Skip to content

Volvo Ailsa vs Volvo Unknown: reliability comparison

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

Volvo Ailsa
71%
MOT pass rate · 6 vehicles
Volvo Unknown
86%
MOT pass rate · 319,034 vehicles
Verdict: On MOT pass rate the Volvo Ailsa (71%) and Volvo Unknown (86%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Volvo Ailsa Volvo Unknown
MOT pass rate 71% 86% ✓
MOT failure rate 29% 14% ✓
Faults & advisories per test 1.0 0.7 ✓
Dangerous-fault share 0% ✓ 4%
Average mileage 298,789 mi 431,427 mi
Sample size (vehicles) 6 319,034

Most common faults

Volvo Ailsa

  1. advise smoke emissions
  2. Brakes imbalanced across an axle (3.7.B.5b)
  3. Offside Front Tyre worn close to the legal limit (4.1.D.1a)
  4. Offside Rear Tyre worn close to the legal limit (4.1.D.1a)
  5. Offside Track rod end ball joint has slight play (2.2.B.1f)
  6. surface corrosion on air tanks

Volvo Unknown

  1. Oil leak, but not excessive (8.4.1 (a) (i))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Parking brake efficiency below requirements (1.4.2 (a) (i))
  5. Service brake efficiency below requirements (1.2.2 (a) (i))
  6. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))

Reliability FAQ

On MOT pass rate the Volvo Ailsa (71%) and Volvo Unknown (86%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Volvo Ailsa report Full Volvo Unknown 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.