Mercedes-Benz B-Class MOT Results

Registered in 2006
56.2% pass rate
from 3,325 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 2006 cars and highlighted areas where the Mercedes-Benz B-Class is unusually good or bad.

  • 15% fail on Lamps, reflectors and electrical equipment
    • 4.3% fail on Direction indicators (64% worse than other 2006 cars)
      • 4.3% fail on Flashing type (64% worse than other 2006 cars)
        • 2.9% fail on Individual direction indicators (62% worse than other 2006 cars)
        • 1.4% fail on Side repeaters (93% worse than other 2006 cars)
        • 0.18% fail on All direction indicators
    • 4.2% fail on Headlamp aim
      • 3.9% fail on Headlamp aim
      • 0.36% fail on Headlamp aim not tested
    • 4.2% fail on Stop lamp
    • 4.2% fail on Headlamps
      • 3.8% fail on Headlamp
      • 0.36% fail on Headlamp levelling device
      • 0.030% fail on Dipswitch
    • 0.90% fail on Registration plate lamp(s) (59% better than other 2006 cars)
    • 0.63% fail on Front and rear fog lamps
      • 0.63% fail on Rear fog lamp
        • 0.63% fail on Rear fog lamp
    • 0.36% fail on Position lamps
      • 0.36% fail on Position lamp
    • 0.12% fail on Electrical equipment (80% better than other 2006 cars)
      • 0.12% fail on Horn
    • 0.030% fail on Mandatory tell-tales
      • 0.030% fail on Main beam tell-tale
  • 14% fail on Suspension (14% better than other 2006 cars)
    • 8.8% fail on Springs (72% worse than other 2006 cars)
      • 8.7% fail on Coil springs (72% worse than other 2006 cars)
        • 8.7% fail on Coil spring (72% worse than other 2006 cars)
        • 0.090% fail on Mounting
      • 0.090% fail on Spring mounting prescribed areas
    • 4.1% fail on Suspension arms (25% better than other 2006 cars)
      • 3.7% fail on Ball joint (71% worse than other 2006 cars)
      • 0.24% fail on Ball joint dust cover (69% better than other 2006 cars)
      • 0.21% fail on Pins and bushes (92% better than other 2006 cars)
      • 0.030% fail on Suspension arm
    • 0.87% fail on Shock absorbers
    • 0.87% fail on Anti-roll bars (83% better than other 2006 cars)
      • 0.33% fail on Linkage ball joints (78% better than other 2006 cars)
      • 0.24% fail on Linkage ball joint dust cover (86% better than other 2006 cars)
      • 0.090% fail on Linkage
      • 0.060% fail on Anti-roll bar
      • 0.060% fail on Linkage pins and bushes
      • 0.060% fail on Ball joint (87% better than other 2006 cars)
      • 0.060% fail on Ball joint dust cover (92% better than other 2006 cars)
      • 0.030% fail on Attachment bracket and mounting
    • 0.78% fail on Wheel bearings
    • 0.24% fail on Other suspension component
      • 0.21% fail on Ball joint
      • 0.030% fail on Ball joint dust cover
    • 0.18% fail on Component mounting prescribed areas (87% better than other 2006 cars)
    • 0.030% fail on Macpherson strut
      • 0.030% fail on Attachment bracket and mounting
    • 0.030% fail on Suspension rods
      • 0.030% fail on Ball joint
    • 0.030% fail on Sub-frames
      • 0.030% fail on Pins and bushes
  • 14% fail on Brakes (13% worse than other 2006 cars)
    • 8.0% fail on Brake performance (18% worse than other 2006 cars)
      • 5.3% fail on Parking brake efficiency (sp) (41% worse than other 2006 cars)
        • 5.2% fail on Rbt (sp) (46% worse than other 2006 cars)
        • 0.090% fail on Decelerometer (sp)
        • 0.030% fail on Plate brake tester (sp)
      • 2.3% fail on Service brake performance
        • 2.3% fail on Rbt
          • 2.0% fail on Service brake performance
          • 0.30% fail on Service brake imbalance
        • 0.060% fail on Plate brake tester
          • 0.030% fail on Service brake performance
          • 0.030% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
        • 0.030% fail on Decelerometer
          • 0.030% fail on Service brake performance
      • 1.7% fail on Parking brake performance
        • 1.6% fail on Rbt
          • 1.3% fail on Parking brake performance
          • 0.15% fail on Parking (secondary brake performance)
          • 0.15% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles) (2 times worse than other 2006 cars)
        • 0.12% fail on Plate brake tester
          • 0.060% fail on Parking brake performance
          • 0.060% fail on Parking (secondary brake performance)
      • 1.5% fail on Service Brake Efficiency (sp) (84% worse than other 2006 cars)
        • 1.5% fail on Rbt (sp) (89% worse than other 2006 cars)
          • 0.87% fail on Service brake performance (2 times worse than other 2006 cars)
          • 0.69% fail on Service brake imbalance
      • 0.12% fail on Brake performance not tested
    • 3.5% fail on Rigid brake pipes (39% worse than other 2006 cars)
    • 3.0% fail on Mechanical brake components
      • 2.2% fail on Brake linings and pads
        • 2.2% fail on Brake pads
      • 0.96% fail on Brake discs and drums
        • 0.96% fail on Brake discs
      • 0.15% fail on Brake cables, rods, levers and linkages
        • 0.090% fail on Lever
        • 0.060% fail on Cable
