MG MGB MOT Results

Registered in 1980
71.4% pass rate
from 465 tests in 2020
(12% worse than other 1980 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 1980 cars and highlighted areas where the MG MGB is unusually good or bad.

  • 11% fail on Lamps, reflectors and electrical equipment (2.0% better than other 1980 cars)
    • 3.7% fail on Front and rear fog lamps (58% worse than other 1980 cars)
      • 3.7% fail on Rear fog lamp (58% worse than other 1980 cars)
        • 3.2% fail on Rear fog lamp (48% worse than other 1980 cars)
        • 0.43% fail on Switch (75% worse than other 1980 cars)
    • 2.8% fail on Stop lamp (12% worse than other 1980 cars)
    • 2.2% fail on Direction indicators (5.3% worse than other 1980 cars)
      • 2.2% fail on Flashing type (5.3% worse than other 1980 cars)
        • 1.3% fail on All direction indicators (39% worse than other 1980 cars)
        • 0.86% fail on Individual direction indicators (23% better than other 1980 cars)
    • 1.9% fail on Electrical equipment (7.7% worse than other 1980 cars)
      • 1.7% fail on Horn (37% worse than other 1980 cars)
      • 0.22% fail on Battery(ies)
    • 1.7% fail on Headlamps (22% better than other 1980 cars)
      • 1.7% fail on Headlamp (21% better than other 1980 cars)
    • 1.3% fail on Headlamp aim (59% better than other 1980 cars)
      • 1.3% fail on Headlamp aim (55% better than other 1980 cars)
    • 0.86% fail on Registration plate lamp(s) (31% better than other 1980 cars)
    • 0.22% fail on Position lamps
      • 0.22% fail on Position lamp
  • 11% fail on Brakes (9.3% worse than other 1980 cars)
    • 8.2% fail on Brake performance (6.4% worse than other 1980 cars)
      • 4.7% fail on Service brake performance (19% worse than other 1980 cars)
        • 4.7% fail on Rbt (22% worse than other 1980 cars)
          • 4.3% fail on Service brake performance (35% worse than other 1980 cars)
          • 1.3% fail on Service brake imbalance (21% worse than other 1980 cars)
      • 3.7% fail on Service Brake Efficiency (sp) (4.0% worse than other 1980 cars)
        • 3.7% fail on Rbt (sp) (6.5% worse than other 1980 cars)
          • 3.2% fail on Service brake imbalance (25% worse than other 1980 cars)
          • 1.1% fail on Service brake performance (28% better than other 1980 cars)
      • 2.8% fail on Parking brake efficiency (sp) (4.1% better than other 1980 cars)
        • 2.4% fail on Rbt (sp) (12% better than other 1980 cars)
        • 0.43% fail on Decelerometer (sp) (97% worse than other 1980 cars)
      • 1.9% fail on Parking brake performance (45% worse than other 1980 cars)
        • 1.9% fail on Rbt (48% worse than other 1980 cars)
          • 1.3% fail on Parking brake performance (28% worse than other 1980 cars)
          • 0.65% fail on Parking (secondary brake performance) (120% worse than other 1980 cars)
    • 1.1% fail on Parking brake control (160% worse than other 1980 cars)
      • 1.1% fail on Lever (160% worse than other 1980 cars)
    • 1.1% fail on Flexible brake hoses (130% worse than other 1980 cars)
    • 0.86% fail on Service brake pedal or hand lever (7.1% better than other 1980 cars)
      • 0.65% fail on Pedal (12% better than other 1980 cars)
      • 0.22% fail on Hand lever
    • 0.65% fail on Mechanical brake components (7.7% worse than other 1980 cars)
      • 0.22% fail on Brake linings and pads
        • 0.22% fail on Brake pads
      • 0.22% fail on Brake discs and drums
        • 0.22% fail on Brake drums
      • 0.22% fail on Brake cables, rods, levers and linkages
        • 0.22% fail on Lever
    • 0.43% fail on Rigid brake pipes (47% better than other 1980 cars)
    • 0.22% fail on Hydraulic systems
      • 0.22% fail on Brake fluid
    • 0.22% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.22% fail on Hydraulic brake cylinder
    • 0.22% fail on Other components and prescribed areas
      • 0.22% fail on Other components
  • 8.4% fail on Noise, emissions and leaks (21% worse than other 1980 cars)
