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Volvo C30 se vs Volvo Unknown: reliability comparison

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

Volvo C30 se
78%
MOT pass rate · 21 vehicles
Volvo Unknown
86%
MOT pass rate · 319,034 vehicles
Verdict: On MOT pass rate the Volvo C30 se (78%) 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 C30 se Volvo Unknown
MOT pass rate 78% 86% ✓
MOT failure rate 22% 14% ✓
Faults & advisories per test 0.2 ✓ 0.7
Dangerous-fault share 0% ✓ 4%
Average mileage 106,785 mi 431,427 mi
Sample size (vehicles) 21 319,034

Most common faults

Volvo C30 se

  1. Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
  2. Nearside Front Headlamp light intensity severely reduced (4.1.4 (a))
  3. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. 205/50R17
  6. Nearside Front Tyre worn close to legal limit/worn on edge 2.52mm (5.2.3 (e))

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 C30 se (78%) and Volvo Unknown (86%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Volvo C30 se 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.