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Audi A4 sln vsprng 45tfsi mhev q sa vs Audi A6: reliability comparison

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

Audi A4 sln vsprng 45tfsi mhev q sa
93%
MOT pass rate · 31 vehicles
Audi A6
78%
MOT pass rate · 246,602 vehicles
Verdict: On MOT pass rate the Audi A4 sln vsprng 45tfsi mhev q sa (93%) 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 sln vsprng 45tfsi mhev q sa Audi A6
MOT pass rate 93% ✓ 78%
MOT failure rate 7% ✓ 22%
Faults & advisories per test 1.0 ✓ 1.7
Dangerous-fault share 3% 2% ✓
Average mileage 32,341 mi 136,441 mi
Sample size (vehicles) 31 246,602

Most common faults

Audi A4 sln vsprng 45tfsi mhev q sa

  1. Rear Registration plate deteriorated but not likely to be misread (0.1 (b))
  2. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  5. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Offside Rear Lower Coil spring mounting corroded but not seriously weakened (5.3.1 (b) (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 sln vsprng 45tfsi mhev q sa (93%) and Audi A6 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Audi A4 sln vsprng 45tfsi mhev q sa 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.