    • 8.2% fail on Exhaust emissions (26% worse than other 1980 cars)
      • 8.2% fail on Spark ignition (28% worse than other 1980 cars)
        • 7.5% fail on Non catalyst emissions (29% worse than other 1980 cars)
        • 0.43% fail on Emissions not tested (21% worse than other 1980 cars)
        • 0.22% fail on Catalyst emissions
    • 0.43% fail on Fluid leaks (25% better than other 1980 cars)
      • 0.22% fail on Engine oil leaks
      • 0.22% fail on Transmission oil leaks
      • 0.22% fail on Other leaks
  • 7.5% fail on Visibility (14% worse than other 1980 cars)
    • 5.4% fail on Washers (13% worse than other 1980 cars)
    • 2.8% fail on Wipers (33% worse than other 1980 cars)
    • 0.22% fail on Bonnet
    • 0.22% fail on View to rear
      • 0.22% fail on Mirrors
  • 6.2% fail on Suspension (0.024% better than other 1980 cars)
    • 1.5% fail on Wheel bearings (49% worse than other 1980 cars)
    • 1.5% fail on Component mounting prescribed areas (38% better than other 1980 cars)
    • 1.3% fail on Springs (89% worse than other 1980 cars)
      • 0.65% fail on Leaf springs (58% worse than other 1980 cars)
        • 0.22% fail on Leaf spring
        • 0.22% fail on Spring saddle
        • 0.22% fail on Shackle pins and bushes
      • 0.43% fail on Spring mounting prescribed areas (97% worse than other 1980 cars)
      • 0.22% fail on Coil springs
        • 0.22% fail on Coil spring
    • 1.3% fail on Suspension arms (35% worse than other 1980 cars)
      • 0.86% fail on Pins and bushes (140% worse than other 1980 cars)
      • 0.22% fail on Suspension arm
      • 0.22% fail on Ball joint
    • 0.65% fail on Anti-roll bars (48% worse than other 1980 cars)
      • 0.43% fail on Pins and bushes (160% worse than other 1980 cars)
      • 0.22% fail on Linkage ball joint dust cover
    • 0.65% fail on Other suspension component (25% worse than other 1980 cars)
      • 0.65% fail on Pins and bushes (3 times worse than other 1980 cars)
    • 0.43% fail on Shock absorbers (12% better than other 1980 cars)
    • 0.22% fail on Axles
      • 0.22% fail on King pins
    • 0.22% fail on Suspension rods
      • 0.22% fail on Pins and bushes
    • 0.22% fail on Sub-frames
      • 0.22% fail on Sub-frame
  • 3.0% fail on Body, chassis, structure (39% better than other 1980 cars)
    • 1.3% fail on Exhaust system (14% better than other 1980 cars)
    • 0.65% fail on Fuel system (7.7% worse than other 1980 cars)
      • 0.22% fail on Tank
      • 0.22% fail on Hose
      • 0.22% fail on System
    • 0.43% fail on Integral vehicle structure (21% better than other 1980 cars)
      • 0.43% fail on Integral vehicle structure condition (21% better than other 1980 cars)
    • 0.22% fail on Chassis
      • 0.22% fail on Chassis condition
    • 0.22% fail on Floor
    • 0.22% fail on Seats
      • 0.22% fail on Driver's seat
  • 1.7% fail on Steering (56% better than other 1980 cars)
    • 1.1% fail on Steering gear (16% better than other 1980 cars)
      • 1.1% fail on Steering rack (8.2% better than other 1980 cars)
    • 0.86% fail on Steering linkage components (54% better than other 1980 cars)
      • 0.65% fail on Track rod end (44% better than other 1980 cars)
      • 0.22% fail on Ball joint
  • 0.86% fail on Seat belts and supplementary restraint systems (28% better than other 1980 cars)
    • 0.86% fail on Seat belts (28% better than other 1980 cars)
      • 0.43% fail on Prescribed areas (28% better than other 1980 cars)
      • 0.43% fail on Condition (5.3% worse than other 1980 cars)
  • 0.86% fail on Road Wheels (190% worse than other 1980 cars)
    • 0.86% fail on Attachment (190% worse than other 1980 cars)
  • 0.86% fail on Tyres (17% better than other 1980 cars)
    • 0.65% fail on Condition (3.0% worse than other 1980 cars)
    • 0.22% fail on Tread depth
  • 0.43% fail on Identification of the vehicle (21% better than other 1980 cars)
    • 0.22% fail on Registration plates
    • 0.22% fail on Vehicle Identification Number

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