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Volvo Unknown vs Volvo Xc90 ultimate t8 rechrge awd a: 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 Xc90 ultimate t8 rechrge awd a
89%
MOT pass rate · 4,011 vehicles
More reliable
Verdict: On MOT pass rate, the Volvo Xc90 ultimate t8 rechrge awd a is the more reliable of the two — 89% pass first time versus 86%. It's one signal among several; check the full breakdown below.

Head to head

Measure Volvo Unknown Volvo Xc90 ultimate t8 rechrge awd a
MOT pass rate 86% 89% ✓
MOT failure rate 14% 11% ✓
Faults & advisories per test 0.7 0.7
Dangerous-fault share 4% ✓ 9%
Average mileage 431,427 mi 34,778 mi
Sample size (vehicles) 319,034 4,011

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 Xc90 ultimate t8 rechrge awd a

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Rear Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))
  6. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Reliability FAQ

On MOT pass rate, the Volvo Xc90 ultimate t8 rechrge awd a is the more reliable of the two — 89% pass first time versus 86%. It's one signal among several; check the full breakdown below.

Full Volvo Unknown report Full Volvo Xc90 ultimate t8 rechrge awd a 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.