Mercedes-Benz S-Class MOT Results

Registered in 1989
70.3% pass rate
from 704 tests in 2017
(16% better than other 1989 cars)
Pass rate by mileage
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 1989 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 15% fail on Lamps, Reflectors and Electrical Equipment (24% better than other 1989 cars)
    • 4.3% fail on Headlamp aim
    • 3.3% fail on Rear fog lamp
      • 2.8% fail on Fog lamp
      • 0.99% fail on Tell tale
      • 0.43% fail on Switch
    • 2.7% fail on Position lamps
      • 1.7% fail on Front lamps
      • 1.3% fail on Rear lamps
    • 2.6% fail on Registration plate lamp
    • 2.0% fail on Battery
    • 1.8% fail on Headlamps
      • 1.8% fail on Headlamp
      • 0.14% fail on Headlamp defects which do require an aim check on retest
        • 0.14% fail on Main beam 'tell-tale'
    • 1.7% fail on Stop lamp
    • 1.6% fail on Direction indicators (62% better than other 1989 cars)
      • 1.6% fail on Flashing type (62% better than other 1989 cars)
        • 0.71% fail on Individual lamps
        • 0.71% fail on Side repeaters
        • 0.28% fail on All direction indicators
    • 0.99% fail on Hazard warning
      • 0.57% fail on Lamp
      • 0.43% fail on Switch
      • 0.14% fail on Tell tale
    • 0.43% fail on Horn (75% better than other 1989 cars)
    • 0.14% fail on Rear reflectors
  • 9.9% fail on Brakes
    • 6.5% fail on Brake performance
      • 2.6% fail on Rear wheels
      • 2.1% fail on Front wheels
      • 2.1% fail on Parking brake performance
      • 0.85% fail on Service brake performance
      • 0.57% fail on Brake performance not tested
      • 0.43% fail on Brake imbalance
    • 2.1% fail on Hydraulic systems (53% better than other 1989 cars)
      • 2.0% fail on Components (48% better than other 1989 cars)
        • 1.1% fail on Pipes
        • 0.71% fail on Hoses
        • 0.14% fail on Reservoirs
        • 0.14% fail on Servos
      • 0.43% fail on Leaks
      • 0.14% fail on Brake fluid warning lamp
    • 1.6% fail on ABS (3 times worse than other 1989 cars)
    • 0.85% fail on Parking brake
      • 0.85% fail on Condition
    • 0.85% fail on Hub components
      • 0.43% fail on Brake discs
      • 0.28% fail on Brake pads
      • 0.14% fail on Brake back plates
      • 0.14% fail on Brake calipers
    • 0.14% fail on Additional braking devices
    • 0.14% fail on Restricted movement
    • 0.14% fail on Prescribed areas
      • 0.14% fail on Master cylinder/servo mounting
  • 7.7% fail on Suspension (44% better than other 1989 cars)
    • 3.3% fail on Prescribed areas (44% better than other 1989 cars)
      • 2.8% fail on Component mounting
      • 0.71% fail on Subframe mounting
      • 0.14% fail on Spring mounting
    • 1.6% fail on Suspension arms
      • 1.4% fail on Pins/bushes/ball joints
      • 0.14% fail on Condition
    • 1.3% fail on Anti-roll bars
      • 0.57% fail on Linkage pins/bushes/ball joints
      • 0.43% fail on Pins/bushes/ball joints
      • 0.28% fail on Attachment
    • 0.99% fail on Coil springs
      • 0.99% fail on Condition
    • 0.57% fail on Front suspension joints
    • 0.43% fail on Sub-frames
      • 0.28% fail on Condition
      • 0.14% fail on Pins/bushes/ball joints
    • 0.43% fail on Wheel bearings (80% better than other 1989 cars)
      • 0.43% fail on Front
    • 0.43% fail on Shock absorbers
      • 0.43% fail on Condition
    • 0.14% fail on Drive shafts
      • 0.14% fail on Front drive shafts
        • 0.14% fail on Constant velocity joints
  • 7.4% fail on Exhaust, Fuel and Emissions
    • 3.1% fail on Exhaust system
    • 2.8% fail on Emissions
    • 1.7% fail on Fuel system
      • 0.99% fail on System
      • 0.57% fail on Pipe
      • 0.14% fail on Hose
      • 0.14% fail on Cap
    • 0.43% fail on Emissions not tested
  • 7.1% fail on Driver's view of the road
    • 4.0% fail on Washers
    • 3.8% fail on Wipers
    • 0.28% fail on Windscreen
    • 0.14% fail on Bonnet
    • 0.14% fail on Mirrors
  • 4.0% fail on Body, Structure and General Items
    • 2.1% fail on Body condition
    • 0.99% fail on Seats
      • 0.99% fail on Drivers
      • 0.57% fail on Passengers
    • 0.85% fail on Vehicle structure
      • 0.85% fail on Chassis
    • 0.28% fail on Doors
      • 0.28% fail on Passengers other
    • 0.14% fail on Speedometer
    • 0.14% fail on Body security
    • 0.14% fail on Load security
      • 0.14% fail on Bootlid
  • 3.0% fail on Tyres
    • 2.1% fail on Condition
    • 0.85% fail on Tread depth
    • 0.14% fail on Size/type
  • 2.1% fail on Steering (58% better than other 1989 cars)
    • 1.8% fail on Steering system (53% better than other 1989 cars)
      • 1.4% fail on Track rod end
      • 0.14% fail on Steering box
      • 0.14% fail on Drag link end
      • 0.14% fail on Steering damper
    • 0.14% fail on Power steering
      • 0.14% fail on Pipes and hoses
      • 0.14% fail on Other components
    • 0.14% fail on Prescribed areas
  • 1.4% fail on Seat Belts and Supplementary Restraint Systems (55% better than other 1989 cars)
    • 1.4% fail on Seat belts (55% better than other 1989 cars)
      • 1.1% fail on Prescribed areas
      • 0.14% fail on Requirements
      • 0.14% fail on Condition
  • 0.99% fail on Registration plates and VIN
    • 0.99% fail on Registration plate
    • 0.14% fail on Vehicle Identification Number

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