Mercedes-Benz A-Class MOT Results

Registered in 2012
72.2% pass rate
from 5,575 tests in 2021
(8.2% 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 A-Class is unusually good or bad.

  • 11% fail on Lamps, reflectors and electrical equipment (21% worse than other 2012 cars)
    • 4.4% fail on Direction indicators (160% worse than other 2012 cars)
      • 4.4% fail on Flashing type (160% worse than other 2012 cars)
        • 4.1% fail on Side repeaters (5 times worse than other 2012 cars)
        • 0.36% fail on Individual direction indicators (62% better than other 2012 cars)
        • 0.018% fail on All direction indicators
    • 3.6% fail on Headlamp aim (48% worse than other 2012 cars)
      • 3.5% fail on Headlamp aim (57% worse than other 2012 cars)
      • 0.14% fail on Headlamp aim not tested
    • 2.5% fail on Headlamps
      • 2.4% fail on Headlamp
      • 0.072% fail on Headlamp levelling device
      • 0.018% fail on Headlamp cleaning device
    • 0.66% fail on Electrical equipment (200% worse than other 2012 cars)
      • 0.61% fail on Horn (3 times worse than other 2012 cars)
      • 0.036% fail on Electrical wiring
      • 0.018% fail on Battery(ies)
    • 0.63% fail on Stop lamp (69% better than other 2012 cars)
    • 0.30% fail on Registration plate lamp(s) (78% better than other 2012 cars)
    • 0.16% fail on Reversing lamps
      • 0.14% fail on Reversing lamps
      • 0.018% fail on Reversing lamp switch
    • 0.11% fail on Front and rear fog lamps (72% better than other 2012 cars)
      • 0.11% fail on Rear fog lamp (72% better than other 2012 cars)
        • 0.11% fail on Rear fog lamp (72% better than other 2012 cars)
    • 0.018% fail on Position lamps
      • 0.018% fail on Position lamp
  • 6.6% fail on Brakes
    • 3.0% fail on Mechanical brake components
      • 2.7% fail on Brake linings and pads (28% worse than other 2012 cars)
        • 2.5% fail on Brake pads
        • 0.13% fail on Brake linings (7 times worse than other 2012 cars)
      • 0.63% fail on Brake discs and drums (35% better than other 2012 cars)
        • 0.63% fail on Brake discs (35% better than other 2012 cars)
      • 0.018% fail on Brake cables, rods, levers and linkages
        • 0.018% fail on Lever
    • 2.8% fail on Brake performance
      • 1.4% fail on Service Brake Efficiency (sp) (2 times worse than other 2012 cars)
        • 1.4% fail on Rbt (sp) (2 times worse than other 2012 cars)
          • 1.2% fail on Service brake performance (6 times worse than other 2012 cars)
          • 0.22% fail on Service brake imbalance
      • 0.93% fail on Service brake performance (33% better than other 2012 cars)
        • 0.91% fail on Rbt (33% better than other 2012 cars)
          • 0.77% fail on Service brake performance (35% better than other 2012 cars)
          • 0.20% fail on Service brake imbalance
        • 0.018% fail on Plate brake tester
          • 0.018% fail on Service brake performance
      • 0.68% fail on Parking brake efficiency (sp)
        • 0.68% fail on Rbt (sp)
      • 0.25% fail on Parking brake performance
        • 0.25% fail on Rbt
          • 0.18% fail on Parking brake performance (54% better than other 2012 cars)
          • 0.054% fail on Parking (secondary brake performance)
          • 0.018% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.14% fail on Brake performance not tested
    • 1.2% fail on Rigid brake pipes (180% worse than other 2012 cars)
    • 0.25% fail on ABS / EBS / ESC
      • 0.14% fail on Anti-lock braking system
      • 0.14% fail on Electronic stability control
    • 0.16% fail on Service brake pedal or hand lever
      • 0.13% fail on Hand lever
      • 0.036% fail on Pedal
    • 0.14% fail on Parking brake control
      • 0.14% fail on Lever
    • 0.018% fail on Air and vacuum systems
      • 0.018% fail on Servos
    • 0.018% fail on Hydraulic systems
      • 0.018% fail on Reservoirs
    • 0.018% fail on Flexible brake hoses
    • 0.018% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.018% fail on Hydraulic brake callipers
    • 0.018% fail on Other components and prescribed areas
      • 0.018% fail on Other components
  • 6.1% fail on Suspension (34% better than other 2012 cars)
    • 4.5% fail on Springs
      • 4.5% fail on Coil springs
        • 4.5% fail on Coil spring
        • 0.018% fail on Mounting
    • 1.0% fail on Suspension arms (66% better than other 2012 cars)
      • 0.93% fail on Ball joint (40% better than other 2012 cars)
      • 0.090% fail on Ball joint dust cover (75% better than other 2012 cars)
