Mercedes-Benz B-Class MOT Results

Registered in 2006
57.2% pass rate
from 1,297 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 2006 cars and highlighted areas where the Mercedes-Benz B-Class is unusually good or bad.

  • 19% fail on Lamps, reflectors and electrical equipment
    • 5.8% fail on Stop lamp
    • 5.5% fail on Direction indicators (110% worse than other 2006 cars)
      • 5.5% fail on Flashing type (110% worse than other 2006 cars)
        • 3.5% fail on Individual direction indicators (91% worse than other 2006 cars)
        • 1.9% fail on Side repeaters (190% worse than other 2006 cars)
        • 0.39% fail on All direction indicators
    • 5.4% fail on Headlamps
      • 5.2% fail on Headlamp
      • 0.23% fail on Headlamp levelling device
    • 4.2% fail on Headlamp aim
      • 3.9% fail on Headlamp aim
      • 0.31% fail on Headlamp aim not tested
    • 1.4% fail on Registration plate lamp(s) (48% better than other 2006 cars)
    • 1.3% fail on Position lamps (58% better than other 2006 cars)
      • 1.3% fail on Position lamp (57% better than other 2006 cars)
    • 1.0% fail on Electrical equipment
      • 0.77% fail on Horn
      • 0.15% fail on Electrical wiring
      • 0.077% fail on Trailer electrical socket
    • 0.39% fail on Front and rear fog lamps
      • 0.39% fail on Rear fog lamp
        • 0.39% fail on Rear fog lamp
  • 14% fail on Brakes
    • 7.4% fail on Brake performance
      • 4.7% fail on Parking brake efficiency (sp)
        • 4.7% fail on Rbt (sp) (40% worse than other 2006 cars)
      • 2.3% fail on Service brake performance
        • 2.2% fail on Rbt
          • 1.6% fail on Service brake performance
          • 0.85% fail on Service brake imbalance
        • 0.077% fail on Plate brake tester
          • 0.077% fail on Service brake performance
      • 1.5% fail on Parking brake performance
        • 1.5% fail on Rbt
          • 1.2% fail on Parking brake performance
          • 0.23% fail on Parking (secondary brake performance)
        • 0.077% fail on Decelerometer
          • 0.077% fail on Parking (secondary brake performance)
      • 1.4% fail on Service Brake Efficiency (sp) (94% worse than other 2006 cars)
        • 1.4% fail on Rbt (sp) (99% worse than other 2006 cars)
          • 0.77% fail on Service brake performance (2 times worse than other 2006 cars)
          • 0.77% fail on Service brake imbalance
      • 0.31% fail on Brake performance not tested
    • 3.9% fail on Rigid brake pipes (58% worse than other 2006 cars)
    • 3.3% fail on Mechanical brake components
      • 2.3% fail on Brake linings and pads
        • 2.3% fail on Brake pads
      • 1.1% fail on Brake discs and drums
        • 1.1% fail on Brake discs
      • 0.23% fail on Brake cables, rods, levers and linkages
        • 0.15% fail on Cable
        • 0.077% fail on Lever
    • 1.5% fail on Parking brake control (200% worse than other 2006 cars)
      • 1.5% fail on Lever (2 times worse than other 2006 cars)
    • 0.93% fail on ABS / EBS / ESC
      • 0.69% fail on Anti-lock braking system
      • 0.23% fail on Electronic stability control
    • 0.77% fail on Service brake pedal or hand lever
      • 0.69% fail on Hand lever (170% worse than other 2006 cars)
      • 0.077% fail on Pedal
    • 0.23% fail on Hydraulic systems
      • 0.23% fail on Brake fluid
    • 0.077% fail on Flexible brake hoses
  • 12% fail on Suspension (25% better than other 2006 cars)
    • 6.3% fail on Springs (46% worse than other 2006 cars)
      • 6.3% fail on Coil springs (47% worse than other 2006 cars)
        • 6.3% fail on Coil spring (48% worse than other 2006 cars)
        • 0.077% fail on Mounting
    • 4.4% fail on Suspension arms
      • 3.9% fail on Ball joint (78% worse than other 2006 cars)
      • 0.31% fail on Pins and bushes (88% better than other 2006 cars)
      • 0.15% fail on Ball joint dust cover
