Porsche 928 MOT Results

Registered in 1988
74.0% pass rate
from 123 tests in 2017
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 1988 cars and highlighted areas where the Porsche 928 is unusually good or bad.

  • 15% fail on Lamps, Reflectors and Electrical Equipment
    • 5.7% fail on Stop lamp
    • 4.9% fail on Headlamp aim
    • 4.1% fail on Headlamps
      • 3.3% fail on Headlamp
      • 1.6% fail on Headlamp defects which don't require an aim check on retest
        • 1.6% fail on Main beam 'tell-tale' (5 times worse than other 1988 cars)
        • 0.81% fail on Headlamp cleaning device
    • 4.1% fail on Direction indicators
      • 4.1% fail on Flashing type
        • 3.3% fail on Side repeaters
        • 0.81% fail on Individual lamps
    • 3.3% fail on Position lamps
      • 1.6% fail on Front lamps
      • 1.6% fail on Rear lamps
    • 3.3% fail on Rear fog lamp
      • 3.3% fail on Fog lamp
      • 0.81% fail on Tell tale
    • 1.6% fail on Registration plate lamp
    • 0.81% fail on Horn
    • 0.81% fail on Headlamp aim not tested
  • 9.8% fail on Driver's view of the road
    • 7.3% fail on Washers
    • 3.3% fail on Wipers
  • 8.1% fail on Suspension
    • 3.3% fail on Drive shafts
      • 3.3% fail on Any drive shaft which is part of the suspension (22 times worse than other 1988 cars)
        • 3.3% fail on Drive shafts (24 times worse than other 1988 cars)
    • 1.6% fail on Wheel bearings
      • 1.6% fail on Front
    • 0.81% fail on Suspension arms
      • 0.81% fail on Pins/bushes/ball joints
    • 0.81% fail on Anti-roll bars
      • 0.81% fail on Condition
    • 0.81% fail on Front suspension joints
    • 0.81% fail on Shock absorbers
      • 0.81% fail on Condition
    • 0.81% fail on Prescribed areas
      • 0.81% fail on Component mounting
  • 5.7% fail on Tyres
    • 4.1% fail on Condition
    • 1.6% fail on Tread depth
  • 4.1% fail on Brakes (69% better than other 1988 cars)
    • 2.4% fail on Brake performance (72% better than other 1988 cars)
      • 1.6% fail on Parking brake performance
      • 0.81% fail on Brake imbalance
      • 0.81% fail on Front wheels
      • 0.81% fail on Rear wheels
    • 0.81% fail on Parking brake
      • 0.81% fail on Condition
    • 0.81% fail on Hydraulic systems
      • 0.81% fail on Components
        • 0.81% fail on Hoses
    • 0.81% fail on Hub components
      • 0.81% fail on Brake calipers
  • 2.4% fail on Steering
    • 2.4% fail on Steering system
      • 0.81% fail on Steering rack
      • 0.81% fail on Ball joint
      • 0.81% fail on Track rod end
  • 2.4% fail on Exhaust, Fuel and Emissions
    • 2.4% fail on Emissions
  • 0.81% fail on Seat Belts and Supplementary Restraint Systems
    • 0.81% fail on Seat belts
      • 0.81% fail on Prescribed areas
  • 0.81% fail on Registration plates and VIN
    • 0.81% fail on Registration plate

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