Mercedes-Benz C-Class MOT Results

Registered in 2009
68.1% pass rate
from 6,107 tests in 2020
(14% better than other 2009 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 2009 cars and highlighted areas where the Mercedes-Benz C-Class is unusually good or bad.

  • 11% fail on Suspension (15% better than other 2009 cars)
    • 5.8% fail on Suspension arms (46% worse than other 2009 cars)
      • 4.5% fail on Ball joint (130% worse than other 2009 cars)
      • 0.72% fail on Ball joint dust cover (80% worse than other 2009 cars)
      • 0.67% fail on Pins and bushes (61% better than other 2009 cars)
      • 0.082% fail on Attachment bracket and mounting (4 times worse than other 2009 cars)
    • 3.1% fail on Springs (28% better than other 2009 cars)
      • 3.1% fail on Coil springs (27% better than other 2009 cars)
        • 3.1% fail on Coil spring (27% better than other 2009 cars)
    • 2.5% fail on Anti-roll bars (30% better than other 2009 cars)
      • 1.4% fail on Linkage ball joint dust cover
      • 0.64% fail on Ball joint dust cover
      • 0.21% fail on Linkage ball joints (82% better than other 2009 cars)
      • 0.098% fail on Ball joint (72% better than other 2009 cars)
      • 0.082% fail on Linkage pins and bushes
      • 0.049% fail on Linkage (77% better than other 2009 cars)
      • 0.033% fail on Anti-roll bar
    • 0.34% fail on Wheel bearings
    • 0.23% fail on Shock absorbers (84% better than other 2009 cars)
    • 0.21% fail on Sub-frames
      • 0.16% fail on Sub-frame
      • 0.033% fail on Pins and bushes
      • 0.033% fail on Sub-frame mounting prescribed areas
    • 0.16% fail on Other suspension component
      • 0.13% fail on Ball joint
      • 0.033% fail on Pins and bushes
    • 0.065% fail on Suspension rods
      • 0.033% fail on Ball joint dust cover
      • 0.016% fail on Suspension rod
      • 0.016% fail on Ball joint
    • 0.033% fail on Component mounting prescribed areas
    • 0.016% fail on Macpherson strut
      • 0.016% fail on Pins and bushes
  • 10% fail on Lamps, reflectors and electrical equipment (27% better than other 2009 cars)
    • 3.4% fail on Headlamps
      • 3.3% fail on Headlamp
      • 0.082% fail on Headlamp levelling device
      • 0.016% fail on Dipswitch
    • 2.5% fail on Headlamp aim (23% better than other 2009 cars)
      • 2.3% fail on Headlamp aim (24% better than other 2009 cars)
      • 0.23% fail on Headlamp aim not tested
    • 2.1% fail on Position lamps
      • 2.0% fail on Position lamp
      • 0.082% fail on All position lamps
      • 0.016% fail on Switch
    • 2.1% fail on Direction indicators
      • 2.1% fail on Flashing type
        • 1.1% fail on Individual direction indicators
        • 1.0% fail on Side repeaters (62% worse than other 2009 cars)
    • 1.8% fail on Stop lamp (51% better than other 2009 cars)
    • 0.44% fail on Registration plate lamp(s) (80% better than other 2009 cars)
    • 0.25% fail on Front and rear fog lamps (57% better than other 2009 cars)
      • 0.25% fail on Rear fog lamp (57% better than other 2009 cars)
        • 0.25% fail on Rear fog lamp (56% better than other 2009 cars)
    • 0.15% fail on Electrical equipment (66% better than other 2009 cars)
      • 0.082% fail on Horn (68% better than other 2009 cars)
      • 0.049% fail on Electrical wiring
      • 0.016% fail on Trailer electrical socket
    • 0.033% fail on Reversing lamps
      • 0.033% fail on Reversing lamps
    • 0.033% fail on Mandatory tell-tales
      • 0.033% fail on Rear fog lamp tell-tale
    • 0.016% fail on Rear reflectors
  • 9.2% fail on Brakes (16% worse than other 2009 cars)
    • 4.6% fail on Rigid brake pipes (5 times worse than other 2009 cars)
    • 2.9% fail on Mechanical brake components
      • 2.1% fail on Brake linings and pads
        • 2.0% fail on Brake pads
        • 0.049% fail on Brake linings
      • 1.0% fail on Brake discs and drums
        • 1.0% fail on Brake discs
        • 0.016% fail on Brake drums
      • 0.065% fail on Brake cables, rods, levers and linkages
        • 0.049% fail on Cable
        • 0.016% fail on Lever
    • 2.8% fail on Brake performance (27% better than other 2009 cars)
      • 1.6% fail on Parking brake efficiency (sp)
        • 1.6% fail on Rbt (sp)
      • 0.97% fail on Service brake performance (54% better than other 2009 cars)
        • 0.97% fail on Rbt (53% better than other 2009 cars)
          • 0.87% fail on Service brake performance (50% better than other 2009 cars)
          • 0.15% fail on Service brake imbalance (66% better than other 2009 cars)
      • 0.39% fail on Parking brake performance (43% better than other 2009 cars)
        • 0.38% fail on Rbt (43% better than other 2009 cars)
          • 0.33% fail on Parking brake performance (44% better than other 2009 cars)
          • 0.049% fail on Parking (secondary brake performance)
        • 0.016% fail on Plate brake tester
          • 0.016% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.26% fail on Service Brake Efficiency (sp)
