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Audi A4 vs Audi A4 technik tdi: 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 A4 technik tdi
88%
MOT pass rate · 2,653 vehicles
More reliable
Verdict: On MOT pass rate, the Audi A4 technik tdi is the more reliable of the two — 88% pass first time versus 76%. It's one signal among several; check the full breakdown below.

Head to head

Measure Audi A4 Audi A4 technik tdi
MOT pass rate 76% 88% ✓
MOT failure rate 24% 12% ✓
Faults & advisories per test 1.9 0.0 ✓
Dangerous-fault share 2% 0% ✓
Average mileage 133,841 mi 149,608 mi
Sample size (vehicles) 568,515 2,653

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 A4 technik tdi

  1. Offside Rear Shock absorbers has light misting of oil (5.3.2 (b))
  2. Tyre worn close to legal limit/worn on edge Both Front (5.2.3 (e))
  3. Offside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
  4. Suspension arm pin or bush worn but not resulting in excessive movement Both Side Front Suspension Arm Rear Bush (5.3.4 (a) (i))

Reliability FAQ

On MOT pass rate, the Audi A4 technik tdi is the more reliable of the two — 88% pass first time versus 76%. It's one signal among several; check the full breakdown below.

Full Audi A4 report Full Audi A4 technik tdi 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.