Mercedes-Benz S-Class MOT Results

Registered in 1999
62.3% pass rate
from 430 tests in 2020
(17% better than other 1999 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 1999 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 15% fail on Suspension
    • 9.1% fail on Suspension arms (81% worse than other 1999 cars)
      • 4.4% fail on Ball joint (92% worse than other 1999 cars)
      • 3.3% fail on Pins and bushes
      • 3.3% fail on Ball joint dust cover (2 times worse than other 1999 cars)
      • 0.23% fail on Attachment bracket and mounting
    • 4.2% fail on Component mounting prescribed areas
    • 1.6% fail on Anti-roll bars (62% better than other 1999 cars)
      • 0.70% fail on Linkage pins and bushes
      • 0.47% fail on Linkage ball joints
      • 0.47% fail on Linkage ball joint dust cover
    • 1.2% fail on Other suspension component
      • 0.70% fail on Ball joint
      • 0.47% fail on Ball joint dust cover
    • 0.70% fail on Sub-frames
      • 0.70% fail on Sub-frame mounting prescribed areas
    • 0.70% fail on Air/gas/fluid suspension (15 times worse than other 1999 cars)
      • 0.70% fail on Operation (42 times worse than other 1999 cars)
    • 0.47% fail on Springs (79% better than other 1999 cars)
      • 0.47% fail on Coil springs
        • 0.47% fail on Coil spring
    • 0.47% fail on Suspension rods
      • 0.47% fail on Pins and bushes (7 times worse than other 1999 cars)
    • 0.23% fail on Wheel bearings
    • 0.23% fail on Shock absorbers
    • 0.23% fail on Macpherson strut
      • 0.23% fail on Ball joint
  • 15% fail on Lamps, reflectors and electrical equipment
    • 4.2% fail on Direction indicators
      • 4.2% fail on Flashing type
        • 3.0% fail on Individual direction indicators
        • 0.70% fail on All direction indicators
        • 0.70% fail on Side repeaters
    • 3.5% fail on Headlamps
      • 3.5% fail on Headlamp
    • 2.6% fail on Headlamp aim
      • 2.3% fail on Headlamp aim
      • 0.23% fail on Headlamp aim not tested
    • 1.9% fail on Stop lamp (61% better than other 1999 cars)
    • 1.6% fail on Position lamps
      • 1.6% fail on Position lamp
    • 1.6% fail on Registration plate lamp(s)
    • 1.2% fail on Front and rear fog lamps
      • 1.2% fail on Rear fog lamp
        • 1.2% fail on Rear fog lamp
        • 0.23% fail on Switch
    • 0.47% fail on Electrical equipment
      • 0.23% fail on Electrical wiring
      • 0.23% fail on Horn
    • 0.23% fail on Hazard warning
      • 0.23% fail on Switch
  • 12% fail on Brakes
    • 5.3% fail on Brake performance
      • 4.0% fail on Parking brake efficiency (sp)
        • 4.0% fail on Rbt (sp)
      • 1.4% fail on Parking brake performance
        • 1.4% fail on Rbt
          • 1.2% fail on Parking brake performance
          • 0.23% fail on Parking (secondary brake performance)
      • 1.2% fail on Service brake performance
        • 1.2% fail on Rbt
          • 1.2% fail on Service brake performance
          • 0.23% fail on Service brake imbalance
      • 0.93% fail on Service Brake Efficiency (sp)
        • 0.93% fail on Rbt (sp)
          • 0.70% fail on Service brake imbalance
          • 0.23% fail on Service brake performance
      • 0.23% fail on Brake performance not tested
    • 3.7% fail on Rigid brake pipes
    • 1.9% fail on Mechanical brake components
      • 1.6% fail on Brake linings and pads
        • 1.6% fail on Brake pads
      • 0.23% fail on Brake discs and drums
        • 0.23% fail on Brake discs
    • 1.4% fail on ABS / EBS / ESC
      • 1.2% fail on Anti-lock braking system
      • 0.70% fail on Electronic stability control
    • 0.93% fail on Parking brake control
      • 0.93% fail on Lever
    • 0.70% fail on Service brake pedal or hand lever
      • 0.70% fail on Pedal
      • 0.23% fail on Hand lever
  • 8.1% fail on Visibility
    • 4.4% fail on Wipers
    • 3.3% fail on Washers
    • 0.23% fail on Bonnet
    • 0.23% fail on Condition of glass
      • 0.23% fail on Windscreen
    • 0.23% fail on View to rear
      • 0.23% fail on Mirrors
  • 7.4% fail on Body, chassis, structure
    • 2.6% fail on Integral vehicle structure
      • 2.6% fail on Integral vehicle structure condition
    • 1.9% fail on Chassis
      • 1.9% fail on Chassis condition
    • 1.2% fail on Exhaust system (69% better than other 1999 cars)
    • 0.93% fail on Body
      • 0.70% fail on Panel
      • 0.23% fail on Other body component
    • 0.47% fail on Fuel system
      • 0.47% fail on System
    • 0.47% fail on Doors
      • 0.47% fail on Front passenger's door
        • 0.47% fail on Door condition
    • 0.23% fail on Transmission
      • 0.23% fail on Prop shafts
        • 0.23% fail on Flexible couplings
    • 0.23% fail on Engine mounting
      • 0.23% fail on Bracket
    • 0.23% fail on Cabs
      • 0.23% fail on Prescribed areas
  • 7.0% fail on Seat belts and supplementary restraint systems
    • 4.2% fail on Seat belts
      • 3.3% fail on Prescribed areas
      • 0.93% fail on Condition
    • 3.7% fail on SRS malfunction indicator lamp (140% worse than other 1999 cars)
  • 4.7% fail on Tyres
    • 3.0% fail on Tread depth
    • 1.4% fail on Condition
    • 0.47% fail on Size/type
  • 2.6% fail on Noise, emissions and leaks (71% better than other 1999 cars)
    • 1.9% fail on Exhaust emissions (78% better than other 1999 cars)
      • 1.9% fail on Spark ignition (76% better than other 1999 cars)
        • 0.93% fail on Catalyst emissions (85% better than other 1999 cars)
        • 0.70% fail on Emissions not tested
        • 0.23% fail on Malfunction indicator lamp
    • 1.2% fail on Fluid leaks
      • 1.2% fail on Engine oil leaks
  • 2.1% fail on Steering
    • 1.9% fail on Steering linkage components
      • 1.6% fail on Track rod end
      • 0.23% fail on Drag link end
    • 0.23% fail on Power steering
      • 0.23% fail on Other components
  • 1.2% fail on Road Wheels
    • 0.93% fail on Attachment
    • 0.23% fail on Condition
  • 0.70% fail on Identification of the vehicle
    • 0.70% fail on Registration plates
  • 0.47% fail on Speedometer and speed limiter (15 times worse than other 1999 cars)
    • 0.47% fail on Speedometer (16 times worse than other 1999 cars)
  • 0.23% fail on Seat belt installation check
    • 0.23% fail on Anchorages

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