MOT Results

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Mercedes-Benz CLA MOT Results

63.7% pass rate
from 295 tests in 2020
(33% worse than other pre-1990 cars)
More MoT Results
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 pre-1990 cars and highlighted areas where the Mercedes-Benz CLA is unusually good or bad.

  • 22% fail on Lamps, reflectors and electrical equipment (63% worse than other pre-1990 cars)
    • 6.4% fail on Front and rear fog lamps (170% worse than other pre-1990 cars)
      • 6.4% fail on Rear fog lamp (170% worse than other pre-1990 cars)
        • 6.4% fail on Rear fog lamp (180% worse than other pre-1990 cars)
        • 0.34% fail on Switch
    • 5.4% fail on Headlamp aim
      • 5.4% fail on Headlamp aim
      • 0.34% fail on Headlamp aim not tested
    • 5.4% fail on Direction indicators (98% worse than other pre-1990 cars)
      • 5.4% fail on Flashing type (98% worse than other pre-1990 cars)
        • 3.7% fail on Individual direction indicators (130% worse than other pre-1990 cars)
        • 1.0% fail on Side repeaters
        • 0.68% fail on All direction indicators
    • 4.7% fail on Registration plate lamp(s) (2 times worse than other pre-1990 cars)
    • 4.4% fail on Electrical equipment
      • 3.7% fail on Horn (140% worse than other pre-1990 cars)
      • 0.34% fail on Electrical wiring
      • 0.34% fail on Battery(ies)
    • 4.1% fail on Headlamps
      • 3.7% fail on Headlamp
      • 0.34% fail on Matched pair
    • 3.4% fail on Stop lamp
    • 3.1% fail on Position lamps
      • 3.1% fail on Position lamp
    • 1.4% fail on Mandatory tell-tales
      • 1.0% fail on Rear fog lamp tell-tale
      • 0.34% fail on Main beam tell-tale
    • 0.68% fail on Hazard warning
      • 0.68% fail on Switch
  • 20% fail on Brakes (110% worse than other pre-1990 cars)
    • 14% fail on Brake performance (93% worse than other pre-1990 cars)
      • 8.5% fail on Service Brake Efficiency (sp) (190% worse than other pre-1990 cars)
        • 8.5% fail on Rbt (sp) (200% worse than other pre-1990 cars)
          • 5.8% fail on Service brake imbalance (180% worse than other pre-1990 cars)
          • 5.1% fail on Service brake performance (3 times worse than other pre-1990 cars)
      • 7.1% fail on Service brake performance (110% worse than other pre-1990 cars)
        • 7.1% fail on Rbt (120% worse than other pre-1990 cars)
          • 6.1% fail on Service brake performance (130% worse than other pre-1990 cars)
          • 2.7% fail on Service brake imbalance (2 times worse than other pre-1990 cars)
      • 2.7% fail on Parking brake efficiency (sp)
        • 2.7% fail on Rbt (sp)
      • 1.0% fail on Parking brake performance
        • 1.0% fail on Rbt
          • 0.68% fail on Parking brake performance
          • 0.34% fail on Parking (secondary brake performance)
      • 0.34% fail on Brake performance not tested
    • 4.7% fail on Rigid brake pipes (2 times worse than other pre-1990 cars)
    • 3.1% fail on Other components and prescribed areas (13 times worse than other pre-1990 cars)
      • 3.1% fail on Prescribed areas (16 times worse than other pre-1990 cars)
        • 2.7% fail on Master cylinder/servo mounting (21 times worse than other pre-1990 cars)
        • 0.34% fail on Other braking system component
    • 2.0% fail on Flexible brake hoses (4 times worse than other pre-1990 cars)
    • 1.0% fail on Hydraulic systems
      • 0.68% fail on Brake fluid
      • 0.34% fail on Master cylinder
    • 1.0% fail on Load sensing valves (12 times worse than other pre-1990 cars)
    • 0.34% fail on Service brake pedal or hand lever
      • 0.34% fail on Hand lever
    • 0.34% fail on Air and vacuum systems
      • 0.34% fail on Leaks
      • 0.34% fail on Valves
  • 12% fail on Visibility (85% worse than other pre-1990 cars)
    • 7.5% fail on Washers
    • 5.8% fail on Wipers (140% worse than other pre-1990 cars)
    • 1.0% fail on Bonnet (6 times worse than other pre-1990 cars)
    • 0.68% fail on View to rear
