Mercedes-Benz S-Class MOT Results

Registered in 2009
70.0% pass rate
from 310 tests in 2017
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 2009 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 13% fail on Suspension
    • 9.0% fail on Suspension arms (3 times worse than other 2009 cars)
      • 9.0% fail on Pins/bushes/ball joints (4 times worse than other 2009 cars)
      • 0.32% fail on Attachment
    • 2.6% fail on Front suspension joints (4 times worse than other 2009 cars)
    • 0.97% fail on Anti-roll bars
      • 0.97% fail on Linkage pins/bushes/ball joints
    • 0.97% fail on Wheel bearings
      • 0.97% fail on Front
    • 0.32% fail on Air suspension
      • 0.32% fail on Suspension unit
    • 0.32% fail on Sub-frames
      • 0.32% fail on Pins/bushes/ball joints
    • 0.32% fail on Shock absorbers
      • 0.32% fail on Condition
  • 10% fail on Lamps, Reflectors and Electrical Equipment (35% better than other 2009 cars)
    • 2.9% fail on Registration plate lamp
    • 2.6% fail on Position lamps
      • 2.3% fail on Front lamps
      • 0.32% fail on Rear lamps
    • 2.6% fail on Headlamps
      • 2.6% fail on Headlamp
    • 1.9% fail on Headlamp aim
    • 0.97% fail on Direction indicators
      • 0.97% fail on Flashing type
        • 0.97% fail on Side repeaters
    • 0.32% fail on Rear fog lamp
      • 0.32% fail on Fog lamp
    • 0.32% fail on Stop lamp
  • 10% fail on Brakes
    • 5.5% fail on Brake performance (91% worse than other 2009 cars)
      • 3.9% fail on Parking brake performance (2 times worse than other 2009 cars)
      • 1.3% fail on Rear wheels
      • 0.97% fail on Front wheels
      • 0.65% fail on Brake imbalance
    • 3.5% fail on Hub components
      • 2.9% fail on Brake pads
      • 0.97% fail on Brake discs
      • 0.32% fail on Brake calipers
    • 1.6% fail on Hydraulic systems
      • 1.3% fail on Components
        • 1.3% fail on Pipes
      • 0.32% fail on Leaks
    • 0.32% fail on Parking brake
      • 0.32% fail on Condition
    • 0.32% fail on Service brake control components
      • 0.32% fail on Pedal
        • 0.32% fail on Anti-slip
  • 7.4% fail on Tyres
    • 4.8% fail on Tread depth
    • 1.9% fail on Condition
    • 0.32% fail on Tyre pressure monitoring system
    • 0.32% fail on Size/type
  • 2.6% fail on Driver's view of the road
    • 1.3% fail on Washers
    • 0.97% fail on Wipers
    • 0.32% fail on Mirrors
  • 0.65% fail on Steering
    • 0.65% fail on Steering system
      • 0.32% fail on Ball joint
      • 0.32% fail on Track rod end
  • 0.65% fail on Seat Belts and Supplementary Restraint Systems
    • 0.65% fail on Supplementary restraint systems
      • 0.65% fail on SRS Malfunction Indicator Lamp
    • 0.32% fail on Seat belts
      • 0.32% fail on Condition
  • 0.65% fail on Exhaust, Fuel and Emissions
    • 0.32% fail on Exhaust system
    • 0.32% fail on Fuel system
      • 0.32% fail on System
  • 0.65% fail on Registration plates and VIN
    • 0.65% fail on Registration plate
  • 0.32% fail on Body, Structure and General Items
    • 0.32% fail on Body condition
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