Mercedes-Benz M-Class MOT Results

Registered in 2008
67.7% pass rate
from 3,575 tests in 2020
(21% better than other 2008 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 2008 cars and highlighted areas where the Mercedes-Benz M-Class is unusually good or bad.

  • 15% fail on Lamps, reflectors and electrical equipment
    • 5.3% fail on Stop lamp (25% worse than other 2008 cars)
    • 3.6% fail on Direction indicators (82% worse than other 2008 cars)
      • 3.6% fail on Flashing type (82% worse than other 2008 cars)
        • 1.9% fail on Individual direction indicators (48% worse than other 2008 cars)
        • 1.7% fail on Side repeaters (170% worse than other 2008 cars)
        • 0.084% fail on All direction indicators
        • 0.028% fail on Switch
    • 3.0% fail on Position lamps
      • 2.9% fail on Position lamp
      • 0.028% fail on All position lamps
    • 2.5% fail on Headlamp aim (33% better than other 2008 cars)
      • 2.3% fail on Headlamp aim (33% better than other 2008 cars)
      • 0.25% fail on Headlamp aim not tested
    • 2.4% fail on Headlamps (32% better than other 2008 cars)
      • 2.3% fail on Headlamp (33% better than other 2008 cars)
      • 0.14% fail on Headlamp levelling device
    • 0.48% fail on Registration plate lamp(s) (80% better than other 2008 cars)
    • 0.28% fail on Front and rear fog lamps
      • 0.28% fail on Rear fog lamp
        • 0.28% fail on Rear fog lamp
    • 0.22% fail on Electrical equipment (61% better than other 2008 cars)
      • 0.14% fail on Horn
      • 0.056% fail on Trailer electrical socket
      • 0.056% fail on Electrical wiring
    • 0.028% fail on Hazard warning
      • 0.028% fail on Switch
    • 0.028% fail on Rear reflectors
  • 11% fail on Brakes (22% worse than other 2008 cars)
    • 5.7% fail on Brake performance (26% worse than other 2008 cars)
      • 3.4% fail on Parking brake efficiency (sp) (61% worse than other 2008 cars)
        • 1.6% fail on Rbt (sp)
        • 1.6% fail on Decelerometer (sp) (16 times worse than other 2008 cars)
        • 0.22% fail on Gradient tester (sp) (32 times worse than other 2008 cars)
      • 2.0% fail on Service brake performance
        • 1.9% fail on Rbt
          • 1.8% fail on Service brake performance
          • 0.20% fail on Service brake imbalance (59% better than other 2008 cars)
        • 0.084% fail on Decelerometer (6 times worse than other 2008 cars)
          • 0.084% fail on Service brake performance (6 times worse than other 2008 cars)
        • 0.028% fail on Plate brake tester
          • 0.028% fail on Service brake performance
      • 0.48% fail on Brake performance not tested (2 times worse than other 2008 cars)
      • 0.45% fail on Parking brake performance (52% better than other 2008 cars)
        • 0.42% fail on Rbt (53% better than other 2008 cars)
          • 0.34% fail on Parking brake performance (57% better than other 2008 cars)
          • 0.084% fail on Parking (secondary brake performance)
        • 0.028% fail on Decelerometer
          • 0.028% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.28% fail on Service Brake Efficiency (sp)
        • 0.25% fail on Rbt (sp)
          • 0.14% fail on Service brake imbalance (68% better than other 2008 cars)
          • 0.11% fail on Service brake performance
        • 0.028% fail on Decelerometer (sp)
    • 4.1% fail on Rigid brake pipes (2 times worse than other 2008 cars)
    • 2.6% fail on Mechanical brake components (26% better than other 2008 cars)
      • 1.7% fail on Brake linings and pads (32% better than other 2008 cars)
        • 1.7% fail on Brake pads (32% better than other 2008 cars)
        • 0.028% fail on Brake linings
      • 0.62% fail on Brake cables, rods, levers and linkages (3 times worse than other 2008 cars)
        • 0.59% fail on Cable (5 times worse than other 2008 cars)
        • 0.028% fail on Lever
      • 0.39% fail on Brake discs and drums (67% better than other 2008 cars)
        • 0.39% fail on Brake discs (67% better than other 2008 cars)
    • 1.1% fail on Flexible brake hoses (5 times worse than other 2008 cars)
    • 0.50% fail on ABS / EBS / ESC
      • 0.36% fail on Anti-lock braking system
      • 0.20% fail on Electronic stability control
    • 0.36% fail on Parking brake control
      • 0.36% fail on Lever
    • 0.17% fail on Hydraulic systems
      • 0.17% fail on Brake fluid
    • 0.14% fail on Service brake pedal or hand lever
      • 0.084% fail on Pedal
      • 0.056% fail on Hand lever
    • 0.11% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.084% fail on Hydraulic brake callipers
      • 0.028% fail on Hydraulic brake cylinder
  • 6.7% fail on Suspension (53% better than other 2008 cars)
