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Mercedes-benz A-class vs Mercedes-benz Cla 220: reliability comparison

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

Mercedes-benz A-class
78%
MOT pass rate · 362,612 vehicles
Mercedes-benz Cla 220
90%
MOT pass rate · 7 vehicles
Verdict: On MOT pass rate the Mercedes-benz A-class (78%) and Mercedes-benz Cla 220 (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz A-class Mercedes-benz Cla 220
MOT pass rate 78% 90% ✓
MOT failure rate 22% 10% ✓
Faults & advisories per test 1.6 0.6 ✓
Dangerous-fault share 3% ✓ 17%
Average mileage 86,210 mi 73,217 mi
Sample size (vehicles) 362,612 7

Most common faults

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))

Mercedes-benz Cla 220

  1. Nearside Rear Child Seat fitted not allowing full inspection of adult belt
  2. Nearside Front Anti-roll bar damaged and seriously weakened (5.3.3 (b) (i))
  3. Offside Front Anti-roll bar damaged and seriously weakened (5.3.3 (b) (i))
  4. Front Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii))
  5. Nearside Front Road wheel fractured (5.2.2 (a))
  6. Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Mercedes-benz A-class (78%) and Mercedes-benz Cla 220 (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz A-class report Full Mercedes-benz Cla 220 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.