Mercedes-Benz S-Class MOT Results

Registered in 1990
67.0% pass rate
from 500 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 1990 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 16% fail on Lamps, Reflectors and Electrical Equipment
    • 4.0% fail on Headlamp aim
    • 3.8% fail on Position lamps
      • 2.2% fail on Front lamps
      • 2.2% fail on Rear lamps
    • 3.6% fail on Rear fog lamp
      • 2.8% fail on Fog lamp
      • 1.4% fail on Tell tale
      • 1.0% fail on Switch (2 times worse than other 1990 cars)
    • 3.2% fail on Registration plate lamp
    • 2.4% fail on Headlamps
      • 2.4% fail on Headlamp
      • 0.20% fail on Headlamp defects which don't require an aim check on retest
        • 0.20% fail on Main beam 'tell-tale'
    • 2.4% fail on Direction indicators
      • 2.4% fail on Flashing type
        • 1.4% fail on Side repeaters
        • 1.2% fail on Individual lamps
        • 0.40% fail on All direction indicators
    • 2.2% fail on Stop lamp
    • 1.8% fail on Battery
    • 0.40% fail on Hazard warning
      • 0.40% fail on Lamp
      • 0.20% fail on Switch
    • 0.20% fail on Horn
  • 12% fail on Brakes
    • 6.6% fail on Brake performance
      • 4.0% fail on Rear wheels
      • 3.0% fail on Parking brake performance
      • 1.8% fail on Front wheels
      • 0.80% fail on Service brake performance
      • 0.60% fail on Brake performance not tested
      • 0.20% fail on Brake imbalance
    • 5.0% fail on Hydraulic systems
      • 4.2% fail on Components
        • 3.4% fail on Pipes
        • 0.80% fail on Hoses
      • 0.40% fail on Operation
      • 0.40% fail on Leaks
    • 2.2% fail on Hub components
      • 1.8% fail on Brake pads
      • 0.40% fail on Brake discs
      • 0.20% fail on Brake calipers
    • 1.4% fail on ABS (3 times worse than other 1990 cars)
    • 0.20% fail on Parking brake
      • 0.20% fail on Condition
    • 0.20% fail on Restricted movement
  • 10% fail on Suspension (28% better than other 1990 cars)
    • 3.2% fail on Prescribed areas
      • 2.2% fail on Component mounting
      • 0.80% fail on Spring mounting
      • 0.80% fail on Subframe mounting
    • 1.8% fail on Coil springs
      • 1.6% fail on Condition
      • 0.20% fail on Location
    • 1.8% fail on Anti-roll bars
      • 1.0% fail on Attachment (4 times worse than other 1990 cars)
      • 0.40% fail on Linkage pins/bushes/ball joints
      • 0.40% fail on Pins/bushes/ball joints
      • 0.20% fail on Linkage condition
    • 1.2% fail on Suspension arms
      • 1.2% fail on Pins/bushes/ball joints
    • 1.2% fail on Front suspension joints
    • 1.0% fail on Wheel bearings
      • 1.0% fail on Front
    • 0.60% fail on Sub-frames
      • 0.40% fail on Attachment
      • 0.20% fail on Condition
    • 0.20% fail on General condition
    • 0.20% fail on Trailing arms
      • 0.20% fail on Pins/bushes/ball joints
    • 0.20% fail on Tie bars/rods
      • 0.20% fail on Condition
    • 0.20% fail on Drive shafts
      • 0.20% fail on Front drive shafts
        • 0.20% fail on Constant velocity joints
  • 8.4% fail on Driver's view of the road
    • 4.4% fail on Wipers
    • 3.2% fail on Washers
    • 0.80% fail on Windscreen
    • 0.20% fail on Bonnet
    • 0.20% fail on Mirrors
  • 6.8% fail on Exhaust, Fuel and Emissions
    • 3.8% fail on Exhaust system
    • 3.0% fail on Emissions
    • 0.60% fail on Emissions not tested
    • 0.40% fail on Fuel system
      • 0.20% fail on Hose
      • 0.20% fail on Pipe
  • 4.2% fail on Tyres
    • 3.0% fail on Condition
    • 1.2% fail on Tread depth
  • 3.4% fail on Steering
    • 3.0% fail on Steering system
      • 1.6% fail on Track rod end
      • 1.2% fail on Drag link end (2 times worse than other 1990 cars)
      • 0.40% fail on Steering box
      • 0.40% fail on Ball joint
      • 0.20% fail on Other components
        • 0.20% fail on Steering pivot point
    • 0.40% fail on Steering operation
    • 0.40% fail on Power steering
      • 0.20% fail on Operation
      • 0.20% fail on Other components
  • 3.0% fail on Body, Structure and General Items
    • 1.6% fail on Body condition
    • 1.2% fail on Seats
      • 1.2% fail on Drivers
      • 0.60% fail on Passengers
    • 0.20% fail on Speedometer
  • 2.4% fail on Seat Belts and Supplementary Restraint Systems
    • 2.2% fail on Seat belts
      • 1.6% fail on Prescribed areas
      • 0.40% fail on Requirements
      • 0.20% fail on Condition
      • 0.20% fail on Attachment
    • 0.20% fail on Supplementary restraint systems
      • 0.20% fail on SRS Malfunction Indicator Lamp
  • 0.60% fail on Registration plates and VIN
    • 0.60% fail on Registration plate
  • 0.20% fail on Road Wheels
    • 0.20% fail on Attachment

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