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Mercedes-benz 815 d-ka vs Mercedes-benz A-class: reliability comparison

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

Mercedes-benz 815 d-ka
75%
MOT pass rate · 1 vehicles
Mercedes-benz A-class
78%
MOT pass rate · 362,612 vehicles
Verdict: On MOT pass rate the Mercedes-benz 815 d-ka (75%) 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 815 d-ka Mercedes-benz A-class
MOT pass rate 75% 78% ✓
MOT failure rate 25% 22% ✓
Faults & advisories per test 2.0 1.6 ✓
Dangerous-fault share 0% ✓ 3%
Average mileage 258,146 mi 86,210 mi
Sample size (vehicles) 1 362,612

Most common faults

Mercedes-benz 815 d-ka

  1. Headlamp aim projected beam image is obviously incorrect Both headlamps, kick incorrect (4.1.2 (c))
  2. Offside Front Brake pipe corroded, covered in grease or other material Pipe that goes through chassis (1.1.11 (c))
  3. Nearside Front Seat belt buckle slightly damaged (7.1.2 (d))
  4. Nearside Front Tyre slightly damaged/cracking or perishing TYRE FEATHERING (5.2.3 (d) (ii))
  5. Offside Front Seat belt buckle slightly damaged (7.1.2 (d))
  6. Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

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 815 d-ka (75%) 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 815 d-ka 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.