Mercedes-Benz C-Class MOT Results

Registered in 2012
78.1% pass rate
from 4,094 tests in 2020
(19% better than other 2012 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 2012 cars and highlighted areas where the Mercedes-Benz C-Class is unusually good or bad.

  • 7.1% fail on Tyres (26% worse than other 2012 cars)
    • 3.9% fail on Tread depth
    • 3.8% fail on Condition (44% worse than other 2012 cars)
    • 0.20% fail on Size/type
    • 0.049% fail on Tyre pressure monitoring system
  • 6.5% fail on Brakes (24% worse than other 2012 cars)
    • 2.6% fail on Brake performance (39% worse than other 2012 cars)
      • 1.7% fail on Parking brake efficiency (sp) (160% worse than other 2012 cars)
        • 1.7% fail on Rbt (sp) (170% worse than other 2012 cars)
        • 0.049% fail on Plate brake tester (sp) (19 times worse than other 2012 cars)
      • 0.73% fail on Service brake performance
        • 0.73% fail on Rbt
          • 0.64% fail on Service brake performance
          • 0.12% fail on Service brake imbalance
      • 0.64% fail on Parking brake performance (120% worse than other 2012 cars)
        • 0.64% fail on Rbt (130% worse than other 2012 cars)
          • 0.59% fail on Parking brake performance (140% worse than other 2012 cars)
          • 0.024% fail on Parking (secondary brake performance)
          • 0.024% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.073% fail on Service Brake Efficiency (sp) (73% better than other 2012 cars)
        • 0.049% fail on Rbt (sp) (81% better than other 2012 cars)
          • 0.049% fail on Service brake imbalance
        • 0.024% fail on Plate brake tester (sp)
          • 0.024% fail on Service brake imbalance
    • 2.1% fail on Mechanical brake components (29% better than other 2012 cars)
      • 1.6% fail on Brake linings and pads (36% better than other 2012 cars)
        • 1.6% fail on Brake pads (36% better than other 2012 cars)
      • 0.68% fail on Brake discs and drums
        • 0.68% fail on Brake discs
      • 0.049% fail on Brake cables, rods, levers and linkages
        • 0.024% fail on Cable
        • 0.024% fail on Lever
    • 1.6% fail on Rigid brake pipes (5 times worse than other 2012 cars)
    • 0.61% fail on ABS / EBS / ESC (190% worse than other 2012 cars)
      • 0.56% fail on Anti-lock braking system (3 times worse than other 2012 cars)
      • 0.34% fail on Electronic stability control (190% worse than other 2012 cars)
    • 0.27% fail on Parking brake control
      • 0.22% fail on Lever
      • 0.049% fail on Electronic parking brake
    • 0.049% fail on Service brake pedal or hand lever
      • 0.024% fail on Pedal
      • 0.024% fail on Hand lever
    • 0.049% fail on Hydraulic systems
      • 0.024% fail on Servos
      • 0.024% fail on Brake fluid
  • 4.7% fail on Lamps, reflectors and electrical equipment (49% better than other 2012 cars)
    • 2.2% fail on Headlamp aim
      • 2.2% fail on Headlamp aim
      • 0.024% fail on Headlamp aim not tested
    • 1.4% fail on Headlamps (32% better than other 2012 cars)
      • 1.1% fail on Headlamp (43% better than other 2012 cars)
      • 0.29% fail on Headlamp cleaning device (3 times worse than other 2012 cars)
      • 0.073% fail on Headlamp levelling device
    • 0.54% fail on Stop lamp (70% better than other 2012 cars)
    • 0.54% fail on Direction indicators (59% better than other 2012 cars)
      • 0.54% fail on Flashing type (59% better than other 2012 cars)
        • 0.46% fail on Side repeaters
        • 0.049% fail on Individual direction indicators (93% better than other 2012 cars)
        • 0.024% fail on All direction indicators
    • 0.15% fail on Front and rear fog lamps
      • 0.15% fail on Rear fog lamp
