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Austin A55 vs Austin Montego l: reliability comparison

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

Austin A55
83%
MOT pass rate · 2,171 vehicles
More reliable
Austin Montego l
69%
MOT pass rate · 153,789 vehicles
Verdict: On MOT pass rate, the Austin A55 is the more reliable of the two — 83% pass first time versus 69%. It's one signal among several; check the full breakdown below.

Head to head

Measure Austin A55 Austin Montego l
MOT pass rate 83% ✓ 69%
MOT failure rate 17% ✓ 31%
Faults & advisories per test 1.4 ✓ 2.0
Dangerous-fault share 0% 0%
Average mileage 53,463 mi 87,961 mi
Sample size (vehicles) 2,171 153,789

Most common faults

Austin A55

  1. Oil leak
  2. Steering system has slight free play detected at steering wheel (2.2.A.1a)
  3. Brakes imbalanced across an axle (3.7.B.5b)
  4. Parking brake: efficiency below requirements (3.7.B.7)
  5. Windscreen washer provides insufficient washer liquid (8.2.3)
  6. Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)

Austin Montego l

  1. Oil leak
  2. Offside Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)
  3. Exhaust emissions carbon monoxide content excessive (7.3.B.1a)
  4. Nearside Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)
  5. Parking brake: efficiency below requirements (3.7.B.7)
  6. oil leak

Reliability FAQ

On MOT pass rate, the Austin A55 is the more reliable of the two — 83% pass first time versus 69%. It's one signal among several; check the full breakdown below.

Full Austin A55 report Full Austin Montego l 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.