A6 Audi Rs3
MOT pass rate 78% 89% ✓
MOT failure rate 22% 11% ✓
Faults & advisories per test 1.7 0.9 ✓
Dangerous-fault share 2% ✓ 6%
Average mileage 136,441 mi 57,709 mi
Sample size (vehicles) 246,602 204

Most common faults

Audi A6

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Offside Rear Tyre worn close to the legal limit (4.1.E.1)

Audi Rs3

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  3. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Reliability FAQ

On MOT pass rate, the Audi Rs3 is the more reliable of the two — 89% pass first time versus 78%. It's one signal among several; check the full breakdown below.

Full Audi A6 report Full Audi Rs3 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.