Mercedes-Benz B-Class MOT Results

Registered in 2005
58.6% pass rate
from 785 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 2005 cars and highlighted areas where the Mercedes-Benz B-Class is unusually good or bad.

  • 15% fail on Lamps, reflectors and electrical equipment
    • 4.6% fail on Direction indicators (74% worse than other 2005 cars)
      • 4.6% fail on Flashing type (74% worse than other 2005 cars)
        • 3.4% fail on Individual direction indicators (94% worse than other 2005 cars)
        • 1.0% fail on Side repeaters
        • 0.13% fail on All direction indicators
    • 4.5% fail on Headlamps
      • 4.5% fail on Headlamp
    • 3.8% fail on Headlamp aim
      • 3.2% fail on Headlamp aim
      • 0.64% fail on Headlamp aim not tested
    • 3.1% fail on Stop lamp
    • 1.3% fail on Registration plate lamp(s)
    • 0.51% fail on Front and rear fog lamps
      • 0.51% fail on Rear fog lamp
        • 0.51% fail on Rear fog lamp
    • 0.13% fail on Position lamps
      • 0.13% fail on Position lamp
    • 0.13% fail on Mandatory tell-tales
      • 0.13% fail on Main beam tell-tale
    • 0.13% fail on Electrical equipment
      • 0.13% fail on Horn
  • 14% fail on Brakes
    • 7.9% fail on Brake performance
      • 5.0% fail on Parking brake efficiency (sp)
        • 4.8% fail on Rbt (sp)
        • 0.13% fail on Plate brake tester (sp)
      • 2.3% fail on Service Brake Efficiency (sp) (140% worse than other 2005 cars)
        • 2.3% fail on Rbt (sp) (150% worse than other 2005 cars)
          • 1.5% fail on Service brake performance (4 times worse than other 2005 cars)
          • 0.76% fail on Service brake imbalance
      • 2.0% fail on Service brake performance
        • 2.0% fail on Rbt
          • 1.8% fail on Service brake performance
          • 0.38% fail on Service brake imbalance
      • 1.0% fail on Parking brake performance
        • 0.76% fail on Rbt
          • 0.51% fail on Parking brake performance
          • 0.25% fail on Parking (secondary brake performance)
        • 0.13% fail on Decelerometer
          • 0.13% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
        • 0.13% fail on Plate brake tester
          • 0.13% fail on Parking brake performance
      • 0.13% fail on Brake performance not tested
    • 2.9% fail on Rigid brake pipes
    • 2.8% fail on Mechanical brake components
      • 2.0% fail on Brake linings and pads
        • 1.9% fail on Brake pads
        • 0.13% fail on Brake linings
      • 0.89% fail on Brake discs and drums
        • 0.89% fail on Brake discs
      • 0.13% fail on Brake cables, rods, levers and linkages
        • 0.13% fail on Cable
    • 1.5% fail on Parking brake control (2 times worse than other 2005 cars)
      • 1.5% fail on Lever (2 times worse than other 2005 cars)
    • 1.3% fail on ABS / EBS / ESC
      • 0.64% fail on Anti-lock braking system
      • 0.64% fail on Electronic stability control
    • 0.89% fail on Service brake pedal or hand lever
      • 0.76% fail on Hand lever
      • 0.13% fail on Pedal
    • 0.51% fail on Flexible brake hoses
    • 0.13% fail on Load sensing valves
  • 13% fail on Body, chassis, structure (56% worse than other 2005 cars)
    • 11% fail on Transmission (200% worse than other 2005 cars)
      • 10% fail on Drive shafts (2 times worse than other 2005 cars)
        • 10% fail on Joints (2 times worse than other 2005 cars)
      • 0.38% fail on Prop shafts
        • 0.38% fail on Joints
      • 0.13% fail on Belts
    • 0.76% fail on Exhaust system (73% better than other 2005 cars)