      • 0.072% fail on Pins and bushes (94% better than other 2012 cars)
    • 0.45% fail on Anti-roll bars (71% better than other 2012 cars)
      • 0.30% fail on Linkage ball joint dust cover
      • 0.072% fail on Ball joint dust cover
      • 0.054% fail on Linkage ball joints (91% better than other 2012 cars)
      • 0.018% fail on Ball joint
    • 0.29% fail on Shock absorbers (46% better than other 2012 cars)
    • 0.054% fail on Wheel bearings (84% better than other 2012 cars)
    • 0.036% fail on Other suspension component
      • 0.018% fail on Ball joint
      • 0.018% fail on Ball joint dust cover
    • 0.018% fail on Macpherson strut
      • 0.018% fail on Pins and bushes
    • 0.018% fail on Suspension rods
      • 0.018% fail on Ball joint dust cover
    • 0.018% fail on Air/gas/fluid suspension
      • 0.018% fail on Suspension unit
  • 4.2% fail on Visibility
    • 3.2% fail on Washers (50% worse than other 2012 cars)
    • 0.81% fail on Wipers (65% better than other 2012 cars)
    • 0.20% fail on View to rear (150% worse than other 2012 cars)
      • 0.20% fail on Mirrors (150% worse than other 2012 cars)
    • 0.14% fail on Bonnet
    • 0.054% fail on Condition of glass
      • 0.054% fail on Windscreen
  • 3.6% fail on Tyres (35% better than other 2012 cars)
    • 2.0% fail on Condition (25% better than other 2012 cars)
    • 1.6% fail on Tread depth (48% better than other 2012 cars)
    • 0.072% fail on Size/type
  • 1.5% fail on Noise, emissions and leaks (27% better than other 2012 cars)
    • 1.5% fail on Exhaust emissions (24% better than other 2012 cars)
      • 1.0% fail on Spark ignition
        • 0.93% fail on Malfunction indicator lamp
        • 0.090% fail on Catalyst emissions (83% better than other 2012 cars)
        • 0.036% fail on Emissions not tested
      • 0.43% fail on Compression ignition
        • 0.39% fail on Malfunction indicator lamp
        • 0.036% fail on On or after 01/07/2008 (84% better than other 2012 cars)
        • 0.018% fail on Emission control equipment
          • 0.018% fail on Other emission control equipment
    • 0.018% fail on Noise suppression
      • 0.018% fail on Undertray
    • 0.018% fail on Fluid leaks
      • 0.018% fail on Engine oil leaks
  • 1.3% fail on Body, chassis, structure (49% better than other 2012 cars)
    • 0.48% fail on Transmission (55% better than other 2012 cars)
      • 0.45% fail on Drive shafts (57% better than other 2012 cars)
        • 0.45% fail on Joints (56% better than other 2012 cars)
      • 0.036% fail on Prop shafts
        • 0.036% fail on Joints
    • 0.20% fail on Exhaust system (80% better than other 2012 cars)
    • 0.18% fail on Doors
      • 0.11% fail on Other passenger's door
        • 0.11% fail on Door condition
      • 0.054% fail on Front passenger's door
        • 0.054% fail on Door condition
      • 0.018% fail on Driver's door
        • 0.018% fail on Door condition
    • 0.14% fail on Fuel system
      • 0.14% fail on Fuel cap/sealing device
    • 0.14% fail on Bumpers
    • 0.054% fail on Engine mounting
      • 0.054% fail on Engine mounting condition
    • 0.054% fail on Body
      • 0.054% fail on Other body component
    • 0.036% fail on Seats
      • 0.018% fail on Driver's seat
      • 0.018% fail on Passenger's seat
    • 0.036% fail on Undertray
    • 0.018% fail on Load security
      • 0.018% fail on Loading door
  • 0.88% fail on Seat belts and supplementary restraint systems
    • 0.79% fail on SRS malfunction indicator lamp (110% worse than other 2012 cars)
    • 0.072% fail on Seat belts (74% better than other 2012 cars)
      • 0.072% fail on Condition (71% better than other 2012 cars)
    • 0.018% fail on Airbags
      • 0.018% fail on Passengers airbag
  • 0.39% fail on Road Wheels
    • 0.22% fail on Attachment
    • 0.18% fail on Condition
  • 0.25% fail on Steering (84% better than other 2012 cars)
    • 0.14% fail on Steering linkage components (89% better than other 2012 cars)
      • 0.090% fail on Track rod end (93% better than other 2012 cars)
      • 0.054% fail on Ball joint
    • 0.072% fail on Steering gear
      • 0.072% fail on Steering rack
    • 0.036% fail on Steering play
      • 0.036% fail on Steering rack
  • 0.23% fail on Identification of the vehicle
    • 0.23% fail on Registration plates
  • 0.036% fail on Seat belt installation check (6 times worse than other 2012 cars)
    • 0.036% fail on Belt(s)/padding (12 times worse than other 2012 cars)
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