        • 0.26% fail on Rbt (sp)
          • 0.16% fail on Service brake performance
          • 0.13% fail on Service brake imbalance (66% better than other 2009 cars)
      • 0.18% fail on Brake performance not tested
    • 0.34% fail on ABS / EBS / ESC
      • 0.20% fail on Anti-lock braking system
      • 0.18% fail on Electronic stability control
      • 0.033% fail on Electronic braking system (8 times worse than other 2009 cars)
    • 0.098% fail on Parking brake control (72% better than other 2009 cars)
      • 0.098% fail on Lever (69% better than other 2009 cars)
    • 0.082% fail on Service brake pedal or hand lever (74% better than other 2009 cars)
      • 0.082% fail on Pedal
    • 0.065% fail on Flexible brake hoses
    • 0.065% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.049% fail on Hydraulic brake callipers
      • 0.016% fail on Hydraulic brake cylinder
    • 0.033% fail on Hydraulic systems
      • 0.033% fail on Brake fluid
    • 0.033% fail on Other components and prescribed areas
      • 0.033% fail on Other components
    • 0.016% fail on Air and vacuum systems
      • 0.016% fail on Servos
  • 7.0% fail on Tyres
    • 4.1% fail on Tread depth
    • 3.4% fail on Condition
    • 0.16% fail on Size/type
    • 0.016% fail on Tyre pressure monitoring system
  • 3.0% fail on Visibility (46% better than other 2009 cars)
    • 1.4% fail on Wipers (47% better than other 2009 cars)
    • 1.3% fail on Washers (49% better than other 2009 cars)
    • 0.16% fail on Driver's view
    • 0.13% fail on View to rear
      • 0.13% fail on Mirrors
    • 0.098% fail on Condition of glass
      • 0.098% fail on Windscreen
    • 0.033% fail on Bonnet
  • 2.4% fail on Noise, emissions and leaks (36% better than other 2009 cars)
    • 2.3% fail on Exhaust emissions (34% better than other 2009 cars)
      • 1.4% fail on Compression ignition
        • 0.65% fail on On or after 01/07/2008
        • 0.65% fail on Malfunction indicator lamp
        • 0.065% fail on Emissions not tested
      • 1.00% fail on Spark ignition (52% better than other 2009 cars)
        • 0.90% fail on Malfunction indicator lamp
        • 0.15% fail on Catalyst emissions (85% better than other 2009 cars)
        • 0.033% fail on Emissions not tested (87% better than other 2009 cars)
    • 0.11% fail on Fluid leaks
      • 0.082% fail on Engine oil leaks
      • 0.016% fail on Hydraulic fluid leaks
      • 0.016% fail on Other leaks
  • 1.4% fail on Body, chassis, structure (65% better than other 2009 cars)
    • 0.56% fail on Doors (170% worse than other 2009 cars)
      • 0.31% fail on Other passenger's door (2 times worse than other 2009 cars)
        • 0.31% fail on Door condition (3 times worse than other 2009 cars)
      • 0.20% fail on Front passenger's door (170% worse than other 2009 cars)
        • 0.20% fail on Door condition (190% worse than other 2009 cars)
      • 0.065% fail on Driver's door
        • 0.065% fail on Door condition
    • 0.41% fail on Exhaust system (75% better than other 2009 cars)
    • 0.11% fail on Bumpers
    • 0.065% fail on Fuel system
      • 0.033% fail on Fuel cap/sealing device
      • 0.033% fail on System
    • 0.065% fail on Body
      • 0.049% fail on Other body component
      • 0.016% fail on Body condition
    • 0.049% fail on Boot lid
      • 0.033% fail on Boot lid condition
      • 0.016% fail on Other boot lid component
    • 0.049% fail on Undertray
    • 0.033% fail on Integral vehicle structure
      • 0.033% fail on Sub-frame
        • 0.033% fail on Sub-frame condition
    • 0.033% fail on Seats
      • 0.033% fail on Driver's seat
    • 0.016% fail on Transmission
      • 0.016% fail on Drive shafts
        • 0.016% fail on Joints
  • 1.0% fail on Steering (47% better than other 2009 cars)
    • 0.92% fail on Steering linkage components (41% better than other 2009 cars)
      • 0.82% fail on Track rod end (43% better than other 2009 cars)
      • 0.098% fail on Ball joint
    • 0.033% fail on Steering gear (84% better than other 2009 cars)
      • 0.033% fail on Steering rack (83% better than other 2009 cars)
    • 0.033% fail on Power steering
      • 0.016% fail on Pipes and hoses
      • 0.016% fail on Rams
    • 0.016% fail on Steering wheel
    • 0.016% fail on Steering play
      • 0.016% fail on Steering rack
  • 0.98% fail on Seat belts and supplementary restraint systems
    • 0.65% fail on SRS malfunction indicator lamp
    • 0.28% fail on Seat belts
      • 0.25% fail on Condition
      • 0.033% fail on Requirements
    • 0.065% fail on Airbags
      • 0.049% fail on Passengers airbag (15 times worse than other 2009 cars)
      • 0.016% fail on Drivers airbag
  • 0.85% fail on Road Wheels (91% worse than other 2009 cars)
    • 0.52% fail on Attachment (70% worse than other 2009 cars)
    • 0.33% fail on Condition (140% worse than other 2009 cars)
  • 0.43% fail on Identification of the vehicle
    • 0.43% fail on Registration plates
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