    • 0.76% fail on Fuel system
      • 0.38% fail on Fuel cap/sealing device
      • 0.25% fail on Pipe
      • 0.13% fail on Tank
      • 0.13% fail on Hose
    • 0.64% fail on Doors
      • 0.25% fail on Driver's door
        • 0.25% fail on Door condition
      • 0.25% fail on Other passenger's door
        • 0.25% fail on Door condition
      • 0.13% fail on Front passenger's door
        • 0.13% fail on Door condition
    • 0.38% fail on Bumpers
    • 0.13% fail on Engine mounting
      • 0.13% fail on Engine mounting condition
    • 0.13% fail on Body
      • 0.13% fail on Other body component
    • 0.13% fail on Boot lid
      • 0.13% fail on Boot lid condition
  • 12% fail on Suspension (28% better than other 2005 cars)
    • 7.9% fail on Springs (69% worse than other 2005 cars)
      • 7.8% fail on Coil springs (68% worse than other 2005 cars)
        • 7.8% fail on Coil spring (68% worse than other 2005 cars)
      • 0.13% fail on Spring mounting prescribed areas
    • 3.6% fail on Suspension arms (40% better than other 2005 cars)
      • 2.9% fail on Ball joint
      • 0.51% fail on Ball joint dust cover
      • 0.25% fail on Pins and bushes (90% better than other 2005 cars)
      • 0.13% fail on Suspension arm
    • 1.4% fail on Anti-roll bars (74% better than other 2005 cars)
      • 0.51% fail on Linkage ball joint dust cover (69% better than other 2005 cars)
      • 0.38% fail on Linkage pins and bushes
      • 0.25% fail on Linkage ball joints (84% better than other 2005 cars)
      • 0.13% fail on Ball joint
      • 0.13% fail on Ball joint dust cover
    • 1.0% fail on Shock absorbers
    • 0.25% fail on Wheel bearings (82% better than other 2005 cars)
    • 0.25% fail on Macpherson strut
      • 0.25% fail on Macpherson strut
  • 8.7% fail on Visibility
    • 6.8% fail on Washers (85% worse than other 2005 cars)
    • 2.2% fail on Wipers
    • 0.25% fail on Condition of glass
      • 0.25% fail on Windscreen
    • 0.13% fail on Bonnet
    • 0.13% fail on View to rear
      • 0.13% fail on Indirect vision devices
  • 6.8% fail on Noise, emissions and leaks
    • 6.6% fail on Exhaust emissions
      • 3.7% fail on Compression ignition (160% worse than other 2005 cars)
        • 2.5% fail on Pre 01/07/2008 Turbo (2 times worse than other 2005 cars)
        • 0.76% fail on Malfunction indicator lamp
        • 0.25% fail on Pre 01/07/2008 Non turbo
        • 0.13% fail on Emissions not tested
      • 2.9% fail on Spark ignition (42% better than other 2005 cars)
        • 2.3% fail on Malfunction indicator lamp
        • 0.51% fail on Catalyst emissions (77% better than other 2005 cars)
        • 0.38% fail on Emissions not tested
    • 0.13% fail on Fluid leaks
      • 0.13% fail on Other leaks
  • 5.2% fail on Tyres
    • 2.8% fail on Condition
    • 2.3% fail on Tread depth
    • 0.38% fail on Size/type
  • 1.7% fail on Seat belts and supplementary restraint systems
    • 0.89% fail on SRS malfunction indicator lamp
    • 0.76% fail on Seat belts
      • 0.76% fail on Condition
  • 0.89% fail on Steering (77% better than other 2005 cars)
    • 0.64% fail on Steering linkage components (78% better than other 2005 cars)
      • 0.64% fail on Track rod end (75% better than other 2005 cars)
    • 0.25% fail on Steering gear
      • 0.25% fail on Steering rack
  • 0.89% fail on Road Wheels
    • 0.89% fail on Attachment
  • 0.76% fail on Identification of the vehicle
    • 0.76% fail on Registration plates
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