Skip to content

Audi A3 vs Audi Q8 sln ed 1 55 tfsi mhev qto a: reliability comparison

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

Audi A3
78%
MOT pass rate · 586,036 vehicles
Audi Q8 sln ed 1 55 tfsi mhev qto a
90%
MOT pass rate · 42 vehicles
Verdict: On MOT pass rate the Audi A3 (78%) and Audi Q8 sln ed 1 55 tfsi mhev qto a (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Audi A3 Audi Q8 sln ed 1 55 tfsi mhev qto a
MOT pass rate 78% 90% ✓
MOT failure rate 22% 10% ✓
Faults & advisories per test 1.8 1.0 ✓
Dangerous-fault share 3% 3%
Average mileage 112,882 mi 39,730 mi
Sample size (vehicles) 586,036 42

Most common faults

Audi A3

  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. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  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 Q8 sln ed 1 55 tfsi mhev qto 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. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Rear Child Seat fitted not allowing full inspection of adult belt
  6. Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))

Reliability FAQ

On MOT pass rate the Audi A3 (78%) and Audi Q8 sln ed 1 55 tfsi mhev qto a (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Audi A3 report Full Audi Q8 sln ed 1 55 tfsi mhev qto 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.