        • 0.15% fail on Rear fog lamp
    • 0.098% fail on Position lamps (91% better than other 2012 cars)
      • 0.098% fail on Position lamp (91% better than other 2012 cars)
    • 0.049% fail on Electrical equipment
      • 0.049% fail on Electrical wiring
  • 3.6% fail on Suspension (45% better than other 2012 cars)
    • 2.3% fail on Suspension arms
      • 1.7% fail on Ball joint (76% worse than other 2012 cars)
      • 0.59% fail on Ball joint dust cover (150% worse than other 2012 cars)
      • 0.32% fail on Pins and bushes (63% better than other 2012 cars)
      • 0.024% fail on Suspension arm
    • 0.68% fail on Anti-roll bars
      • 0.37% fail on Linkage ball joint dust cover
      • 0.17% fail on Ball joint dust cover
      • 0.073% fail on Linkage ball joints (82% better than other 2012 cars)
      • 0.049% fail on Linkage
      • 0.024% fail on Ball joint
    • 0.37% fail on Springs (87% better than other 2012 cars)
      • 0.37% fail on Coil springs (87% better than other 2012 cars)
        • 0.37% fail on Coil spring (87% better than other 2012 cars)
    • 0.15% fail on Wheel bearings
    • 0.12% fail on Shock absorbers (83% better than other 2012 cars)
    • 0.098% fail on Other suspension component
      • 0.049% fail on Ball joint
      • 0.049% fail on Ball joint dust cover
  • 2.5% fail on Noise, emissions and leaks (78% worse than other 2012 cars)
    • 2.5% fail on Exhaust emissions (85% worse than other 2012 cars)
      • 1.2% fail on Spark ignition (56% worse than other 2012 cars)
        • 1.2% fail on Malfunction indicator lamp (150% worse than other 2012 cars)
        • 0.024% fail on Catalyst emissions
      • 1.2% fail on Compression ignition (130% worse than other 2012 cars)
        • 0.93% fail on Malfunction indicator lamp (2 times worse than other 2012 cars)
        • 0.29% fail on On or after 01/07/2008
    • 0.073% fail on Fluid leaks
      • 0.049% fail on Engine oil leaks
      • 0.024% fail on Other leaks
  • 1.6% fail on Visibility (61% better than other 2012 cars)
    • 0.73% fail on Washers (59% better than other 2012 cars)
    • 0.64% fail on Wipers (72% better than other 2012 cars)
    • 0.098% fail on Condition of glass
      • 0.098% fail on Windscreen
    • 0.073% fail on Driver's view
    • 0.073% fail on View to rear
      • 0.073% fail on Mirrors
    • 0.024% fail on Bonnet
  • 0.78% fail on Seat belts and supplementary restraint systems
    • 0.39% fail on Seat belts
      • 0.39% fail on Condition
    • 0.34% fail on SRS malfunction indicator lamp
    • 0.049% fail on Airbags
      • 0.049% fail on Passengers airbag (21 times worse than other 2012 cars)
  • 0.56% fail on Road Wheels (74% worse than other 2012 cars)
    • 0.37% fail on Condition (2 times worse than other 2012 cars)
    • 0.20% fail on Attachment
  • 0.51% fail on Identification of the vehicle
    • 0.51% fail on Registration plates
  • 0.24% fail on Body, chassis, structure (86% better than other 2012 cars)
    • 0.15% fail on Exhaust system (77% better than other 2012 cars)
    • 0.024% fail on Body
      • 0.024% fail on Other body component
    • 0.024% fail on Doors
      • 0.024% fail on Front passenger's door
        • 0.024% fail on Door condition
    • 0.024% fail on Seats
      • 0.024% fail on Driver's seat
    • 0.024% fail on Undertray
  • 0.098% fail on Steering (90% better than other 2012 cars)
    • 0.049% fail on Power steering
      • 0.024% fail on Pipes and hoses
      • 0.024% fail on Other components
    • 0.024% fail on Steering gear
      • 0.024% fail on Steering rack
    • 0.024% fail on Steering linkage components
      • 0.024% fail on Track rod end

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