Mercedes-Benz A-Class MOT Results

Registered in 2018
88.3% pass rate
from 42,339 tests in 2021
(3.7% better than other 2018 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 2018 cars and highlighted areas where the Mercedes-Benz A-Class is unusually good or bad.

  • 4.0% fail on Tyres (19% worse than other 2018 cars)
    • 2.4% fail on Condition (17% worse than other 2018 cars)
    • 1.7% fail on Tread depth (22% worse than other 2018 cars)
    • 0.040% fail on Size/type
  • 2.3% fail on Visibility (29% better than other 2018 cars)
    • 1.3% fail on Wipers (45% better than other 2018 cars)
    • 0.92% fail on Washers
    • 0.087% fail on Condition of glass
      • 0.085% fail on Windscreen
      • 0.0024% fail on Window
    • 0.031% fail on View to rear
      • 0.028% fail on Mirrors
      • 0.0024% fail on Indirect vision devices
    • 0.0071% fail on Bonnet
    • 0.0047% fail on Driver's view
  • 2.0% fail on Lamps, reflectors and electrical equipment (25% better than other 2018 cars)
    • 1.5% fail on Headlamp aim
      • 1.5% fail on Headlamp aim
      • 0.019% fail on Headlamp aim not tested
    • 0.25% fail on Headlamps (37% better than other 2018 cars)
      • 0.24% fail on Headlamp (27% better than other 2018 cars)
      • 0.0047% fail on Dipswitch
      • 0.0047% fail on Headlamp levelling device (82% better than other 2018 cars)
    • 0.20% fail on Direction indicators
      • 0.20% fail on Flashing type
        • 0.14% fail on Side repeaters
        • 0.057% fail on Individual direction indicators
        • 0.0024% fail on All direction indicators
    • 0.033% fail on Stop lamp (82% better than other 2018 cars)
    • 0.028% fail on Front and rear fog lamps (84% better than other 2018 cars)
      • 0.028% fail on Rear fog lamp (77% better than other 2018 cars)
        • 0.028% fail on Rear fog lamp (77% better than other 2018 cars)
    • 0.017% fail on Registration plate lamp(s) (88% better than other 2018 cars)
    • 0.014% fail on Position lamps
      • 0.012% fail on Position lamp
      • 0.0024% fail on Switch
    • 0.012% fail on Reversing lamps (72% better than other 2018 cars)
      • 0.012% fail on Reversing lamps (72% better than other 2018 cars)
    • 0.012% fail on Rear reflectors
    • 0.012% fail on Electrical equipment (75% better than other 2018 cars)
      • 0.0047% fail on Trailer electrical socket
      • 0.0047% fail on Horn (84% better than other 2018 cars)
      • 0.0024% fail on Electrical wiring
    • 0.0071% fail on Mandatory tell-tales
      • 0.0071% fail on Rear fog lamp tell-tale
  • 1.4% fail on Seat belts and supplementary restraint systems (3 times worse than other 2018 cars)
    • 1.3% fail on SRS malfunction indicator lamp (8 times worse than other 2018 cars)
    • 0.078% fail on Seat belts (54% better than other 2018 cars)
      • 0.066% fail on Condition (59% better than other 2018 cars)
      • 0.0071% fail on Pre-tensioners (38 times worse than other 2018 cars)
      • 0.0047% fail on Requirements
    • 0.066% fail on Airbags (16 times worse than other 2018 cars)
      • 0.040% fail on Drivers airbag (13 times worse than other 2018 cars)
      • 0.028% fail on Passengers airbag (24 times worse than other 2018 cars)
  • 0.98% fail on Brakes (29% better than other 2018 cars)
    • 0.73% fail on Mechanical brake components (23% better than other 2018 cars)
      • 0.68% fail on Brake linings and pads (19% better than other 2018 cars)
        • 0.68% fail on Brake pads (19% better than other 2018 cars)
      • 0.078% fail on Brake discs and drums (56% better than other 2018 cars)
        • 0.076% fail on Brake discs (57% better than other 2018 cars)
        • 0.0024% fail on Brake drums
    • 0.19% fail on Brake performance (42% better than other 2018 cars)
      • 0.085% fail on Service brake performance (52% better than other 2018 cars)
        • 0.085% fail on Rbt (50% better than other 2018 cars)
          • 0.076% fail on Service brake performance (47% better than other 2018 cars)
          • 0.014% fail on Service brake imbalance
      • 0.061% fail on Parking brake efficiency (sp)
        • 0.061% fail on Rbt (sp)
      • 0.035% fail on Parking brake performance
        • 0.035% fail on Rbt
          • 0.031% fail on Parking brake performance
          • 0.0024% fail on Parking (secondary brake performance)
          • 0.0024% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.014% fail on Service Brake Efficiency (sp) (64% better than other 2018 cars)
        • 0.014% fail on Rbt (sp)
          • 0.012% fail on Service brake performance
          • 0.0024% fail on Service brake imbalance
      • 0.012% fail on Brake performance not tested
    • 0.033% fail on Hydraulic systems (130% worse than other 2018 cars)
      • 0.017% fail on Reservoirs (180% worse than other 2018 cars)
      • 0.017% fail on Brake fluid
    • 0.031% fail on ABS / EBS / ESC
