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Bmw 520 vs Bmw Convertable t11: 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 Convertable t11
69%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Bmw 520 (78%) and Bmw Convertable t11 (69%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Bmw 520 Bmw Convertable t11
MOT pass rate 78% ✓ 69%
MOT failure rate 22% ✓ 31%
Faults & advisories per test 1.6 1.0 ✓
Dangerous-fault share 3% 0% ✓
Average mileage 134,460 mi 13,051 mi
Sample size (vehicles) 156,398 1

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 Convertable t11

  1. Advise fuel filter very corroded advise replacement.
  2. Advise rear brake would not pass test on readings clean and adjusted.
  3. Advise some movement in handbrake lever but not excessive, advise inspection.
  4. Front Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.5b)
  5. Nearside Front Front wheel bearing has slight play (2.5.A.3c)
  6. Exhaust engine idle speed too high (7.3.A.2a)

Reliability FAQ

On MOT pass rate the Bmw 520 (78%) and Bmw Convertable t11 (69%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bmw 520 report Full Bmw Convertable t11 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.