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Mercedes-benz E vs Mercedes-benz Sl 55 amg: 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 Sl 55 amg
73%
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Mercedes-benz E (79%) and Mercedes-benz Sl 55 amg (73%) 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 Sl 55 amg
MOT pass rate 79% ✓ 73%
MOT failure rate 21% ✓ 27%
Faults & advisories per test 1.6 1.5 ✓
Dangerous-fault share 3% 0% ✓
Average mileage 124,278 mi 78,155 mi
Sample size (vehicles) 429,719 3

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 Sl 55 amg

  1. engine covers and undertray fitted
  2. Offside Rear Exhaust mounting defective (6.1.2 (a))
  3. under trays fitted
  4. Parking brake lever has little reserve travel (3.1.6b)
  5. Brakes ; Imbalance ; Rear brakes 14 % , Parking brakes 11 %
  6. Brakes ; Pipe corroded , o/s/f at hose

Reliability FAQ

On MOT pass rate the Mercedes-benz E (79%) and Mercedes-benz Sl 55 amg (73%) 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 Sl 55 amg 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.