Mercedes-Benz S-Class MOT Results

Registered in 1987
68.7% pass rate
from 345 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 1987 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 16% fail on Lamps, Reflectors and Electrical Equipment
    • 6.4% fail on Headlamp aim
    • 3.5% fail on Position lamps
      • 2.0% fail on Front lamps
      • 1.7% fail on Rear lamps
    • 3.2% fail on Rear fog lamp
      • 2.3% fail on Fog lamp
      • 0.87% fail on Tell tale
      • 0.29% fail on Switch
    • 3.2% fail on Headlamps
      • 2.9% fail on Headlamp
      • 0.29% fail on Headlamp defects which don't require an aim check on retest
        • 0.29% fail on Main beam 'tell-tale'
      • 0.29% fail on Switch
    • 2.3% fail on Direction indicators
      • 2.3% fail on Flashing type
        • 1.7% fail on All direction indicators
        • 0.29% fail on Individual lamps
        • 0.29% fail on Tell tales
    • 2.0% fail on Registration plate lamp
    • 1.7% fail on Hazard warning
      • 1.2% fail on Lamp
      • 0.29% fail on Switch
      • 0.29% fail on Tell tale
    • 1.2% fail on Stop lamp
    • 0.87% fail on Battery
    • 0.58% fail on Horn
    • 0.29% fail on Trailer electrical socket
  • 12% fail on Brakes
    • 6.7% fail on Brake performance
      • 3.2% fail on Rear wheels
      • 2.0% fail on Front wheels
      • 1.2% fail on Parking brake performance
      • 0.58% fail on Service brake performance
      • 0.29% fail on Brake operation
      • 0.29% fail on Brake performance not tested
    • 3.8% fail on Hydraulic systems
      • 2.6% fail on Components
        • 2.0% fail on Pipes
        • 0.87% fail on Hoses
      • 0.87% fail on Leaks
      • 0.29% fail on Operation
    • 1.4% fail on ABS (5 times worse than other 1987 cars)
    • 0.87% fail on Hub components
      • 0.87% fail on Brake pads
    • 0.29% fail on Parking brake
      • 0.29% fail on Condition
  • 9.6% fail on Suspension
    • 3.8% fail on Prescribed areas
      • 3.2% fail on Component mounting
      • 0.58% fail on Subframe mounting
    • 2.0% fail on Suspension arms
      • 1.7% fail on Pins/bushes/ball joints
      • 0.29% fail on Condition
    • 1.7% fail on Front suspension joints
    • 1.2% fail on Anti-roll bars
      • 0.58% fail on Linkage pins/bushes/ball joints
      • 0.58% fail on Linkage condition
    • 0.58% fail on Coil springs
      • 0.58% fail on Condition
    • 0.58% fail on Sub-frames
      • 0.58% fail on Attachment (5 times worse than other 1987 cars)
    • 0.58% fail on Shock absorbers
      • 0.58% fail on Condition
  • 7.8% fail on Driver's view of the road
    • 5.8% fail on Wipers
    • 3.5% fail on Washers
    • 0.58% fail on Bonnet
    • 0.58% fail on Mirrors
    • 0.29% fail on Windscreen
  • 7.5% fail on Exhaust, Fuel and Emissions
    • 3.5% fail on Emissions
    • 2.9% fail on Exhaust system
    • 1.4% fail on Fuel system
      • 0.87% fail on System
      • 0.29% fail on Pipe
      • 0.29% fail on Cap
  • 3.8% fail on Body, Structure and General Items
    • 1.4% fail on Vehicle structure
      • 1.4% fail on Chassis
    • 1.2% fail on Body condition
    • 0.87% fail on Seats
      • 0.58% fail on Drivers
      • 0.29% fail on Passengers
    • 0.29% fail on Doors
      • 0.29% fail on Passengers front
  • 3.5% fail on Tyres
    • 2.0% fail on Condition
    • 1.4% fail on Tread depth
  • 2.9% fail on Seat Belts and Supplementary Restraint Systems
    • 2.9% fail on Seat belts
      • 1.7% fail on Prescribed areas
      • 0.58% fail on Requirements
      • 0.29% fail on Condition
      • 0.29% fail on Attachment
  • 2.6% fail on Steering
    • 1.7% fail on Steering system
      • 1.2% fail on Track rod end
      • 0.58% fail on Steering box
    • 0.29% fail on Power steering
      • 0.29% fail on Operation
    • 0.29% fail on Locking devices
    • 0.29% fail on Prescribed areas
  • 1.2% fail on Registration plates and VIN
    • 1.2% fail on Registration plate
  • 0.58% fail on Road Wheels
    • 0.29% fail on Condition
    • 0.29% fail on Attachment

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