Mercedes-Benz M-Class MOT Results

Registered in 2001
54.9% pass rate
from 1,935 tests in 2020
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 2001 cars and highlighted areas where the Mercedes-Benz M-Class is unusually good or bad.

  • 23% fail on Lamps, reflectors and electrical equipment (17% worse than other 2001 cars)
    • 6.5% fail on Headlamps (36% worse than other 2001 cars)
      • 6.3% fail on Headlamp (44% worse than other 2001 cars)
      • 0.26% fail on Headlamp levelling device
    • 5.3% fail on Stop lamp
    • 5.0% fail on Direction indicators (99% worse than other 2001 cars)
      • 5.0% fail on Flashing type (99% worse than other 2001 cars)
        • 3.2% fail on Individual direction indicators (94% worse than other 2001 cars)
        • 1.6% fail on Side repeaters (99% worse than other 2001 cars)
        • 0.41% fail on All direction indicators
    • 4.5% fail on Headlamp aim
      • 4.0% fail on Headlamp aim
      • 0.57% fail on Headlamp aim not tested
    • 3.3% fail on Electrical equipment (2 times worse than other 2001 cars)
      • 3.0% fail on Horn (4 times worse than other 2001 cars)
      • 0.21% fail on Battery(ies)
      • 0.052% fail on Trailer electrical socket
    • 3.1% fail on Position lamps
      • 3.1% fail on Position lamp
    • 2.9% fail on Registration plate lamp(s)
    • 1.9% fail on Front and rear fog lamps
      • 1.9% fail on Rear fog lamp
        • 1.8% fail on Rear fog lamp
        • 0.41% fail on Switch (7 times worse than other 2001 cars)
    • 0.21% fail on Mandatory tell-tales
      • 0.16% fail on Rear fog lamp tell-tale
      • 0.052% fail on Main beam tell-tale
    • 0.052% fail on Rear reflectors
  • 18% fail on Brakes (19% worse than other 2001 cars)
    • 8.8% fail on Brake performance
      • 6.7% fail on Parking brake efficiency (sp) (57% worse than other 2001 cars)
        • 3.9% fail on Rbt (sp)
        • 2.7% fail on Decelerometer (sp) (14 times worse than other 2001 cars)
        • 0.052% fail on Gradient tester (sp)
      • 1.8% fail on Parking brake performance
        • 1.6% fail on Rbt
          • 1.4% fail on Parking brake performance
          • 0.16% fail on Parking (secondary brake performance)
        • 0.16% fail on Decelerometer (4 times worse than other 2001 cars)
          • 0.16% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles) (7 times worse than other 2001 cars)
        • 0.052% fail on Plate brake tester
          • 0.052% fail on Parking (secondary brake performance)
      • 1.8% fail on Service brake performance (47% better than other 2001 cars)
        • 1.7% fail on Rbt (47% better than other 2001 cars)
          • 1.3% fail on Service brake performance (49% better than other 2001 cars)
          • 0.41% fail on Service brake imbalance
        • 0.052% fail on Decelerometer
          • 0.052% fail on Service brake performance
      • 0.67% fail on Brake performance not tested (120% worse than other 2001 cars)
      • 0.57% fail on Service Brake Efficiency (sp) (76% better than other 2001 cars)
        • 0.36% fail on Rbt (sp) (85% better than other 2001 cars)
          • 0.21% fail on Service brake performance (79% better than other 2001 cars)
          • 0.16% fail on Service brake imbalance (90% better than other 2001 cars)
        • 0.21% fail on Decelerometer (sp) (6 times worse than other 2001 cars)
    • 5.5% fail on Mechanical brake components (68% worse than other 2001 cars)
      • 4.7% fail on Brake linings and pads (120% worse than other 2001 cars)
        • 4.7% fail on Brake pads (120% worse than other 2001 cars)
      • 0.98% fail on Brake discs and drums
        • 0.98% fail on Brake discs
      • 0.26% fail on Brake cables, rods, levers and linkages
        • 0.21% fail on Cable
        • 0.052% fail on Brake slack adjuster
