Mercedes-Benz S-Class MOT Results

Registered in 1986
68.4% pass rate
from 225 tests in 2020
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.

  • 15% fail on Lamps, reflectors and electrical equipment
    • 5.8% fail on Headlamp aim
      • 5.8% fail on Headlamp aim
      • 0.44% fail on Headlamp aim not tested
    • 2.7% fail on Direction indicators
      • 2.7% fail on Flashing type
        • 2.2% fail on Individual direction indicators
        • 0.44% fail on All direction indicators
    • 2.2% fail on Headlamps
      • 1.3% fail on Headlamp
      • 0.89% fail on Headlamp levelling device (17 times worse than other 1986 cars)
    • 2.2% fail on Front and rear fog lamps
      • 1.8% fail on Rear fog lamp
        • 1.8% fail on Rear fog lamp
      • 0.44% fail on Front fog lamps
        • 0.44% fail on Front fog lamps
    • 2.2% fail on Electrical equipment
      • 1.3% fail on Battery(ies)
      • 0.89% fail on Horn
    • 1.3% fail on Position lamps
      • 1.3% fail on Position lamp
    • 1.3% fail on Stop lamp
    • 1.3% fail on Hazard warning
      • 1.3% fail on Switch
    • 1.3% fail on Registration plate lamp(s)
    • 0.44% fail on Mandatory tell-tales
      • 0.44% fail on Rear fog lamp tell-tale
  • 13% fail on Suspension
    • 6.2% fail on Suspension arms (170% worse than other 1986 cars)
      • 4.4% fail on Ball joint dust cover (5 times worse than other 1986 cars)
      • 0.89% fail on Suspension arm
      • 0.89% fail on Ball joint
      • 0.44% fail on Pins and bushes
    • 5.8% fail on Component mounting prescribed areas
    • 1.8% fail on Other suspension component
      • 1.3% fail on Ball joint dust cover (4 times worse than other 1986 cars)
      • 0.44% fail on Other suspension component
    • 1.3% fail on Springs
      • 0.89% fail on Coil springs
        • 0.89% fail on Coil spring
      • 0.44% fail on Spring mounting prescribed areas
    • 0.89% fail on Anti-roll bars
      • 0.44% fail on Attachment bracket and mounting
      • 0.44% fail on Linkage pins and bushes
    • 0.89% fail on Sub-frames
      • 0.89% fail on Sub-frame mounting prescribed areas
    • 0.44% fail on Axles
      • 0.44% fail on Swivel joints/housing
    • 0.44% fail on Air/gas/fluid suspension
      • 0.44% fail on Suspension unit
  • 8.0% fail on Body, chassis, structure
    • 3.6% fail on Exhaust system
    • 1.3% fail on Integral vehicle structure
      • 1.3% fail on Integral vehicle structure condition
    • 1.3% fail on Chassis
      • 1.3% fail on Chassis condition
    • 0.89% fail on Fuel system
      • 0.89% fail on Pipe
    • 0.44% fail on Body
      • 0.44% fail on Other body component
    • 0.44% fail on Seats
      • 0.44% fail on Driver's seat
  • 7.1% fail on Brakes
    • 4.9% fail on Brake performance
      • 3.6% fail on Service brake performance
        • 3.6% fail on Rbt
          • 3.6% fail on Service brake performance
      • 2.2% fail on Parking brake efficiency (sp)
        • 2.2% fail on Rbt (sp)
      • 1.3% fail on Service Brake Efficiency (sp)
        • 1.3% fail on Rbt (sp)
          • 0.89% fail on Service brake performance
          • 0.44% fail on Service brake imbalance
      • 1.3% fail on Parking brake performance
        • 1.3% fail on Rbt
          • 1.3% fail on Parking brake performance
    • 1.8% fail on Rigid brake pipes
    • 0.89% fail on Mechanical brake components
      • 0.89% fail on Brake linings and pads
        • 0.89% fail on Brake pads
    • 0.89% fail on ABS / EBS / ESC (5 times worse than other 1986 cars)
      • 0.89% fail on Anti-lock braking system (5 times worse than other 1986 cars)
    • 0.44% fail on Service brake pedal or hand lever
      • 0.44% fail on Hand lever
    • 0.44% fail on Flexible brake hoses
  • 6.7% fail on Visibility
    • 4.9% fail on Washers
    • 2.2% fail on Wipers
  • 5.3% fail on Noise, emissions and leaks
    • 4.9% fail on Exhaust emissions
      • 4.4% fail on Spark ignition
        • 4.4% fail on Non catalyst emissions
      • 0.44% fail on Compression ignition
        • 0.44% fail on Pre 01/07/2008 Turbo
    • 0.89% fail on Fluid leaks
      • 0.44% fail on Engine oil leaks
      • 0.44% fail on Other leaks
  • 4.0% fail on Steering
    • 2.7% fail on Steering linkage components
      • 2.2% fail on Track rod end
      • 0.44% fail on Ball joint
      • 0.44% fail on Other components
        • 0.44% fail on Steering linkage
    • 0.89% fail on Prescribed areas (5 times worse than other 1986 cars)
    • 0.44% fail on Steering gear
      • 0.44% fail on Steering box
  • 2.2% fail on Tyres
    • 1.3% fail on Condition
    • 0.89% fail on Tread depth
  • 0.89% fail on Seat belts and supplementary restraint systems
    • 0.89% fail on Seat belts
      • 0.44% fail on Prescribed areas
      • 0.44% fail on Condition
  • 0.44% fail on Identification of the vehicle
    • 0.44% fail on Registration plates
  • 0.44% fail on Road Wheels
    • 0.44% fail on Attachment

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