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Audi A1 technik 30 tfsi s-a vs Audi A3: reliability comparison

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

Audi A1 technik 30 tfsi s-a
90%
MOT pass rate · 723 vehicles
More reliable
Audi A3
78%
MOT pass rate · 586,036 vehicles
Verdict: On MOT pass rate, the Audi A1 technik 30 tfsi s-a is the more reliable of the two — 90% pass first time versus 78%. It's one signal among several; check the full breakdown below.

Head to head

Measure Audi A1 technik 30 tfsi s-a Audi A3
MOT pass rate 90% ✓ 78%
MOT failure rate 10% ✓ 22%
Faults & advisories per test 1.0 ✓ 1.8
Dangerous-fault share 7% 3% ✓
Average mileage 29,742 mi 112,882 mi
Sample size (vehicles) 723 586,036

Most common faults

Audi A1 technik 30 tfsi s-a

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  3. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  5. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  6. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

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)

Reliability FAQ

On MOT pass rate, the Audi A1 technik 30 tfsi s-a is the more reliable of the two — 90% pass first time versus 78%. It's one signal among several; check the full breakdown below.

Full Audi A1 technik 30 tfsi s-a report Full Audi A3 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.