Mercedes-Benz S-Class MOT Results

Registered in 1992
68.1% pass rate
from 577 tests in 2017
(18% better than other 1992 cars)
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 1992 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 17% fail on Lamps, Reflectors and Electrical Equipment
    • 5.9% fail on Position lamps
      • 3.3% fail on Rear lamps (85% worse than other 1992 cars)
      • 2.9% fail on Front lamps
      • 0.35% fail on All position lamps
    • 4.3% fail on Headlamp aim
    • 3.6% fail on Direction indicators
      • 3.6% fail on Flashing type
        • 1.7% fail on Side repeaters
        • 1.6% fail on Individual lamps
        • 0.87% fail on All direction indicators
    • 2.9% fail on Rear fog lamp
      • 2.8% fail on Fog lamp
      • 0.17% fail on Tell tale
      • 0.17% fail on Switch
    • 2.6% fail on Stop lamp
    • 2.3% fail on Registration plate lamp
    • 1.9% fail on Headlamps
      • 1.6% fail on Headlamp
      • 0.35% fail on Headlamp defects which don't require an aim check on retest
        • 0.17% fail on Headlamp cleaning device
        • 0.17% fail on Main beam 'tell-tale'
    • 0.69% fail on Horn
    • 0.52% fail on Battery (73% better than other 1992 cars)
    • 0.35% fail on Hazard warning
      • 0.17% fail on Lamp
      • 0.17% fail on Switch
  • 10% fail on Suspension (34% better than other 1992 cars)
    • 3.3% fail on Prescribed areas (43% better than other 1992 cars)
      • 1.7% fail on Component mounting (62% better than other 1992 cars)
      • 1.4% fail on Subframe mounting
      • 0.87% fail on Spring mounting
    • 2.1% fail on Coil springs
      • 1.9% fail on Condition
      • 0.17% fail on Location
    • 1.7% fail on Suspension arms
      • 1.7% fail on Pins/bushes/ball joints
    • 1.4% fail on Wheel bearings
      • 0.87% fail on Front
      • 0.52% fail on Rear
    • 1.0% fail on Front suspension joints
    • 0.87% fail on Anti-roll bars
      • 0.52% fail on Linkage pins/bushes/ball joints
      • 0.35% fail on Pins/bushes/ball joints
      • 0.17% fail on Attachment
    • 0.69% fail on Shock absorbers
      • 0.69% fail on Condition
    • 0.35% fail on Macpherson strut
      • 0.35% fail on Condition
    • 0.35% fail on Drive shafts (87% better than other 1992 cars)
      • 0.17% fail on Front drive shafts
        • 0.17% fail on Constant velocity joints
      • 0.17% fail on Any drive shaft which is part of the suspension
        • 0.17% fail on Drive shafts
    • 0.17% fail on Trailing arms
      • 0.17% fail on Pins/bushes/ball joints
    • 0.17% fail on Sub-frames
      • 0.17% fail on Condition
    • 0.17% fail on Axles
      • 0.17% fail on Swivel joints/housing
  • 9.2% fail on Brakes (36% better than other 1992 cars)
    • 4.0% fail on Hydraulic systems
      • 3.6% fail on Components
        • 2.9% fail on Pipes
        • 0.69% fail on Hoses
        • 0.17% fail on Reservoirs
      • 0.69% fail on Leaks
      • 0.17% fail on Operation
    • 4.0% fail on Brake performance (57% better than other 1992 cars)
      • 1.6% fail on Rear wheels (62% better than other 1992 cars)
      • 1.0% fail on Service brake performance
      • 1.0% fail on Parking brake performance (72% better than other 1992 cars)
      • 0.52% fail on Front wheels (85% better than other 1992 cars)
      • 0.35% fail on Brake imbalance
      • 0.17% fail on Brake performance not tested
    • 1.6% fail on ABS (2 times worse than other 1992 cars)
    • 1.2% fail on Hub components
      • 1.2% fail on Brake pads
    • 0.69% fail on Parking brake
      • 0.69% fail on Condition
  • 7.3% fail on Exhaust, Fuel and Emissions
    • 3.6% fail on Emissions
    • 2.4% fail on Exhaust system
    • 2.3% fail on Fuel system
      • 1.0% fail on System
      • 0.87% fail on Pipe
      • 0.35% fail on Cap
      • 0.17% fail on Hose
    • 0.17% fail on Emissions not tested
  • 5.0% fail on Driver's view of the road (37% better than other 1992 cars)
    • 3.1% fail on Wipers
    • 1.2% fail on Washers (68% better than other 1992 cars)
    • 0.52% fail on Mirrors
    • 0.35% fail on Windscreen
  • 4.5% fail on Steering
    • 4.3% fail on Steering system
      • 3.5% fail on Track rod end (110% worse than other 1992 cars)
      • 0.52% fail on Ball joint
      • 0.52% fail on Drag link end
      • 0.17% fail on Steering box
    • 0.17% fail on Power steering
      • 0.17% fail on Operation
      • 0.17% fail on Other components
  • 4.2% fail on Tyres
    • 2.8% fail on Condition
    • 1.6% fail on Tread depth
  • 3.1% fail on Body, Structure and General Items
    • 1.4% fail on Body condition
    • 1.0% fail on Seats
      • 0.87% fail on Drivers
      • 0.52% fail on Passengers
    • 0.52% fail on Vehicle structure
      • 0.52% fail on Chassis
    • 0.17% fail on Engine mountings
    • 0.17% fail on Speedometer
  • 1.2% fail on Seat Belts and Supplementary Restraint Systems (68% better than other 1992 cars)
    • 1.0% fail on Seat belts (72% better than other 1992 cars)
      • 0.69% fail on Prescribed areas (78% better than other 1992 cars)
      • 0.35% fail on Condition
    • 0.17% fail on Supplementary restraint systems
      • 0.17% fail on SRS Malfunction Indicator Lamp
  • 0.69% fail on Road Wheels
    • 0.69% fail on Attachment
  • 0.69% fail on Registration plates and VIN
    • 0.69% fail on Registration plate

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