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Mercedes-benz E vs Mercedes-benz E 320 cdi: reliability comparison

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

Mercedes-benz E
79%
MOT pass rate · 429,719 vehicles
Mercedes-benz E 320 cdi
79%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Mercedes-benz E (79%) and Mercedes-benz E 320 cdi (79%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz E Mercedes-benz E 320 cdi
MOT pass rate 79% 79%
MOT failure rate 21% 21%
Faults & advisories per test 1.6 ✓ 1.9
Dangerous-fault share 3% 1% ✓
Average mileage 124,278 mi 170,232 mi
Sample size (vehicles) 429,719 2

Most common faults

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)

Mercedes-benz E 320 cdi

  1. Offside Rear Brake pipe slightly corroded (3.6.B.2c)
  2. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Front Wheel bearing has slight play (5.1.3 (a) (i))
  5. Nearside Rear Brake pipe slightly corroded (3.6.B.2c)
  6. Nearside Rear Suspension arm has slight play in a pin/bush (2.4.G.2)

Reliability FAQ

On MOT pass rate the Mercedes-benz E (79%) and Mercedes-benz E 320 cdi (79%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz E report Full Mercedes-benz E 320 cdi 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.