    • 4.8% fail on Rigid brake pipes
    • 4.1% fail on ABS / EBS / ESC (140% worse than other 2001 cars)
      • 2.5% fail on Anti-lock braking system (72% worse than other 2001 cars)
      • 2.4% fail on Electronic stability control (4 times worse than other 2001 cars)
    • 0.78% fail on Parking brake control
      • 0.72% fail on Lever
      • 0.052% fail on Electronic parking brake
    • 0.67% fail on Service brake pedal or hand lever
      • 0.47% fail on Pedal
      • 0.26% fail on Hand lever
    • 0.52% fail on Flexible brake hoses
    • 0.26% fail on Hydraulic systems
      • 0.16% fail on Brake fluid
      • 0.052% fail on Servos
      • 0.052% fail on Reservoirs
    • 0.16% fail on Air and vacuum systems
      • 0.10% fail on Servos
      • 0.052% fail on Leaks
  • 16% fail on Suspension
    • 7.6% fail on Anti-roll bars (48% worse than other 2001 cars)
      • 3.8% fail on Pins and bushes (7 times worse than other 2001 cars)
      • 2.0% fail on Linkage pins and bushes (160% worse than other 2001 cars)
      • 1.9% fail on Linkage (2 times worse than other 2001 cars)
      • 0.41% fail on Attachment bracket and mounting (3 times worse than other 2001 cars)
      • 0.21% fail on Anti-roll bar
      • 0.052% fail on Linkage ball joints
      • 0.052% fail on Ball joint dust cover
      • 0.052% fail on Linkage attachment bracket and mounting
    • 5.9% fail on Springs (90% worse than other 2001 cars)
      • 5.9% fail on Coil springs (97% worse than other 2001 cars)
        • 5.9% fail on Coil spring (100% worse than other 2001 cars)
    • 4.3% fail on Suspension arms (27% better than other 2001 cars)
      • 3.4% fail on Ball joint
      • 1.2% fail on Ball joint dust cover
      • 0.16% fail on Pins and bushes (94% better than other 2001 cars)
    • 0.62% fail on Other suspension component
      • 0.52% fail on Ball joint
      • 0.052% fail on Pins and bushes
      • 0.052% fail on Ball joint dust cover
    • 0.52% fail on Shock absorbers (63% better than other 2001 cars)
    • 0.47% fail on Wheel bearings (68% better than other 2001 cars)
    • 0.21% fail on Suspension rods
      • 0.10% fail on Suspension rod (7 times worse than other 2001 cars)
      • 0.052% fail on Pins and bushes
      • 0.052% fail on Ball joint dust cover
    • 0.16% fail on Component mounting prescribed areas (96% better than other 2001 cars)
    • 0.052% fail on Macpherson strut
      • 0.052% fail on Ball joint
    • 0.052% fail on Sub-frames
      • 0.052% fail on Sub-frame
  • 12% fail on Steering (170% worse than other 2001 cars)
    • 9.4% fail on Steering linkage components (2 times worse than other 2001 cars)
      • 8.5% fail on Track rod end (2 times worse than other 2001 cars)
      • 0.72% fail on Ball joint (2 times worse than other 2001 cars)
      • 0.10% fail on Drag link end
      • 0.10% fail on Steering arm
      • 0.052% fail on Other components
        • 0.052% fail on Steering linkage
    • 1.5% fail on Steering gear (68% worse than other 2001 cars)
      • 1.5% fail on Steering rack (77% worse than other 2001 cars)
    • 0.88% fail on Power steering (120% worse than other 2001 cars)
      • 0.36% fail on Pipes and hoses (2 times worse than other 2001 cars)
      • 0.31% fail on Other components
      • 0.21% fail on Operation
      • 0.052% fail on Rams
    • 0.57% fail on Steering play (3 times worse than other 2001 cars)
      • 0.52% fail on Steering rack (3 times worse than other 2001 cars)
      • 0.052% fail on Steering box
    • 0.21% fail on Electronic power steering (4 times worse than other 2001 cars)
  • 7.9% fail on Visibility
    • 4.1% fail on Washers
    • 3.4% fail on Wipers (27% better than other 2001 cars)
    • 0.88% fail on View to rear (130% worse than other 2001 cars)
      • 0.88% fail on Mirrors (140% worse than other 2001 cars)
