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Audi A4 vs Audi Q3 s line ed 1 35 tfsi mhev sa: reliability comparison

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

Audi A4
76%
MOT pass rate · 568,515 vehicles
Audi Q3 s line ed 1 35 tfsi mhev sa
92%
MOT pass rate · 571 vehicles
More reliable
Verdict: On MOT pass rate, the Audi Q3 s line ed 1 35 tfsi mhev sa is the more reliable of the two — 92% pass first time versus 76%. It's one signal among several; check the full breakdown below.

Head to head

Measure Audi A4 Audi Q3 s line ed 1 35 tfsi mhev sa
MOT pass rate 76% 92% ✓
MOT failure rate 24% 8% ✓
Faults & advisories per test 1.9 0.9 ✓
Dangerous-fault share 2% ✓ 3%
Average mileage 133,841 mi 40,551 mi
Sample size (vehicles) 568,515 571

Most common faults

Audi A4

  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 Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Under-trays fitted obscuring some underside components
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Audi Q3 s line ed 1 35 tfsi mhev sa

  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. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  4. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  5. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  6. Offside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Reliability FAQ

On MOT pass rate, the Audi Q3 s line ed 1 35 tfsi mhev sa is the more reliable of the two — 92% pass first time versus 76%. It's one signal among several; check the full breakdown below.

Full Audi A4 report Full Audi Q3 s line ed 1 35 tfsi mhev sa 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.