Mercedes-Benz C-Class MOT Results

Registered in 1997
65.0% pass rate
from 1,401 tests in 2020
(16% better than other 1997 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 1997 cars and highlighted areas where the Mercedes-Benz C-Class is unusually good or bad.

  • 17% fail on Lamps, reflectors and electrical equipment
    • 5.7% fail on Direction indicators (120% worse than other 1997 cars)
      • 5.7% fail on Flashing type (120% worse than other 1997 cars)
        • 3.1% fail on Side repeaters (2 times worse than other 1997 cars)
        • 3.0% fail on Individual direction indicators (81% worse than other 1997 cars)
        • 0.43% fail on All direction indicators
    • 3.8% fail on Stop lamp
    • 3.4% fail on Headlamp aim
      • 3.2% fail on Headlamp aim
      • 0.21% fail on Headlamp aim not tested
    • 2.9% fail on Headlamps
      • 2.7% fail on Headlamp
      • 0.21% fail on Headlamp levelling device
    • 2.9% fail on Position lamps
      • 2.6% fail on Position lamp
      • 0.29% fail on All position lamps (3 times worse than other 1997 cars)
    • 1.7% fail on Registration plate lamp(s)
    • 1.00% fail on Front and rear fog lamps (50% better than other 1997 cars)
      • 1.00% fail on Rear fog lamp (50% better than other 1997 cars)
        • 0.93% fail on Rear fog lamp (52% better than other 1997 cars)
        • 0.14% fail on Switch
    • 0.29% fail on Electrical equipment (80% better than other 1997 cars)
      • 0.21% fail on Horn (73% better than other 1997 cars)
      • 0.071% fail on Battery(ies)
    • 0.071% fail on Hazard warning
      • 0.071% fail on Switch
    • 0.071% fail on Mandatory tell-tales
      • 0.071% fail on Main beam tell-tale
  • 9.1% fail on Suspension (37% better than other 1997 cars)
    • 5.1% fail on Suspension arms
      • 2.8% fail on Ball joint (53% worse than other 1997 cars)
      • 1.4% fail on Pins and bushes
      • 0.79% fail on Ball joint dust cover
      • 0.43% fail on Suspension arm
    • 1.7% fail on Component mounting prescribed areas (67% better than other 1997 cars)
    • 1.4% fail on Springs
      • 1.3% fail on Coil springs
        • 1.1% fail on Coil spring
        • 0.14% fail on Mounting
      • 0.071% fail on Spring mounting prescribed areas
    • 0.86% fail on Anti-roll bars (70% better than other 1997 cars)
      • 0.36% fail on Pins and bushes
      • 0.36% fail on Linkage pins and bushes
      • 0.071% fail on Attachment bracket and mounting
      • 0.071% fail on Linkage attachment bracket and mounting
    • 0.79% fail on Other suspension component
      • 0.57% fail on Ball joint
      • 0.14% fail on Ball joint dust cover
      • 0.071% fail on Pins and bushes
    • 0.71% fail on Wheel bearings (55% better than other 1997 cars)
    • 0.21% fail on Shock absorbers (85% better than other 1997 cars)
    • 0.21% fail on Sub-frames
      • 0.14% fail on Pins and bushes
      • 0.071% fail on Sub-frame mounting prescribed areas
  • 8.1% fail on Brakes (39% better than other 1997 cars)
    • 2.8% fail on Mechanical brake components
      • 2.5% fail on Brake linings and pads (76% worse than other 1997 cars)
        • 2.5% fail on Brake pads (77% worse than other 1997 cars)
      • 0.43% fail on Brake discs and drums
        • 0.43% fail on Brake discs
    • 2.1% fail on Rigid brake pipes
    • 1.9% fail on Brake performance (75% better than other 1997 cars)
      • 0.79% fail on Service brake performance (70% better than other 1997 cars)
        • 0.71% fail on Rbt (72% better than other 1997 cars)
          • 0.57% fail on Service brake performance (72% better than other 1997 cars)
          • 0.14% fail on Service brake imbalance (79% better than other 1997 cars)
        • 0.071% fail on Plate brake tester
          • 0.071% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.57% fail on Service Brake Efficiency (sp) (82% better than other 1997 cars)
        • 0.57% fail on Rbt (sp) (81% better than other 1997 cars)
          • 0.43% fail on Service brake performance (73% better than other 1997 cars)
          • 0.29% fail on Service brake imbalance (84% better than other 1997 cars)
      • 0.57% fail on Parking brake performance (60% better than other 1997 cars)
        • 0.57% fail on Rbt (59% better than other 1997 cars)
          • 0.50% fail on Parking brake performance
          • 0.071% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.57% fail on Parking brake efficiency (sp) (84% better than other 1997 cars)
