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Bmw 520 vs Bmw Car: reliability comparison

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

Bmw 520
78%
MOT pass rate · 156,398 vehicles
Bmw Car
75%
MOT pass rate · 12 vehicles
Verdict: On MOT pass rate the Bmw 520 (78%) and Bmw Car (75%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Bmw 520 Bmw Car
MOT pass rate 78% ✓ 75%
MOT failure rate 22% ✓ 25%
Faults & advisories per test 1.6 ✓ 2.2
Dangerous-fault share 3% 1% ✓
Average mileage 134,460 mi 153,236 mi
Sample size (vehicles) 156,398 12

Most common faults

Bmw 520

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Under-trays fitted obscuring some underside components
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Bmw Car

  1. Engine covers fitted obscuring some components in the engine bay
  2. Under-trays fitted obscuring some underside components
  3. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

Reliability FAQ

On MOT pass rate the Bmw 520 (78%) and Bmw Car (75%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bmw 520 report Full Bmw Car 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.