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Audi A4 sport 35 tdi mhev s-a vs Audi A6: reliability comparison

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

Audi A4 sport 35 tdi mhev s-a
92%
MOT pass rate · 166 vehicles
Audi A6
78%
MOT pass rate · 246,602 vehicles
Verdict: On MOT pass rate the Audi A4 sport 35 tdi mhev s-a (92%) and Audi A6 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Audi A4 sport 35 tdi mhev s-a Audi A6
MOT pass rate 92% ✓ 78%
MOT failure rate 8% ✓ 22%
Faults & advisories per test 1.1 ✓ 1.7
Dangerous-fault share 6% 2% ✓
Average mileage 73,723 mi 136,441 mi
Sample size (vehicles) 166 246,602

Most common faults

Audi A4 sport 35 tdi mhev s-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. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  4. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
  5. Offside Rear Shock absorbers has light misting of oil (5.3.2 (b))
  6. Offside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

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)

Reliability FAQ

On MOT pass rate the Audi A4 sport 35 tdi mhev s-a (92%) and Audi A6 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Audi A4 sport 35 tdi mhev s-a report Full Audi A6 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.