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Audi A1 vs Audi Tt s line black edit tdi quat: reliability comparison

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

Audi A1
84%
MOT pass rate · 235,482 vehicles
Audi Tt s line black edit tdi quat
94%
MOT pass rate · 65 vehicles
More reliable
Verdict: On MOT pass rate, the Audi Tt s line black edit tdi quat is the more reliable of the two — 94% pass first time versus 84%. It's one signal among several; check the full breakdown below.

Head to head

Measure Audi A1 Audi Tt s line black edit tdi quat
MOT pass rate 84% 94%
MOT failure rate 16% 6%
Faults & advisories per test 1.5 0.0
Dangerous-fault share 5%
Average mileage 67,791 mi 101,685 mi
Sample size (vehicles) 235,482 65

Most common faults

Audi A1

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

Audi Tt s line black edit tdi quat

No fault breakdown available.

Reliability FAQ

On MOT pass rate, the Audi Tt s line black edit tdi quat is the more reliable of the two — 94% pass first time versus 84%. It's one signal among several; check the full breakdown below.

Full Audi A1 report Full Audi Tt s line black edit tdi quat 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.