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Volvo Unknown vs Volvo Xc60 + b4 mhev auto: reliability comparison

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

Volvo Unknown
86%
MOT pass rate · 319,034 vehicles
Volvo Xc60 + b4 mhev auto
94%
MOT pass rate · 879 vehicles
More reliable
Verdict: On MOT pass rate, the Volvo Xc60 + b4 mhev auto is the more reliable of the two — 94% pass first time versus 86%. It's one signal among several; check the full breakdown below.

Head to head

Measure Volvo Unknown Volvo Xc60 + b4 mhev auto
MOT pass rate 86% 94% ✓
MOT failure rate 14% 6% ✓
Faults & advisories per test 0.7 0.5 ✓
Dangerous-fault share 4% ✓ 5%
Average mileage 431,427 mi 27,165 mi
Sample size (vehicles) 319,034 879

Most common faults

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))

Volvo Xc60 + b4 mhev auto

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Nearside Rear Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

Reliability FAQ

On MOT pass rate, the Volvo Xc60 + b4 mhev auto is the more reliable of the two — 94% pass first time versus 86%. It's one signal among several; check the full breakdown below.

Full Volvo Unknown report Full Volvo Xc60 + b4 mhev auto 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.