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Audi A4 vs Audi Rs q3: 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 Rs q3
87%
MOT pass rate · 20 vehicles
Verdict: On MOT pass rate the Audi A4 (76%) and Audi Rs q3 (87%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Audi A4 Audi Rs q3
MOT pass rate 76% 87% ✓
MOT failure rate 24% 13% ✓
Faults & advisories per test 1.9 1.0 ✓
Dangerous-fault share 2% ✓ 8%
Average mileage 133,841 mi 70,634 mi
Sample size (vehicles) 568,515 20

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 Rs q3

  1. Nearside Rear Child Seat fitted not allowing full inspection of adult belt
  2. Nearside Front Shock absorbers has light misting of oil (5.3.2 (b))
  3. Offside Front Coil spring fractured or broken (5.3.1 (b) (i))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Rear Coil spring corroded (5.3.1 (b) (i))
  6. Offside Front Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Reliability FAQ

On MOT pass rate the Audi A4 (76%) and Audi Rs q3 (87%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Audi A4 report Full Audi Rs q3 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.