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Mercedes-benz 310 d vs Mercedes-benz A-class: reliability comparison

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

Mercedes-benz 310 d
79%
MOT pass rate · 1 vehicles
Mercedes-benz A-class
78%
MOT pass rate · 362,612 vehicles
Verdict: On MOT pass rate the Mercedes-benz 310 d (79%) and Mercedes-benz A-class (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz 310 d Mercedes-benz A-class
MOT pass rate 79% ✓ 78%
MOT failure rate 21% ✓ 22%
Faults & advisories per test 1.4 ✓ 1.6
Dangerous-fault share 12% 3% ✓
Average mileage 359,237 mi 86,210 mi
Sample size (vehicles) 1 362,612

Most common faults

Mercedes-benz 310 d

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)
  3. Nearside Front Seat belt damaged but webbing not significantly weakened (5.2.2a)
  4. Offside Front Seat belt damaged but webbing not significantly weakened (5.2.2a)
  5. Steering system has slight free play detected at steering wheel (2.2.A.1a)
  6. Nearside Front Direction indicator not working (1.4.A.2c)

Mercedes-benz A-class

  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. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Under-trays fitted obscuring some underside components
  5. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Reliability FAQ

On MOT pass rate the Mercedes-benz 310 d (79%) and Mercedes-benz A-class (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz 310 d report Full Mercedes-benz A-class 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.