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Audi A1 vs Audi A6 aroad spt 50tdi mhev quat a: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Audi A1
84%
MOT pass rate · 235,482 vehicles
Audi A6 aroad spt 50tdi mhev quat a
94%
MOT pass rate · 210 vehicles
More reliable
Verdict: On MOT pass rate, the Audi A6 aroad spt 50tdi mhev quat a is the more reliable of the two — 94% pass first time versus 84%. It's one signal among several; check the full breakdown below.

Head to head

Measure Audi A1 Audi A6 aroad spt 50tdi mhev quat a
MOT pass rate 84% 94% ✓
MOT failure rate 16% 6% ✓
Faults & advisories per test 1.5 0.7 ✓
Dangerous-fault share 5% 4% ✓
Average mileage 67,791 mi 57,504 mi
Sample size (vehicles) 235,482 210

Most common faults

Audi A1

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  4. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  5. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  6. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Audi A6 aroad spt 50tdi mhev quat a

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
  4. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  5. Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))
  6. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))

Reliability FAQ

On MOT pass rate, the Audi A6 aroad spt 50tdi mhev quat a is the more reliable of the two — 94% pass first time versus 84%. It's one signal among several; check the full breakdown below.

Full Audi A1 report Full Audi A6 aroad spt 50tdi mhev quat a 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.