Mercedes-Benz M-Class MOT Results

Registered in 1999
55.3% pass rate
from 465 tests in 2021
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 1999 cars and highlighted areas where the Mercedes-Benz M-Class is unusually good or bad.

  • 19% fail on Lamps, reflectors and electrical equipment (37% worse than other 1999 cars)
    • 5.2% fail on Stop lamp
    • 4.9% fail on Headlamps
      • 4.7% fail on Headlamp
      • 0.43% fail on Headlamp levelling device
    • 4.7% fail on Direction indicators (110% worse than other 1999 cars)
      • 4.7% fail on Flashing type (110% worse than other 1999 cars)
        • 3.0% fail on Individual direction indicators (110% worse than other 1999 cars)
        • 1.1% fail on All direction indicators (3 times worse than other 1999 cars)
        • 0.65% fail on Side repeaters
    • 3.9% fail on Headlamp aim
      • 3.4% fail on Headlamp aim
      • 0.43% fail on Headlamp aim not tested
    • 1.9% fail on Front and rear fog lamps
      • 1.9% fail on Rear fog lamp
        • 1.7% fail on Rear fog lamp
        • 0.43% fail on Switch (38 times worse than other 1999 cars)
    • 1.7% fail on Registration plate lamp(s)
    • 1.7% fail on Electrical equipment
      • 1.3% fail on Horn (2 times worse than other 1999 cars)
      • 0.43% fail on Battery(ies)
    • 0.22% fail on Position lamps
      • 0.22% fail on Position lamp
  • 16% fail on Brakes
    • 8.4% fail on Brake performance
      • 5.6% fail on Parking brake efficiency (sp) (67% worse than other 1999 cars)
        • 3.2% fail on Rbt (sp)
        • 2.4% fail on Decelerometer (sp) (12 times worse than other 1999 cars)
      • 1.5% fail on Service brake performance
        • 1.1% fail on Rbt
          • 1.1% fail on Service brake performance
        • 0.22% fail on Decelerometer
          • 0.22% fail on Service brake performance
        • 0.22% fail on Plate brake tester
          • 0.22% fail on Service brake performance
      • 1.1% fail on Brake performance not tested
      • 0.86% fail on Parking brake performance
        • 0.65% fail on Rbt
          • 0.43% fail on Parking brake performance
          • 0.22% fail on Parking (secondary brake performance)
        • 0.22% fail on Decelerometer
          • 0.22% fail on Parking (secondary brake performance)
      • 0.65% fail on Service Brake Efficiency (sp) (74% better than other 1999 cars)
        • 0.65% fail on Decelerometer (sp) (15 times worse than other 1999 cars)
    • 4.9% fail on Mechanical brake components (140% worse than other 1999 cars)
      • 4.7% fail on Brake linings and pads (2 times worse than other 1999 cars)
        • 4.7% fail on Brake pads (2 times worse than other 1999 cars)
      • 0.43% fail on Brake discs and drums
        • 0.43% fail on Brake discs
    • 4.1% fail on Rigid brake pipes
    • 3.4% fail on ABS / EBS / ESC (140% worse than other 1999 cars)
      • 2.6% fail on Electronic stability control (9 times worse than other 1999 cars)
      • 1.1% fail on Anti-lock braking system
      • 0.22% fail on Electronic braking system
    • 0.43% fail on Service brake pedal or hand lever
      • 0.22% fail on Pedal
      • 0.22% fail on Hand lever
    • 0.43% fail on Parking brake control
      • 0.43% fail on Lever
    • 0.22% fail on Other components and prescribed areas
      • 0.22% fail on Other components
  • 14% fail on Suspension
    • 6.7% fail on Springs (180% worse than other 1999 cars)
      • 6.7% fail on Coil springs (200% worse than other 1999 cars)
        • 6.7% fail on Coil spring (2 times worse than other 1999 cars)
    • 5.2% fail on Anti-roll bars
      • 1.9% fail on Linkage (3 times worse than other 1999 cars)
