Mercedes-Benz S-Class MOT Results

Registered in 1986
66.7% pass rate
from 219 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 1986 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 18% fail on Lamps, Reflectors and Electrical Equipment
    • 7.3% fail on Headlamp aim
    • 3.2% fail on Registration plate lamp
    • 2.3% fail on Rear fog lamp
      • 0.91% fail on Fog lamp (80% better than other 1986 cars)
      • 0.91% fail on Tell tale
      • 0.46% fail on Switch
    • 2.3% fail on Stop lamp
    • 2.3% fail on Direction indicators
      • 2.3% fail on Flashing type
        • 0.91% fail on All direction indicators
        • 0.91% fail on Individual lamps
        • 0.91% fail on Side repeaters
    • 1.8% fail on Hazard warning
      • 1.4% fail on Switch
      • 0.91% fail on Lamp
    • 1.4% fail on Position lamps
      • 0.91% fail on Front lamps
      • 0.46% fail on Rear lamps
    • 1.4% fail on Headlamps
      • 0.91% fail on Headlamp
      • 0.46% fail on Headlamp defects which don't require an aim check on retest
        • 0.46% fail on Main beam 'tell-tale'
    • 0.91% fail on Battery
    • 0.46% fail on Horn
  • 10% fail on Suspension
    • 3.7% fail on Prescribed areas
      • 3.7% fail on Component mounting
      • 0.46% fail on Subframe mounting
    • 3.2% fail on Suspension arms
      • 2.7% fail on Pins/bushes/ball joints
      • 0.46% fail on Condition
    • 2.7% fail on Front suspension joints (2 times worse than other 1986 cars)
    • 0.46% fail on Coil springs
      • 0.46% fail on Condition
    • 0.46% fail on Radius arms
      • 0.46% fail on Pins/bushes/ball joints
    • 0.46% fail on Anti-roll bars
      • 0.46% fail on Linkage condition
    • 0.46% fail on Wheel bearings
      • 0.46% fail on Front
  • 7.8% fail on Brakes
    • 5.0% fail on Brake performance
      • 3.2% fail on Front wheels
      • 2.3% fail on Service brake performance
      • 1.8% fail on Rear wheels
      • 0.91% fail on Parking brake performance
    • 2.7% fail on Hydraulic systems
      • 1.8% fail on Components
        • 1.4% fail on Hoses
        • 0.46% fail on Pipes
      • 0.91% fail on Leaks
    • 1.8% fail on ABS (10 times worse than other 1986 cars)
  • 7.8% fail on Driver's view of the road
    • 4.1% fail on Washers
    • 3.7% fail on Wipers
  • 5.9% fail on Exhaust, Fuel and Emissions
    • 3.2% fail on Emissions
    • 2.3% fail on Exhaust system
    • 0.91% fail on Fuel system
      • 0.91% fail on System
  • 5.0% fail on Steering
    • 4.6% fail on Steering system
      • 3.2% fail on Track rod end
      • 0.46% fail on Steering box
      • 0.46% fail on Steering damper
      • 0.46% fail on Other components
        • 0.46% fail on Steering pivot point
    • 0.46% fail on Power steering
      • 0.46% fail on Operation
    • 0.46% fail on Prescribed areas
  • 4.1% fail on Body, Structure and General Items
    • 2.7% fail on Body condition
    • 0.91% fail on Vehicle structure
      • 0.91% fail on Chassis
    • 0.46% fail on Seats
      • 0.46% fail on Drivers
  • 2.7% fail on Tyres
    • 2.3% fail on Condition
    • 0.46% fail on Tread depth
  • 2.7% fail on Seat Belts and Supplementary Restraint Systems
    • 2.3% fail on Seat belts
      • 1.4% fail on Prescribed areas
      • 0.91% fail on Condition
    • 0.46% fail on Supplementary restraint systems
      • 0.46% fail on SRS Malfunction Indicator Lamp
  • 1.8% fail on Registration plates and VIN
    • 1.8% fail on Registration plate

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