      • 0.68% fail on Mirrors
  • 9.8% fail on Body, chassis, structure
    • 3.7% fail on Exhaust system
    • 2.4% fail on Chassis
      • 2.4% fail on Chassis condition
    • 2.0% fail on Body (6 times worse than other pre-1990 cars)
      • 1.0% fail on Panel (7 times worse than other pre-1990 cars)
      • 1.0% fail on Other body component (8 times worse than other pre-1990 cars)
      • 0.34% fail on Body condition
      • 0.34% fail on Mounting fixings
    • 1.7% fail on Seats
      • 1.4% fail on Passenger's seat (4 times worse than other pre-1990 cars)
      • 0.68% fail on Driver's seat
    • 0.68% fail on Fuel system
      • 0.34% fail on Pipe
      • 0.34% fail on Fuel cap/sealing device
    • 0.68% fail on Transmission
      • 0.68% fail on Prop shafts
        • 0.34% fail on Prop shaft
        • 0.34% fail on Joints
    • 0.68% fail on Doors
      • 0.68% fail on Front passenger's door
        • 0.34% fail on Door condition
        • 0.34% fail on Catch
    • 0.34% fail on Integral vehicle structure
      • 0.34% fail on Integral vehicle structure condition
    • 0.34% fail on Spare wheel
      • 0.34% fail on Carrier
    • 0.34% fail on Cabs
      • 0.34% fail on Steps
      • 0.34% fail on Prescribed areas
  • 7.5% fail on Suspension
    • 2.7% fail on Springs (2 times worse than other pre-1990 cars)
      • 1.4% fail on Leaf springs (7 times worse than other pre-1990 cars)
        • 0.34% fail on Anchor bracket
        • 0.34% fail on Anchor pins and bushes
        • 0.34% fail on Fixings and fixing bolts
        • 0.34% fail on Shackle pins and bushes
      • 1.0% fail on Spring mounting prescribed areas (3 times worse than other pre-1990 cars)
      • 0.34% fail on Coil springs
        • 0.34% fail on Coil spring
    • 2.7% fail on Component mounting prescribed areas
    • 1.0% fail on Wheel bearings
    • 1.0% fail on Shock absorbers
    • 0.34% fail on Axles
      • 0.34% fail on Stub axle
    • 0.34% fail on Suspension arms
      • 0.34% fail on Ball joint dust cover
    • 0.34% fail on Anti-roll bars
      • 0.34% fail on Pins and bushes
      • 0.34% fail on Linkage pins and bushes
    • 0.34% fail on Sub-frames
      • 0.34% fail on Attachment bracket and mounting
    • 0.34% fail on Other suspension component
      • 0.34% fail on Pins and bushes
  • 6.1% fail on Steering
    • 4.7% fail on Steering linkage components (140% worse than other pre-1990 cars)
      • 3.1% fail on Track rod end (150% worse than other pre-1990 cars)
      • 1.4% fail on Drag link end (3 times worse than other pre-1990 cars)
      • 0.68% fail on Ball joint
      • 0.34% fail on Other components
        • 0.34% fail on Steering component
    • 1.0% fail on Prescribed areas (6 times worse than other pre-1990 cars)
    • 0.68% fail on Steering gear
      • 0.68% fail on Steering box
    • 0.68% fail on Steering play
      • 0.34% fail on Steering box
      • 0.34% fail on Steering rack
    • 0.34% fail on Power steering
      • 0.34% fail on Pump
  • 4.1% fail on Tyres (160% worse than other pre-1990 cars)
    • 2.7% fail on Condition (2 times worse than other pre-1990 cars)
    • 1.4% fail on Tread depth
    • 0.34% fail on Size/type
  • 3.1% fail on Seat belts and supplementary restraint systems
    • 3.1% fail on Seat belts
      • 1.7% fail on Condition (2 times worse than other pre-1990 cars)
      • 1.0% fail on Prescribed areas
      • 0.34% fail on Requirements
  • 1.7% fail on Noise, emissions and leaks
    • 1.4% fail on Exhaust emissions
      • 1.4% fail on Compression ignition (3 times worse than other pre-1990 cars)
        • 1.0% fail on Pre 01/07/2008 Non turbo (9 times worse than other pre-1990 cars)
        • 0.68% fail on Emissions not tested (7 times worse than other pre-1990 cars)
        • 0.34% fail on Pre 01/07/2008 Turbo
    • 0.34% fail on Fluid leaks
      • 0.34% fail on Other leaks
  • 0.68% fail on Identification of the vehicle
    • 0.68% fail on Registration plates
  • 0.34% fail on Speedometer and speed limiter
    • 0.34% fail on Speedometer