    • 4.5% fail on Springs
      • 4.5% fail on Coil springs
        • 4.5% fail on Coil spring
    • 1.5% fail on Shock absorbers
    • 0.36% fail on Suspension arms (92% better than other 2008 cars)
      • 0.22% fail on Pins and bushes (90% better than other 2008 cars)
      • 0.056% fail on Ball joint (97% better than other 2008 cars)
      • 0.056% fail on Ball joint dust cover (88% better than other 2008 cars)
      • 0.028% fail on Suspension arm
    • 0.20% fail on Wheel bearings (75% better than other 2008 cars)
    • 0.20% fail on Anti-roll bars (95% better than other 2008 cars)
      • 0.056% fail on Linkage
      • 0.056% fail on Linkage ball joint dust cover (96% better than other 2008 cars)
      • 0.028% fail on Ball joint
      • 0.028% fail on Linkage ball joints
      • 0.028% fail on Ball joint dust cover
    • 0.11% fail on Air/gas/fluid suspension (4 times worse than other 2008 cars)
      • 0.056% fail on Bellows (41 times worse than other 2008 cars)
      • 0.028% fail on Operation
      • 0.028% fail on Suspension unit
    • 0.084% fail on Other suspension component
      • 0.028% fail on Pins and bushes
      • 0.028% fail on Ball joint
      • 0.028% fail on Ball joint dust cover
  • 4.4% fail on Tyres (37% better than other 2008 cars)
    • 2.4% fail on Condition
    • 2.2% fail on Tread depth (47% better than other 2008 cars)
    • 0.056% fail on Size/type
  • 3.1% fail on Noise, emissions and leaks (39% better than other 2008 cars)
    • 2.5% fail on Exhaust emissions (47% better than other 2008 cars)
      • 2.1% fail on Compression ignition
        • 0.98% fail on Pre 01/07/2008 Turbo (88% worse than other 2008 cars)
        • 0.62% fail on On or after 01/07/2008
        • 0.50% fail on Malfunction indicator lamp
        • 0.056% fail on Emissions not tested
        • 0.028% fail on Emission control equipment
          • 0.028% fail on Catalytic converter
        • 0.028% fail on Pre 01/07/2008 Non turbo
      • 0.39% fail on Spark ignition (87% better than other 2008 cars)
        • 0.36% fail on Malfunction indicator lamp (77% better than other 2008 cars)
        • 0.028% fail on Non catalyst emissions
    • 0.62% fail on Fluid leaks (78% worse than other 2008 cars)
      • 0.53% fail on Engine oil leaks (90% worse than other 2008 cars)
      • 0.056% fail on Transmission oil leaks
      • 0.028% fail on Other leaks
    • 0.028% fail on Noise suppression
      • 0.028% fail on Undertray
  • 2.4% fail on Visibility (60% better than other 2008 cars)
    • 1.3% fail on Wipers (53% better than other 2008 cars)
    • 0.84% fail on Washers (71% better than other 2008 cars)
    • 0.17% fail on Driver's view
    • 0.11% fail on View to rear
      • 0.11% fail on Mirrors
    • 0.056% fail on Condition of glass
      • 0.028% fail on Windscreen
      • 0.028% fail on Window
  • 1.8% fail on Body, chassis, structure (67% better than other 2008 cars)
    • 1.2% fail on Transmission (51% better than other 2008 cars)
      • 1.1% fail on Drive shafts (52% better than other 2008 cars)
        • 1.1% fail on Joints (51% better than other 2008 cars)
      • 0.056% fail on Belts (15 times worse than other 2008 cars)
      • 0.028% fail on Prop shafts
        • 0.028% fail on Joints
    • 0.22% fail on Fuel system
      • 0.11% fail on System
      • 0.056% fail on Pipe
      • 0.028% fail on Hose
      • 0.028% fail on Fuel cap/sealing device
    • 0.17% fail on Exhaust system (92% better than other 2008 cars)
    • 0.084% fail on Seats
      • 0.084% fail on Driver's seat
    • 0.084% fail on Boot lid
      • 0.084% fail on Boot lid condition
    • 0.056% fail on Body
      • 0.028% fail on Panel
      • 0.028% fail on Other body component
    • 0.028% fail on Bumpers
    • 0.028% fail on Doors
      • 0.028% fail on Front passenger's door
        • 0.028% fail on Door condition
    • 0.028% fail on Undertray
  • 1.3% fail on Seat belts and supplementary restraint systems
    • 0.87% fail on Seat belts
      • 0.78% fail on Condition (110% worse than other 2008 cars)
      • 0.084% fail on Requirements
    • 0.53% fail on SRS malfunction indicator lamp
  • 0.81% fail on Identification of the vehicle
    • 0.81% fail on Registration plates
  • 0.50% fail on Road Wheels
    • 0.39% fail on Attachment
    • 0.11% fail on Condition
  • 0.36% fail on Steering (84% better than other 2008 cars)
    • 0.20% fail on Power steering
      • 0.11% fail on Other components
      • 0.084% fail on Operation
    • 0.17% fail on Steering gear
      • 0.14% fail on Steering rack
      • 0.028% fail on Steering box
  • 0.028% fail on Seat belt installation check
    • 0.028% fail on Anchorages
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