      • 1.7% fail on Pins and bushes (3 times worse than other 1999 cars)
      • 1.5% fail on Linkage pins and bushes (180% worse than other 1999 cars)
      • 0.43% fail on Attachment bracket and mounting
      • 0.22% fail on Anti-roll bar
    • 4.5% fail on Suspension arms
      • 3.2% fail on Ball joint
      • 1.1% fail on Ball joint dust cover
      • 0.22% fail on Suspension arm
    • 0.65% fail on Shock absorbers
    • 0.43% fail on Wheel bearings
    • 0.22% fail on Macpherson strut
      • 0.22% fail on Macpherson strut
    • 0.22% fail on Sub-frames
      • 0.22% fail on Sub-frame mounting prescribed areas
    • 0.22% fail on Other suspension component
      • 0.22% fail on Ball joint
  • 7.7% fail on Body, chassis, structure
    • 2.2% fail on Integral vehicle structure
      • 2.2% fail on Integral vehicle structure condition
    • 2.2% fail on Chassis
      • 2.2% fail on Chassis condition
    • 2.2% fail on Exhaust system
    • 0.86% fail on Body
      • 0.43% fail on Other body component
      • 0.22% fail on Body condition
      • 0.22% fail on Panel
    • 0.65% fail on Doors
      • 0.43% fail on Other passenger's door
        • 0.43% fail on Door condition
      • 0.22% fail on Driver's door
        • 0.22% fail on Door condition
    • 0.65% fail on Seats
      • 0.43% fail on Driver's seat
      • 0.43% fail on Passenger's seat
    • 0.43% fail on Transmission (85% better than other 1999 cars)
      • 0.22% fail on Drive shafts
        • 0.22% fail on Drive shaft
      • 0.22% fail on Prop shafts
        • 0.22% fail on Joints
    • 0.22% fail on Fuel system
      • 0.22% fail on Fuel cap/sealing device
    • 0.22% fail on Bumpers
  • 7.5% fail on Visibility
    • 4.7% fail on Washers
    • 2.6% fail on Wipers
    • 0.22% fail on Bonnet
    • 0.22% fail on View to rear
      • 0.22% fail on Mirrors
  • 6.7% fail on Steering (80% worse than other 1999 cars)
    • 5.4% fail on Steering linkage components (140% worse than other 1999 cars)
      • 5.2% fail on Track rod end (190% worse than other 1999 cars)
      • 0.22% fail on Ball joint
    • 1.3% fail on Steering gear
      • 1.3% fail on Steering rack
    • 0.43% fail on Power steering
      • 0.22% fail on Operation
      • 0.22% fail on Pipes and hoses
    • 0.22% fail on Steering play
      • 0.22% fail on Steering rack
  • 5.8% fail on Noise, emissions and leaks
    • 5.2% fail on Exhaust emissions
      • 4.5% fail on Spark ignition
        • 3.7% fail on Catalyst emissions
        • 1.1% fail on Emissions not tested
        • 0.43% fail on Emission control equipment
          • 0.43% fail on Catalytic converter
      • 0.86% fail on Compression ignition
        • 0.22% fail on Emission control equipment
          • 0.22% fail on Catalytic converter
        • 0.22% fail on Pre 01/07/2008 Non turbo
        • 0.22% fail on On or after 01/07/2008
        • 0.22% fail on Emissions not tested
    • 0.86% fail on Fluid leaks
      • 0.65% fail on Engine oil leaks
      • 0.22% fail on Transmission oil leaks
  • 4.7% fail on Tyres
    • 2.8% fail on Tread depth
    • 1.7% fail on Condition
    • 0.43% fail on Size/type
  • 2.8% fail on Seat belts and supplementary restraint systems
    • 1.9% fail on Seat belts
      • 1.3% fail on Condition
      • 0.86% fail on Prescribed areas
    • 1.1% fail on SRS malfunction indicator lamp
  • 1.5% fail on Road Wheels (3 times worse than other 1999 cars)
    • 1.5% fail on Attachment (5 times worse than other 1999 cars)
  • 1.3% fail on Identification of the vehicle
    • 1.3% fail on Registration plates

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