        • 0.57% fail on Rbt (sp) (83% better than other 1997 cars)
      • 0.29% fail on Brake performance not tested
    • 1.6% fail on ABS / EBS / ESC
      • 1.4% fail on Anti-lock braking system
      • 0.29% fail on Electronic stability control
      • 0.071% fail on Electronic braking system
    • 0.64% fail on Flexible brake hoses
    • 0.14% fail on Hydraulic systems
      • 0.14% fail on Brake fluid
    • 0.071% fail on Air and vacuum systems
      • 0.071% fail on Servos
    • 0.071% fail on Parking brake control
      • 0.071% fail on Lever
    • 0.071% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.071% fail on Hydraulic brake callipers
  • 5.6% fail on Noise, emissions and leaks (32% better than other 1997 cars)
    • 5.0% fail on Exhaust emissions (34% better than other 1997 cars)
      • 4.7% fail on Spark ignition (32% better than other 1997 cars)
        • 3.8% fail on Catalyst emissions (33% better than other 1997 cars)
        • 0.71% fail on Emissions not tested
        • 0.21% fail on Non catalyst emissions
        • 0.071% fail on Emission control equipment
          • 0.071% fail on Oxygen sensor
      • 0.29% fail on Compression ignition
        • 0.14% fail on Emissions not tested
        • 0.071% fail on Pre 01/07/2008 Turbo
        • 0.071% fail on Malfunction indicator lamp
    • 1.00% fail on Fluid leaks
      • 0.64% fail on Engine oil leaks
      • 0.21% fail on Other leaks
      • 0.14% fail on Transmission oil leaks
  • 5.5% fail on Tyres
    • 3.9% fail on Tread depth (49% worse than other 1997 cars)
    • 1.8% fail on Condition
    • 0.071% fail on Size/type
  • 5.4% fail on Visibility (25% better than other 1997 cars)
    • 3.3% fail on Wipers
    • 1.6% fail on Washers (49% better than other 1997 cars)
    • 0.50% fail on Driver's view (2 times worse than other 1997 cars)
    • 0.43% fail on View to rear
      • 0.43% fail on Mirrors
    • 0.21% fail on Bonnet
    • 0.071% fail on Condition of glass
      • 0.071% fail on Windscreen
  • 4.4% fail on Body, chassis, structure (60% better than other 1997 cars)
    • 1.9% fail on Fuel system (170% worse than other 1997 cars)
      • 0.71% fail on Fuel cap/sealing device (2 times worse than other 1997 cars)
      • 0.64% fail on Hose (5 times worse than other 1997 cars)
      • 0.57% fail on Pipe (180% worse than other 1997 cars)
      • 0.071% fail on Tank
      • 0.071% fail on System
    • 0.79% fail on Exhaust system (78% better than other 1997 cars)
    • 0.43% fail on Integral vehicle structure (74% better than other 1997 cars)
      • 0.43% fail on Integral vehicle structure condition (74% better than other 1997 cars)
    • 0.36% fail on Chassis (74% better than other 1997 cars)
      • 0.36% fail on Chassis condition (74% better than other 1997 cars)
    • 0.36% fail on Transmission (89% better than other 1997 cars)
      • 0.29% fail on Prop shafts
        • 0.14% fail on Joints
        • 0.071% fail on Prop shaft
        • 0.071% fail on Flexible couplings
      • 0.071% fail on Drive shafts
        • 0.071% fail on Joints
    • 0.29% fail on Body
      • 0.14% fail on Panel
      • 0.14% fail on Other body component
    • 0.21% fail on Bumpers
    • 0.14% fail on Towbar
      • 0.14% fail on Vehicle structure
    • 0.14% fail on Doors
      • 0.14% fail on Other passenger's door
        • 0.14% fail on Door condition
    • 0.14% fail on Seats
      • 0.071% fail on Driver's seat
      • 0.071% fail on Passenger's seat
    • 0.071% fail on Floor
  • 2.9% fail on Steering
    • 2.7% fail on Steering linkage components
      • 2.5% fail on Track rod end (60% worse than other 1997 cars)
      • 0.21% fail on Drag link end
      • 0.071% fail on Other components
        • 0.071% fail on Steering linkage
    • 0.071% fail on Power steering
      • 0.071% fail on Operation
    • 0.071% fail on Steering play
      • 0.071% fail on Steering box
  • 2.1% fail on Seat belts and supplementary restraint systems (54% better than other 1997 cars)
    • 1.2% fail on SRS malfunction indicator lamp
    • 0.93% fail on Seat belts (73% better than other 1997 cars)
      • 0.71% fail on Prescribed areas (75% better than other 1997 cars)
      • 0.21% fail on Condition
  • 0.79% fail on Identification of the vehicle
    • 0.79% fail on Registration plates
  • 0.57% fail on Road Wheels
    • 0.50% fail on Attachment
    • 0.071% fail on Condition

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