Mercedes-Benz S-Class MOT Results

Registered in 2011
78.1% pass rate
from 201 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 2011 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 8.5% fail on Suspension
    • 7.5% fail on Suspension arms (180% worse than other 2011 cars)
      • 7.5% fail on Ball joint (4 times worse than other 2011 cars)
      • 1.00% fail on Pins and bushes
    • 1.00% fail on Wheel bearings
    • 0.50% fail on Air/gas/fluid suspension
      • 0.50% fail on Operation
  • 6.5% fail on Noise, emissions and leaks (2 times worse than other 2011 cars)
    • 6.5% fail on Exhaust emissions (2 times worse than other 2011 cars)
      • 3.5% fail on Spark ignition (2 times worse than other 2011 cars)
        • 3.5% fail on Malfunction indicator lamp (4 times worse than other 2011 cars)
      • 3.0% fail on Compression ignition (3 times worse than other 2011 cars)
        • 3.0% fail on Malfunction indicator lamp (7 times worse than other 2011 cars)
  • 6.0% fail on Brakes
    • 4.5% fail on Brake performance
      • 4.0% fail on Parking brake efficiency (sp) (3 times worse than other 2011 cars)
        • 4.0% fail on Rbt (sp) (3 times worse than other 2011 cars)
      • 1.5% fail on Parking brake performance
        • 1.5% fail on Rbt
          • 1.5% fail on Parking brake performance
      • 0.50% fail on Service brake performance
        • 0.50% fail on Rbt
          • 0.50% fail on Service brake performance
    • 1.00% fail on Rigid brake pipes
    • 1.00% fail on Mechanical brake components
      • 0.50% fail on Brake linings and pads
        • 0.50% fail on Brake pads
      • 0.50% fail on Brake discs and drums
        • 0.50% fail on Brake discs
    • 0.50% fail on ABS / EBS / ESC
      • 0.50% fail on Anti-lock braking system
      • 0.50% fail on Electronic stability control
  • 5.0% fail on Lamps, reflectors and electrical equipment (53% better than other 2011 cars)
    • 2.0% fail on Headlamp aim
      • 2.0% fail on Headlamp aim
    • 1.5% fail on Direction indicators
      • 1.5% fail on Flashing type
        • 1.5% fail on Side repeaters
    • 1.00% fail on Headlamps
      • 1.00% fail on Headlamp cleaning device (13 times worse than other 2011 cars)
    • 0.50% fail on Position lamps
      • 0.50% fail on Position lamp
    • 0.50% fail on Registration plate lamp(s)
  • 4.0% fail on Tyres
    • 2.0% fail on Condition
    • 2.0% fail on Tread depth
  • 2.0% fail on Identification of the vehicle (4 times worse than other 2011 cars)
    • 2.0% fail on Registration plates (4 times worse than other 2011 cars)
  • 1.00% fail on Visibility
    • 0.50% fail on Bonnet
    • 0.50% fail on Wipers
  • 0.50% fail on Body, chassis, structure
    • 0.50% fail on Exhaust system
  • 0.50% fail on Seat belts and supplementary restraint systems
    • 0.50% fail on SRS malfunction indicator lamp
  • 0.50% fail on Road Wheels
    • 0.50% fail on Attachment
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