    • 1.6% fail on Parking brake control (2 times worse than other 2006 cars)
      • 1.6% fail on Lever (2 times worse than other 2006 cars)
    • 1.1% fail on Service brake pedal or hand lever (160% worse than other 2006 cars)
      • 1.1% fail on Hand lever (3 times worse than other 2006 cars)
      • 0.060% fail on Pedal
    • 1.1% fail on ABS / EBS / ESC
      • 0.69% fail on Anti-lock braking system
      • 0.42% fail on Electronic stability control
    • 0.18% fail on Hydraulic systems
      • 0.15% fail on Brake fluid
      • 0.030% fail on Reservoirs
    • 0.060% fail on Flexible brake hoses
    • 0.060% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.060% fail on Hydraulic brake callipers
  • 12% fail on Body, chassis, structure (55% worse than other 2006 cars)
    • 10% fail on Transmission (200% worse than other 2006 cars)
      • 9.7% fail on Drive shafts (2 times worse than other 2006 cars)
        • 9.7% fail on Joints (2 times worse than other 2006 cars)
      • 0.33% fail on Prop shafts
        • 0.33% fail on Joints (170% worse than other 2006 cars)
    • 0.81% fail on Exhaust system (70% better than other 2006 cars)
    • 0.78% fail on Fuel system (85% worse than other 2006 cars)
      • 0.45% fail on Fuel cap/sealing device
      • 0.27% fail on Pipe (4 times worse than other 2006 cars)
      • 0.030% fail on Tank
      • 0.030% fail on System
    • 0.36% fail on Doors
      • 0.24% fail on Other passenger's door
        • 0.21% fail on Door condition
        • 0.030% fail on Catch
      • 0.12% fail on Driver's door
        • 0.12% fail on Door condition
    • 0.33% fail on Bumpers
    • 0.12% fail on Body
      • 0.090% fail on Other body component
      • 0.030% fail on Panel
    • 0.090% fail on Undertray
    • 0.060% fail on Integral vehicle structure (89% better than other 2006 cars)
      • 0.060% fail on Integral vehicle structure condition (88% better than other 2006 cars)
    • 0.060% fail on Seats
      • 0.030% fail on Driver's seat
      • 0.030% fail on Passenger's seat
    • 0.060% fail on Boot lid
      • 0.030% fail on Boot lid condition
      • 0.030% fail on Other boot lid component
    • 0.030% fail on Chassis
      • 0.030% fail on Chassis condition
    • 0.030% fail on Load security
      • 0.030% fail on Tailgate
        • 0.030% fail on Tailgate condition
  • 9.7% fail on Visibility (39% worse than other 2006 cars)
    • 7.3% fail on Washers (110% worse than other 2006 cars)
    • 2.3% fail on Wipers (32% better than other 2006 cars)
    • 0.27% fail on Bonnet
    • 0.24% fail on Condition of glass
      • 0.24% fail on Windscreen
    • 0.21% fail on View to rear
      • 0.18% fail on Mirrors
      • 0.030% fail on Indirect vision devices
    • 0.030% fail on Driver's view
  • 6.0% fail on Noise, emissions and leaks
    • 5.9% fail on Exhaust emissions
      • 3.1% fail on Spark ignition (32% better than other 2006 cars)
        • 2.4% fail on Malfunction indicator lamp
        • 0.54% fail on Catalyst emissions (74% better than other 2006 cars)
        • 0.27% fail on Emissions not tested (64% better than other 2006 cars)
        • 0.030% fail on Emission control equipment
          • 0.030% fail on Catalytic converter
      • 2.8% fail on Compression ignition (100% worse than other 2006 cars)
        • 1.7% fail on Pre 01/07/2008 Turbo (140% worse than other 2006 cars)
        • 0.90% fail on Malfunction indicator lamp (140% worse than other 2006 cars)
        • 0.18% fail on Emissions not tested
        • 0.060% fail on Pre 01/07/2008 Non turbo
        • 0.030% fail on On or after 01/07/2008
        • 0.030% fail on On or after 01/01/2014
    • 0.030% fail on Noise suppression
      • 0.030% fail on Undertray
    • 0.030% fail on Fluid leaks
      • 0.030% fail on Engine oil leaks
  • 5.1% fail on Tyres (23% better than other 2006 cars)
    • 2.7% fail on Condition
    • 2.5% fail on Tread depth (35% better than other 2006 cars)
    • 0.15% fail on Size/type
  • 2.1% fail on Seat belts and supplementary restraint systems
    • 1.2% fail on SRS malfunction indicator lamp
    • 0.96% fail on Seat belts
      • 0.87% fail on Condition (64% worse than other 2006 cars)
      • 0.030% fail on Attachment
      • 0.030% fail on Requirements
      • 0.030% fail on Pre-tensioners
  • 1.1% fail on Road Wheels (110% worse than other 2006 cars)
    • 1.1% fail on Attachment (180% worse than other 2006 cars)
  • 1.1% fail on Steering (67% better than other 2006 cars)
    • 0.66% fail on Steering linkage components (73% better than other 2006 cars)
      • 0.60% fail on Track rod end (73% better than other 2006 cars)
      • 0.060% fail on Ball joint
    • 0.39% fail on Steering gear
      • 0.39% fail on Steering rack
    • 0.060% fail on Steering play
      • 0.060% fail on Steering rack
  • 0.42% fail on Identification of the vehicle
    • 0.42% fail on Registration plates
  • 0.060% fail on Buses and coaches supplementary tests (14 times worse than other 2006 cars)
    • 0.030% fail on Doors
      • 0.030% fail on Passenger entrance/exit doors
    • 0.030% fail on Passenger grab handles
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