      • 0.077% fail on Suspension arm
    • 2.1% fail on Shock absorbers
    • 0.62% fail on Wheel bearings
    • 0.54% fail on Anti-roll bars (90% better than other 2006 cars)
      • 0.23% fail on Linkage pins and bushes
      • 0.15% fail on Linkage
      • 0.15% fail on Linkage ball joints (90% better than other 2006 cars)
    • 0.31% fail on Other suspension component
      • 0.31% fail on Ball joint
    • 0.15% fail on Macpherson strut
      • 0.077% fail on Macpherson strut
      • 0.077% fail on Ball joint
  • 11% fail on Body, chassis, structure (53% worse than other 2006 cars)
    • 8.6% fail on Transmission (160% worse than other 2006 cars)
      • 8.1% fail on Drive shafts (160% worse than other 2006 cars)
        • 8.0% fail on Joints (160% worse than other 2006 cars)
        • 0.077% fail on Flexible couplings
      • 0.46% fail on Prop shafts
        • 0.46% fail on Joints (2 times worse than other 2006 cars)
    • 1.1% fail on Exhaust system (60% better than other 2006 cars)
    • 0.85% fail on Fuel system
      • 0.39% fail on Fuel cap/sealing device
      • 0.31% fail on Pipe (4 times worse than other 2006 cars)
      • 0.15% fail on Hose (8 times worse than other 2006 cars)
      • 0.077% fail on Tank
    • 0.46% fail on Bumpers
    • 0.23% fail on Doors
      • 0.15% fail on Other passenger's door
        • 0.15% fail on Door condition
      • 0.077% fail on Driver's door
        • 0.077% fail on Door condition
    • 0.15% fail on Load security (25 times worse than other 2006 cars)
      • 0.15% fail on Tailgate (39 times worse than other 2006 cars)
        • 0.15% fail on Tailgate condition (52 times worse than other 2006 cars)
    • 0.15% fail on Boot lid
      • 0.15% fail on Boot lid condition
    • 0.15% fail on Undertray
    • 0.077% fail on Body
      • 0.077% fail on Other body component
    • 0.077% fail on Seats
      • 0.077% fail on Driver's seat
  • 7.9% fail on Visibility
    • 5.9% fail on Washers (83% worse than other 2006 cars)
    • 1.8% fail on Wipers (46% better than other 2006 cars)
    • 0.23% fail on Condition of glass
      • 0.23% fail on Windscreen
    • 0.23% fail on View to rear
      • 0.23% fail on Mirrors
    • 0.15% fail on Driver's view
    • 0.15% fail on Bonnet
  • 7.7% fail on Noise, emissions and leaks
    • 7.7% fail on Exhaust emissions (33% worse than other 2006 cars)
      • 4.2% fail on Spark ignition
        • 3.4% fail on Malfunction indicator lamp
        • 0.85% fail on Catalyst emissions (54% better than other 2006 cars)
        • 0.15% fail on Emissions not tested
      • 3.5% fail on Compression ignition (110% worse than other 2006 cars)
        • 2.0% fail on Pre 01/07/2008 Turbo (110% worse than other 2006 cars)
        • 1.4% fail on Malfunction indicator lamp (2 times worse than other 2006 cars)
        • 0.15% fail on Emissions not tested
        • 0.077% fail on On or after 01/07/2008
  • 6.0% fail on Tyres
    • 3.1% fail on Tread depth
    • 2.9% fail on Condition
    • 0.23% fail on Size/type
  • 2.0% fail on Seat belts and supplementary restraint systems
    • 1.2% fail on SRS malfunction indicator lamp
    • 1.0% fail on Seat belts
      • 1.0% fail on Condition
  • 1.4% fail on Road Wheels (160% worse than other 2006 cars)
    • 1.2% fail on Attachment (2 times worse than other 2006 cars)
    • 0.15% fail on Condition
  • 1.2% fail on Steering (63% better than other 2006 cars)
    • 0.93% fail on Steering linkage components (63% better than other 2006 cars)
      • 0.85% fail on Track rod end (62% better than other 2006 cars)
      • 0.077% fail on Ball joint
    • 0.23% fail on Steering gear
      • 0.23% fail on Steering rack
    • 0.077% fail on Steering shaft
    • 0.077% fail on Steering play
      • 0.077% fail on Steering rack
  • 0.69% fail on Identification of the vehicle
    • 0.69% fail on Registration plates
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