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Mercedes-benz 817 vs Mercedes-benz E: reliability comparison

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

Mercedes-benz 817
33%
MOT pass rate · 1 vehicles
Mercedes-benz E
79%
MOT pass rate · 429,719 vehicles
Verdict: On MOT pass rate the Mercedes-benz 817 (33%) 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 817 Mercedes-benz E
MOT pass rate 33% 79% ✓
MOT failure rate 67% 21% ✓
Faults & advisories per test 10.7 1.6 ✓
Dangerous-fault share 0% ✓ 3%
Average mileage 90,821 mi 124,278 mi
Sample size (vehicles) 1 429,719

Most common faults

Mercedes-benz 817

  1. Front Brake disc worn, pitted or scored, but not seriously weakened both (1.1.14 (a) (ii))
  2. Power steering pipe/hose slightly corroded (2.1.5 (g) (i))
  3. Rear Brake disc worn, pitted or scored, but not seriously weakened both (1.1.14 (a) (ii))
  4. Offside Headlamp aim too high (4.1.2 (a))
  5. Nearside Front Lower Anti-roll bar linkage pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
  6. Oil leak, but not excessive (8.4.1 (a) (i))

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 817 (33%) 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 817 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.