Mercedes-Benz B-Class MOT Results

Registered in 2016
87.7% pass rate
from 5,387 tests in 2021
(29% better than other 2016 cars)
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 2016 cars and highlighted areas where the Mercedes-Benz B-Class is unusually good or bad.

  • 4.2% fail on Tyres
    • 3.5% fail on Condition (64% worse than other 2016 cars)
    • 0.82% fail on Tread depth (58% better than other 2016 cars)
    • 0.019% fail on Size/type
  • 3.6% fail on Lamps, reflectors and electrical equipment
    • 2.2% fail on Registration plate lamp(s) (5 times worse than other 2016 cars)
    • 1.2% fail on Headlamp aim
      • 1.1% fail on Headlamp aim
      • 0.019% fail on Headlamp aim not tested
    • 0.19% fail on Direction indicators
      • 0.19% fail on Flashing type
        • 0.15% fail on Side repeaters
        • 0.037% fail on Individual direction indicators
    • 0.11% fail on Headlamps (85% better than other 2016 cars)
      • 0.11% fail on Headlamp (83% better than other 2016 cars)
    • 0.037% fail on Stop lamp (94% better than other 2016 cars)
    • 0.019% fail on Position lamps
      • 0.019% fail on Position lamp
    • 0.019% fail on Rear reflectors
    • 0.019% fail on Electrical equipment
      • 0.019% fail on Horn
  • 1.4% fail on Visibility (65% better than other 2016 cars)
    • 0.65% fail on Wipers (77% better than other 2016 cars)
    • 0.63% fail on Washers (43% better than other 2016 cars)
    • 0.11% fail on Condition of glass
      • 0.11% fail on Windscreen
    • 0.037% fail on View to rear
      • 0.037% fail on Mirrors
    • 0.019% fail on Bonnet
  • 1.2% fail on Brakes (59% better than other 2016 cars)
    • 0.91% fail on Mechanical brake components (52% better than other 2016 cars)
      • 0.84% fail on Brake linings and pads (47% better than other 2016 cars)
        • 0.84% fail on Brake pads (47% better than other 2016 cars)
      • 0.093% fail on Brake discs and drums (81% better than other 2016 cars)
        • 0.093% fail on Brake discs (81% better than other 2016 cars)
    • 0.20% fail on Brake performance (72% better than other 2016 cars)
      • 0.13% fail on Service brake performance (68% better than other 2016 cars)
        • 0.13% fail on Rbt (67% better than other 2016 cars)
          • 0.13% fail on Service brake performance (61% better than other 2016 cars)
      • 0.056% fail on Parking brake efficiency (sp) (76% better than other 2016 cars)
        • 0.056% fail on Rbt (sp) (75% better than other 2016 cars)
      • 0.037% fail on Service Brake Efficiency (sp)
        • 0.037% fail on Rbt (sp)
          • 0.037% fail on Service brake performance
          • 0.037% fail on Service brake imbalance
      • 0.019% fail on Parking brake performance
        • 0.019% fail on Rbt
          • 0.019% fail on Parking brake performance
    • 0.037% fail on ABS / EBS / ESC
      • 0.019% fail on Anti-lock braking system
      • 0.019% fail on Electronic braking system
    • 0.019% fail on Service brake pedal or hand lever
      • 0.019% fail on Pedal
    • 0.019% fail on Rigid brake pipes
    • 0.019% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.019% fail on Hydraulic brake cylinder
    • 0.019% fail on Other components and prescribed areas
      • 0.019% fail on Other components
  • 0.63% fail on Suspension (70% better than other 2016 cars)
    • 0.43% fail on Springs (63% better than other 2016 cars)
      • 0.43% fail on Coil springs (63% better than other 2016 cars)
        • 0.43% fail on Coil spring (63% better than other 2016 cars)
    • 0.13% fail on Suspension arms (74% better than other 2016 cars)
      • 0.11% fail on Ball joint
      • 0.019% fail on Attachment bracket and mounting
    • 0.037% fail on Wheel bearings
    • 0.037% fail on Anti-roll bars (82% better than other 2016 cars)
      • 0.019% fail on Ball joint dust cover
      • 0.019% fail on Linkage ball joint dust cover
    • 0.019% fail on Other suspension component
      • 0.019% fail on Other suspension component
  • 0.52% fail on Noise, emissions and leaks (38% better than other 2016 cars)
    • 0.52% fail on Exhaust emissions
      • 0.33% fail on Compression ignition
        • 0.30% fail on Malfunction indicator lamp
        • 0.019% fail on On or after 01/07/2008
        • 0.019% fail on On or after 01/01/2014
      • 0.19% fail on Spark ignition (61% better than other 2016 cars)
        • 0.17% fail on Malfunction indicator lamp
        • 0.019% fail on Emissions not tested
  • 0.26% fail on Seat belts and supplementary restraint systems
    • 0.26% fail on SRS malfunction indicator lamp (120% worse than other 2016 cars)
  • 0.19% fail on Road Wheels
    • 0.13% fail on Attachment
    • 0.056% fail on Condition
  • 0.17% fail on Identification of the vehicle
    • 0.17% fail on Registration plates
  • 0.13% fail on Body, chassis, structure (76% better than other 2016 cars)
    • 0.056% fail on Body
      • 0.056% fail on Other body component
    • 0.037% fail on Bumpers
    • 0.019% fail on Fuel system
      • 0.019% fail on Pipe
    • 0.019% fail on Undertray
  • 0.019% fail on Steering
    • 0.019% fail on Steering wheel
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