Mercedes-Benz B-Class MOT Results

Registered in 2011
70.0% pass rate
from 503 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 2011 cars and highlighted areas where the Mercedes-Benz B-Class is unusually good or bad.

  • 13% fail on Lamps, reflectors and electrical equipment
    • 8.2% fail on Direction indicators (4 times worse than other 2011 cars)
      • 8.2% fail on Flashing type (4 times worse than other 2011 cars)
        • 5.0% fail on Side repeaters (7 times worse than other 2011 cars)
        • 3.4% fail on Individual direction indicators (3 times worse than other 2011 cars)
        • 0.20% fail on All direction indicators
    • 3.6% fail on Headlamps
      • 3.6% fail on Headlamp
    • 2.4% fail on Headlamp aim
      • 2.0% fail on Headlamp aim
      • 0.40% fail on Headlamp aim not tested
    • 0.60% fail on Stop lamp (74% better than other 2011 cars)
    • 0.40% fail on Position lamps
      • 0.40% fail on Position lamp
    • 0.40% fail on Registration plate lamp(s)
    • 0.20% fail on Front and rear fog lamps
      • 0.20% fail on Rear fog lamp
        • 0.20% fail on Rear fog lamp
  • 6.8% fail on Brakes
    • 3.0% fail on Brake performance
      • 1.6% fail on Parking brake efficiency (sp)
        • 1.6% fail on Rbt (sp)
      • 1.4% fail on Service Brake Efficiency (sp) (3 times worse than other 2011 cars)
        • 1.4% fail on Rbt (sp) (3 times worse than other 2011 cars)
          • 1.2% fail on Service brake performance (6 times worse than other 2011 cars)
          • 0.20% fail on Service brake imbalance
      • 0.80% fail on Parking brake performance
        • 0.80% fail on Rbt
          • 0.80% fail on Parking brake performance
      • 0.60% fail on Service brake performance
        • 0.60% fail on Rbt
          • 0.60% fail on Service brake performance
          • 0.20% fail on Service brake imbalance
    • 2.8% fail on Mechanical brake components
      • 2.2% fail on Brake linings and pads
        • 2.2% fail on Brake pads
      • 0.80% fail on Brake discs and drums
        • 0.80% fail on Brake discs
    • 1.6% fail on Rigid brake pipes (3 times worse than other 2011 cars)
    • 0.40% fail on Parking brake control
      • 0.40% fail on Lever
    • 0.20% fail on Service brake pedal or hand lever
      • 0.20% fail on Hand lever
  • 6.2% fail on Suspension
    • 3.0% fail on Springs
      • 3.0% fail on Coil springs
        • 3.0% fail on Coil spring
    • 2.2% fail on Shock absorbers
    • 0.80% fail on Suspension arms (70% better than other 2011 cars)
      • 0.60% fail on Ball joint
      • 0.20% fail on Ball joint dust cover
    • 0.40% fail on Anti-roll bars
      • 0.20% fail on Linkage ball joints
      • 0.20% fail on Linkage ball joint dust cover
    • 0.20% fail on Wheel bearings
  • 5.8% fail on Tyres
    • 4.0% fail on Condition
    • 1.8% fail on Tread depth
    • 0.20% fail on Size/type
  • 3.8% fail on Visibility
    • 2.0% fail on Washers
    • 0.60% fail on Condition of glass (6 times worse than other 2011 cars)
      • 0.60% fail on Windscreen (6 times worse than other 2011 cars)
    • 0.60% fail on View to rear (4 times worse than other 2011 cars)
      • 0.60% fail on Mirrors (4 times worse than other 2011 cars)
    • 0.60% fail on Wipers (74% better than other 2011 cars)
    • 0.20% fail on Bonnet
  • 2.0% fail on Body, chassis, structure
    • 1.6% fail on Transmission
      • 1.6% fail on Drive shafts
        • 1.6% fail on Joints
    • 0.20% fail on Exhaust system
    • 0.20% fail on Engine mounting
      • 0.20% fail on Engine mounting condition
    • 0.20% fail on Body
      • 0.20% fail on Other body component
  • 2.0% fail on Noise, emissions and leaks
    • 2.0% fail on Exhaust emissions
      • 1.4% fail on Compression ignition
        • 0.80% fail on Malfunction indicator lamp
        • 0.40% fail on On or after 01/07/2008
        • 0.20% fail on Emission control equipment
          • 0.20% fail on Particulate filter
        • 0.20% fail on Pre 01/07/2008 Non turbo
        • 0.20% fail on Emissions not tested
      • 0.60% fail on Spark ignition
        • 0.60% fail on Malfunction indicator lamp
  • 0.80% fail on Road Wheels
    • 0.40% fail on Condition
    • 0.40% fail on Attachment
  • 0.60% fail on Seat belts and supplementary restraint systems
    • 0.40% fail on SRS malfunction indicator lamp
    • 0.20% fail on Seat belts
      • 0.20% fail on Condition
  • 0.20% fail on Identification of the vehicle
    • 0.20% fail on Registration plates
  • 0.20% fail on Steering
    • 0.20% fail on Steering linkage components
      • 0.20% fail on Ball joint
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