Mercedes-Benz B-Class MOT Results

Registered in 2014
82.5% pass rate
from 1,609 tests in 2020
(26% better than other 2014 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 2014 cars and highlighted areas where the Mercedes-Benz B-Class is unusually good or bad.

  • 5.1% fail on Lamps, reflectors and electrical equipment (13% better than other 2014 cars)
    • 2.5% fail on Registration plate lamp(s) (2 times worse than other 2014 cars)
    • 1.2% fail on Headlamp aim (33% better than other 2014 cars)
      • 1.2% fail on Headlamp aim (28% better than other 2014 cars)
    • 0.62% fail on Stop lamp (53% better than other 2014 cars)
    • 0.56% fail on Headlamps (63% better than other 2014 cars)
      • 0.37% fail on Headlamp (74% better than other 2014 cars)
      • 0.25% fail on Headlamp cleaning device (3 times worse than other 2014 cars)
    • 0.25% fail on Direction indicators (45% better than other 2014 cars)
      • 0.25% fail on Flashing type (45% better than other 2014 cars)
        • 0.19% fail on Side repeaters (41% better than other 2014 cars)
        • 0.062% fail on Individual direction indicators
    • 0.12% fail on Reversing lamps (40% worse than other 2014 cars)
      • 0.12% fail on Reversing lamps (44% worse than other 2014 cars)
    • 0.062% fail on Position lamps
      • 0.062% fail on Position lamp
  • 4.6% fail on Tyres (5.8% better than other 2014 cars)
    • 3.3% fail on Condition (43% worse than other 2014 cars)
    • 1.6% fail on Tread depth (44% better than other 2014 cars)
  • 2.9% fail on Brakes (30% better than other 2014 cars)
    • 2.2% fail on Mechanical brake components (16% better than other 2014 cars)
      • 2.1% fail on Brake linings and pads (5.5% better than other 2014 cars)
        • 2.1% fail on Brake pads (4.9% better than other 2014 cars)
        • 0.062% fail on Brake linings
      • 0.31% fail on Brake discs and drums (57% better than other 2014 cars)
        • 0.31% fail on Brake discs (57% better than other 2014 cars)
    • 0.50% fail on Brake performance (60% better than other 2014 cars)
      • 0.37% fail on Service brake performance (49% better than other 2014 cars)
        • 0.37% fail on Rbt (48% better than other 2014 cars)
          • 0.31% fail on Service brake performance (48% better than other 2014 cars)
          • 0.062% fail on Service brake imbalance
        • 0.062% fail on Plate brake tester
          • 0.062% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.12% fail on Service Brake Efficiency (sp) (7.4% better than other 2014 cars)
        • 0.12% fail on Rbt (sp) (2.5% better than other 2014 cars)
          • 0.062% fail on Service brake performance
          • 0.062% fail on Service brake imbalance
      • 0.062% fail on Brake performance not tested
    • 0.12% fail on ABS / EBS / ESC (16% better than other 2014 cars)
      • 0.12% fail on Electronic stability control (50% worse than other 2014 cars)
    • 0.062% fail on Other components and prescribed areas
      • 0.062% fail on Other components
  • 2.3% fail on Noise, emissions and leaks (100% worse than other 2014 cars)
    • 2.3% fail on Exhaust emissions (110% worse than other 2014 cars)
      • 1.6% fail on Compression ignition (2 times worse than other 2014 cars)
        • 1.4% fail on Malfunction indicator lamp (5 times worse than other 2014 cars)
        • 0.062% fail on On or after 01/07/2008
        • 0.062% fail on On or after 01/01/2014
      • 0.75% fail on Spark ignition (22% worse than other 2014 cars)
        • 0.75% fail on Malfunction indicator lamp (98% worse than other 2014 cars)
  • 1.6% fail on Visibility (62% better than other 2014 cars)
    • 0.99% fail on Washers (28% better than other 2014 cars)
    • 0.50% fail on Wipers (81% better than other 2014 cars)
    • 0.25% fail on Condition of glass (3 times worse than other 2014 cars)
      • 0.25% fail on Windscreen (3 times worse than other 2014 cars)
    • 0.062% fail on Driver's view
  • 1.2% fail on Suspension (67% better than other 2014 cars)
    • 0.62% fail on Springs (60% better than other 2014 cars)
      • 0.62% fail on Coil springs (60% better than other 2014 cars)
        • 0.62% fail on Coil spring (60% better than other 2014 cars)
    • 0.25% fail on Anti-roll bars (26% better than other 2014 cars)
      • 0.12% fail on Linkage ball joint dust cover (44% worse than other 2014 cars)
      • 0.062% fail on Linkage pins and bushes
      • 0.062% fail on Linkage ball joints
    • 0.19% fail on Suspension arms (83% better than other 2014 cars)
      • 0.19% fail on Ball joint (63% better than other 2014 cars)
    • 0.062% fail on Shock absorbers
    • 0.062% fail on Other suspension component
      • 0.062% fail on Ball joint
  • 0.87% fail on Seat belts and supplementary restraint systems (150% worse than other 2014 cars)
    • 0.56% fail on SRS malfunction indicator lamp (2 times worse than other 2014 cars)
    • 0.31% fail on Seat belts (81% worse than other 2014 cars)
      • 0.31% fail on Condition (95% worse than other 2014 cars)
  • 0.44% fail on Road Wheels (95% worse than other 2014 cars)
    • 0.37% fail on Condition (6 times worse than other 2014 cars)
    • 0.062% fail on Attachment
  • 0.19% fail on Identification of the vehicle (13% better than other 2014 cars)
    • 0.19% fail on Registration plates (13% better than other 2014 cars)
  • 0.062% fail on Body, chassis, structure
    • 0.062% fail on Bumpers
Read the Honest John Review

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