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Bmw 320d gt vs Bmw 520: reliability comparison

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

Bmw 320d gt
77%
MOT pass rate · 1 vehicles
Bmw 520
78%
MOT pass rate · 156,398 vehicles
Verdict: On MOT pass rate the Bmw 320d gt (77%) and Bmw 520 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Bmw 320d gt Bmw 520
MOT pass rate 77% 78% ✓
MOT failure rate 23% 22% ✓
Faults & advisories per test 0.6 ✓ 1.6
Dangerous-fault share 25% 3% ✓
Average mileage 93,739 mi 134,460 mi
Sample size (vehicles) 1 156,398

Most common faults

Bmw 320d gt

  1. under trays fitted
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Rear Tyre worn close to legal limit/worn on edge Both (5.2.3 (e))
  4. Front Brake disc worn, pitted or scored, but not seriously weakened Scored and corroded (1.1.14 (a) (ii))
  5. Offside Rear Tyre worn close to legal limit/worn on edge 2.5mm - 255/40/19 RF (5.2.3 (e))
  6. Headlamp aim too high BOTH (4.1.2 (a))

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))

Reliability FAQ

On MOT pass rate the Bmw 320d gt (77%) and Bmw 520 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bmw 320d gt report Full Bmw 520 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.