Mercedes-Benz S-Class MOT Results

Registered in 2012
76.2% pass rate
from 269 tests in 2020
Failure rates by item

Here you can drill down into the failure rates for each item on the test. We've also compared the rates to the average results for 2012 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 6.7% fail on Tyres
    • 3.7% fail on Condition
    • 3.3% fail on Tread depth
  • 6.3% fail on Suspension
    • 6.3% fail on Suspension arms (2 times worse than other 2012 cars)
      • 5.2% fail on Ball joint (4 times worse than other 2012 cars)
      • 1.5% fail on Ball joint dust cover (5 times worse than other 2012 cars)
    • 0.37% fail on Wheel bearings
  • 5.9% fail on Noise, emissions and leaks (3 times worse than other 2012 cars)
    • 5.9% fail on Exhaust emissions (3 times worse than other 2012 cars)
      • 3.3% fail on Spark ignition (3 times worse than other 2012 cars)
        • 3.3% fail on Malfunction indicator lamp (5 times worse than other 2012 cars)
      • 2.6% fail on Compression ignition (3 times worse than other 2012 cars)
        • 2.6% fail on Malfunction indicator lamp (7 times worse than other 2012 cars)
        • 0.37% fail on On or after 01/07/2008
  • 4.1% fail on Visibility
    • 2.6% fail on Washers
    • 1.5% fail on Wipers
  • 3.7% fail on Brakes
    • 3.0% fail on Brake performance
      • 2.2% fail on Parking brake efficiency (sp) (2 times worse than other 2012 cars)
        • 2.2% fail on Rbt (sp) (2 times worse than other 2012 cars)
      • 0.74% fail on Service brake performance
        • 0.74% fail on Rbt
          • 0.37% fail on Service brake performance
          • 0.37% fail on Service brake imbalance
      • 0.37% fail on Parking brake performance
        • 0.37% fail on Rbt
          • 0.37% fail on Parking brake performance
    • 1.1% fail on Mechanical brake components
      • 1.1% fail on Brake linings and pads
        • 1.1% fail on Brake pads
      • 0.37% fail on Brake discs and drums
        • 0.37% fail on Brake discs
  • 3.0% fail on Lamps, reflectors and electrical equipment (67% better than other 2012 cars)
    • 1.9% fail on Headlamp aim
      • 1.9% fail on Headlamp aim
    • 0.37% fail on Headlamps
      • 0.37% fail on Headlamp
    • 0.37% fail on Direction indicators
      • 0.37% fail on Flashing type
        • 0.37% fail on Side repeaters
    • 0.37% fail on Hazard warning
      • 0.37% fail on Switch
  • 0.37% fail on Identification of the vehicle
    • 0.37% fail on Registration plates
  • 0.37% fail on Body, chassis, structure
    • 0.37% fail on Exhaust system
  • 0.37% fail on Road Wheels
    • 0.37% fail on Condition
Read the Honest John Review

Search Good Garages