    • 0.26% fail on Condition of glass
      • 0.16% fail on Windscreen
      • 0.10% fail on Window (14 times worse than other 2001 cars)
    • 0.10% fail on Driver's view
  • 7.2% fail on Noise, emissions and leaks
    • 5.4% fail on Exhaust emissions (32% better than other 2001 cars)
      • 4.3% fail on Compression ignition (3 times worse than other 2001 cars)
        • 3.5% fail on Pre 01/07/2008 Turbo (6 times worse than other 2001 cars)
        • 0.41% fail on Emissions not tested (180% worse than other 2001 cars)
        • 0.21% fail on Malfunction indicator lamp
        • 0.10% fail on Emission control equipment
          • 0.10% fail on Catalytic converter (5 times worse than other 2001 cars)
        • 0.10% fail on On or after 01/07/2008
      • 1.2% fail on Spark ignition (83% better than other 2001 cars)
        • 0.62% fail on Catalyst emissions (83% better than other 2001 cars)
        • 0.31% fail on Emissions not tested (70% better than other 2001 cars)
        • 0.26% fail on Malfunction indicator lamp (92% better than other 2001 cars)
    • 2.1% fail on Fluid leaks (170% worse than other 2001 cars)
      • 1.3% fail on Engine oil leaks (120% worse than other 2001 cars)
      • 0.41% fail on Other leaks (4 times worse than other 2001 cars)
      • 0.21% fail on Hydraulic fluid leaks (3 times worse than other 2001 cars)
      • 0.10% fail on Transmission oil leaks
    • 0.052% fail on Noise suppression
      • 0.052% fail on Sound deadening material
  • 5.4% fail on Body, chassis, structure (49% better than other 2001 cars)
    • 1.4% fail on Transmission (63% better than other 2001 cars)
      • 1.3% fail on Drive shafts (63% better than other 2001 cars)
        • 1.3% fail on Joints (63% better than other 2001 cars)
      • 0.10% fail on Prop shafts
        • 0.052% fail on Prop shaft
        • 0.052% fail on Joints
    • 1.3% fail on Exhaust system (65% better than other 2001 cars)
    • 0.57% fail on Doors
      • 0.36% fail on Other passenger's door
        • 0.36% fail on Door condition
      • 0.16% fail on Driver's door
        • 0.16% fail on Door condition
      • 0.052% fail on Front passenger's door
        • 0.052% fail on Door condition
    • 0.47% fail on Fuel system
      • 0.31% fail on System (2 times worse than other 2001 cars)
      • 0.10% fail on Fuel cap/sealing device
      • 0.052% fail on Tank
    • 0.47% fail on Bumpers
    • 0.41% fail on Seats
      • 0.36% fail on Driver's seat
      • 0.052% fail on Passenger's seat
    • 0.31% fail on Integral vehicle structure (70% better than other 2001 cars)
      • 0.31% fail on Integral vehicle structure condition (70% better than other 2001 cars)
    • 0.31% fail on Chassis (64% better than other 2001 cars)
      • 0.31% fail on Chassis condition (64% better than other 2001 cars)
    • 0.31% fail on Towbar
      • 0.31% fail on Vehicle structure
    • 0.21% fail on Body
      • 0.10% fail on Panel
      • 0.052% fail on Mounting fixings
      • 0.052% fail on Other body component
  • 5.2% fail on Tyres (24% better than other 2001 cars)
    • 3.5% fail on Tread depth
    • 2.2% fail on Condition
  • 2.4% fail on Seat belts and supplementary restraint systems (40% better than other 2001 cars)
    • 2.0% fail on SRS malfunction indicator lamp
    • 0.41% fail on Seat belts (84% better than other 2001 cars)
      • 0.21% fail on Prescribed areas (89% better than other 2001 cars)
      • 0.21% fail on Condition
  • 1.2% fail on Road Wheels (2 times worse than other 2001 cars)
    • 1.2% fail on Attachment (3 times worse than other 2001 cars)
  • 0.62% fail on Identification of the vehicle
    • 0.62% fail on Registration plates
  • 0.052% fail on Seat belt installation check
    • 0.052% fail on Anchorages

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