      • 0.017% fail on Electronic stability control
      • 0.012% fail on Anti-lock braking system
      • 0.012% fail on Electronic braking system
    • 0.017% fail on Service brake pedal or hand lever (70% better than other 2018 cars)
      • 0.017% fail on Pedal
    • 0.017% fail on Flexible brake hoses
    • 0.0071% fail on Other components and prescribed areas
      • 0.0071% fail on Other components
    • 0.0047% fail on Rigid brake pipes
    • 0.0047% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.0047% fail on Hydraulic brake callipers
  • 0.39% fail on Identification of the vehicle (63% worse than other 2018 cars)
    • 0.39% fail on Registration plates (62% worse than other 2018 cars)
    • 0.0024% fail on Vehicle Identification Number
  • 0.31% fail on Noise, emissions and leaks (26% better than other 2018 cars)
    • 0.29% fail on Exhaust emissions (28% better than other 2018 cars)
      • 0.17% fail on Compression ignition
        • 0.16% fail on Malfunction indicator lamp
        • 0.0071% fail on On or after 01/01/2014
        • 0.0071% fail on Emissions not tested
        • 0.0024% fail on Emission control equipment
          • 0.0024% fail on NOx sensor
      • 0.12% fail on Spark ignition (54% better than other 2018 cars)
        • 0.090% fail on Malfunction indicator lamp (46% better than other 2018 cars)
        • 0.026% fail on Catalyst emissions (72% better than other 2018 cars)
        • 0.0047% fail on Emissions not tested
        • 0.0024% fail on Emission control equipment
          • 0.0024% fail on Catalytic converter
    • 0.014% fail on Fluid leaks
      • 0.0094% fail on Engine oil leaks
      • 0.0047% fail on Other leaks
    • 0.0071% fail on Noise suppression
      • 0.0071% fail on Undertray
  • 0.31% fail on Road Wheels (150% worse than other 2018 cars)
    • 0.17% fail on Condition (2 times worse than other 2018 cars)
    • 0.15% fail on Attachment (100% worse than other 2018 cars)
  • 0.12% fail on Suspension (66% better than other 2018 cars)
    • 0.028% fail on Springs (57% better than other 2018 cars)
      • 0.028% fail on Coil springs (56% better than other 2018 cars)
        • 0.028% fail on Coil spring (55% better than other 2018 cars)
    • 0.028% fail on Suspension arms (71% better than other 2018 cars)
      • 0.026% fail on Ball joint
      • 0.0047% fail on Ball joint dust cover
      • 0.0024% fail on Pins and bushes
    • 0.021% fail on Shock absorbers (74% better than other 2018 cars)
    • 0.021% fail on Anti-roll bars (71% better than other 2018 cars)
      • 0.0047% fail on Linkage
      • 0.0047% fail on Linkage ball joints (86% better than other 2018 cars)
      • 0.0047% fail on Ball joint dust cover
      • 0.0047% fail on Linkage ball joint dust cover
      • 0.0024% fail on Linkage pins and bushes
    • 0.019% fail on Wheel bearings
    • 0.0047% fail on Other suspension component
      • 0.0047% fail on Ball joint
  • 0.11% fail on Body, chassis, structure (49% better than other 2018 cars)
    • 0.026% fail on Bumpers
    • 0.021% fail on Body
      • 0.019% fail on Other body component
      • 0.0024% fail on Panel
    • 0.019% fail on Transmission (68% better than other 2018 cars)
      • 0.017% fail on Drive shafts (70% better than other 2018 cars)
        • 0.017% fail on Joints (70% better than other 2018 cars)
      • 0.0024% fail on Prop shafts
        • 0.0024% fail on Joints
    • 0.012% fail on Undertray
    • 0.0094% fail on Exhaust system
    • 0.0094% fail on Fuel system (69% better than other 2018 cars)
      • 0.0071% fail on Fuel cap/sealing device
      • 0.0024% fail on Tank
    • 0.0071% fail on Seats
      • 0.0071% fail on Passenger's seat
    • 0.0047% fail on Doors (80% better than other 2018 cars)
      • 0.0024% fail on Driver's door
        • 0.0024% fail on Door condition
      • 0.0024% fail on Front passenger's door
        • 0.0024% fail on Door condition
    • 0.0024% fail on Chassis
      • 0.0024% fail on Chassis condition
    • 0.0024% fail on Engine mounting
      • 0.0024% fail on Bracket
  • 0.035% fail on Steering (58% better than other 2018 cars)
    • 0.028% fail on Steering linkage components
      • 0.021% fail on Track rod end
      • 0.0047% fail on Steering arm
      • 0.0024% fail on Other components
        • 0.0024% fail on Steering linkage
      • 0.0024% fail on Locking devices
    • 0.0024% fail on Steering gear
      • 0.0024% fail on Steering rack
    • 0.0024% fail on Steering play
      • 0.0024% fail on Steering rack
    • 0.0024% fail on Electronic power steering
  • 0.0047% fail on Speedometer and speed limiter (8 times worse than other 2018 cars)
    • 0.0047% fail on Speedometer (8 times worse than other 2018 cars)
  • 0.0024% fail on Seat belt installation check
    • 0.0024% fail on Belt(s)/padding
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