Audi A4 vs Audi Q5 se tdi quattro dpf: 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 Q5 se tdi quattro dpf
87%
MOT pass rate · 134 vehicles
More reliable
Verdict: On MOT pass rate, the Audi Q5 se tdi quattro dpf is the more reliable of the two — 87% pass first time versus 76%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Audi A4 | Audi Q5 se tdi quattro dpf |
|---|---|---|
| MOT pass rate | 76% | 87% ✓ |
| MOT failure rate | 24% | 13% ✓ |
| Faults & advisories per test | 1.9 | 0.0 ✓ |
| Dangerous-fault share | 2% | — ✓ |
| Average mileage | 133,841 mi | 171,185 mi |
| Sample size (vehicles) | 568,515 | 134 |
Most common faults
Audi A4
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Under-trays fitted obscuring some underside components
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Audi Q5 se tdi quattro dpf
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Audi Q5 se tdi quattro dpf is the more reliable of the two — 87% pass first time versus 76%. It's one signal among several; check the full breakdown below.
Full Audi A4 report Full Audi Q5 se tdi quattro dpf 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.