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Mercedes-benz Cla coupe vs Mercedes-benz E: reliability comparison

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

Mercedes-benz Cla coupe
75%
MOT pass rate · 3 vehicles
Mercedes-benz E
79%
MOT pass rate · 429,719 vehicles
Verdict: On MOT pass rate the Mercedes-benz Cla coupe (75%) and Mercedes-benz E (79%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz Cla coupe Mercedes-benz E
MOT pass rate 75% 79% ✓
MOT failure rate 25% 21% ✓
Faults & advisories per test 0.5 ✓ 1.6
Dangerous-fault share 17% 3% ✓
Average mileage 44,017 mi 124,278 mi
Sample size (vehicles) 3 429,719

Most common faults

Mercedes-benz Cla coupe

  1. Rear Brake pad(s) less than 1.5 mm thick Both (1.1.13 (a) (ii))
  2. Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))
  3. Front Windscreen washer provides insufficient washer liquid EMPTY (3.5 (a))
  4. Front suspension arm bushes covered with under trays
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Mercedes-benz E

  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. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Offside Front Tyre worn close to the legal limit (4.1.E.1)

Reliability FAQ

On MOT pass rate the Mercedes-benz Cla coupe (75%) and Mercedes-benz E (79%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz Cla coupe report Full Mercedes-benz E 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.