MG MGB MOT Results

Registered in 1981
70.9% pass rate
from 499 tests in 2021
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 1981 cars and highlighted areas where the MG MGB is unusually good or bad.

  • 12% fail on Lamps, reflectors and electrical equipment
    • 3.6% fail on Headlamp aim
      • 3.0% fail on Headlamp aim
      • 0.60% fail on Headlamp aim not tested
    • 3.6% fail on Front and rear fog lamps
      • 3.6% fail on Rear fog lamp
        • 3.6% fail on Rear fog lamp
    • 3.4% fail on Direction indicators
      • 3.4% fail on Flashing type
        • 1.8% fail on Individual direction indicators
        • 1.2% fail on All direction indicators
        • 0.40% fail on Switch
    • 2.6% fail on Stop lamp
    • 1.4% fail on Headlamps
      • 1.4% fail on Headlamp
    • 1.0% fail on Electrical equipment
      • 0.60% fail on Horn
      • 0.20% fail on Electrical wiring
      • 0.20% fail on Battery(ies)
    • 0.80% fail on Registration plate lamp(s)
    • 0.20% fail on Mandatory tell-tales
      • 0.20% fail on Rear fog lamp tell-tale
  • 10% fail on Brakes
    • 8.8% fail on Brake performance
      • 5.6% fail on Service brake performance
        • 5.6% fail on Rbt
          • 4.2% fail on Service brake performance
          • 1.8% fail on Service brake imbalance
      • 3.2% fail on Service Brake Efficiency (sp)
        • 3.2% fail on Rbt (sp)
          • 3.2% fail on Service brake imbalance
      • 2.0% fail on Parking brake efficiency (sp)
        • 2.0% fail on Rbt (sp)
      • 1.2% fail on Parking brake performance
        • 1.2% fail on Rbt
          • 1.2% fail on Parking brake performance
      • 0.60% fail on Brake performance not tested
    • 0.60% fail on Parking brake control
      • 0.60% fail on Lever
    • 0.60% fail on Flexible brake hoses
    • 0.40% fail on Rigid brake pipes
    • 0.20% fail on Service brake pedal or hand lever
      • 0.20% fail on Pedal
    • 0.20% fail on Hydraulic systems
      • 0.20% fail on Valves
    • 0.20% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.20% fail on Hydraulic brake cylinder
    • 0.20% fail on Other components and prescribed areas
      • 0.20% fail on Other components
  • 9.8% fail on Noise, emissions and leaks (65% worse than other 1981 cars)
    • 9.8% fail on Exhaust emissions (72% worse than other 1981 cars)
      • 9.6% fail on Spark ignition (78% worse than other 1981 cars)
        • 9.0% fail on Non catalyst emissions (85% worse than other 1981 cars)
        • 0.40% fail on Emissions not tested
        • 0.20% fail on Catalyst emissions
      • 0.20% fail on Compression ignition
        • 0.20% fail on On or after 01/07/2008
    • 0.20% fail on Fluid leaks
      • 0.20% fail on Engine oil leaks
  • 7.4% fail on Visibility
    • 5.6% fail on Washers
    • 2.4% fail on Wipers
  • 5.0% fail on Suspension
    • 2.0% fail on Component mounting prescribed areas
    • 1.0% fail on Wheel bearings
    • 1.0% fail on Springs
      • 0.60% fail on Spring mounting prescribed areas
      • 0.40% fail on Leaf springs
        • 0.40% fail on Anchor pins and bushes
    • 0.40% fail on Axles
      • 0.20% fail on Swivel joints/housing
      • 0.20% fail on Swivel pins and bushes
    • 0.40% fail on Shock absorbers
    • 0.40% fail on Suspension arms
      • 0.20% fail on Suspension arm
      • 0.20% fail on Pins and bushes
    • 0.40% fail on Anti-roll bars
      • 0.20% fail on Pins and bushes
      • 0.20% fail on Linkage
      • 0.20% fail on Linkage pins and bushes
    • 0.40% fail on Other suspension component
      • 0.20% fail on Other suspension component
      • 0.20% fail on Pins and bushes
  • 3.4% fail on Body, chassis, structure
    • 1.0% fail on Exhaust system
    • 0.80% fail on Integral vehicle structure
      • 0.80% fail on Integral vehicle structure condition
    • 0.60% fail on Chassis
      • 0.60% fail on Chassis condition
    • 0.20% fail on Fuel system
      • 0.20% fail on Pipe
    • 0.20% fail on Engine mounting
      • 0.20% fail on Engine mounting condition
    • 0.20% fail on Doors
      • 0.20% fail on Front passenger's door
        • 0.20% fail on Door condition
    • 0.20% fail on Floor
    • 0.20% fail on Seats
      • 0.20% fail on Driver's seat
  • 3.0% fail on Steering
    • 1.6% fail on Steering gear
      • 1.6% fail on Steering rack
    • 1.6% fail on Steering linkage components
      • 1.6% fail on Track rod end
  • 0.80% fail on Identification of the vehicle
    • 0.80% fail on Registration plates
    • 0.20% fail on Vehicle Identification Number
  • 0.20% fail on Seat belts and supplementary restraint systems
    • 0.20% fail on Seat belts
      • 0.20% fail on Prescribed areas
  • 0.20% fail on Road Wheels
    • 0.20% fail on Condition
  • 0.20% fail on Tyres
    • 0.20% fail on Condition

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