Porsche 928 MOT Results

Registered in 1988
74.2% pass rate
from 97 tests in 2021
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.

  • 12% fail on Lamps, reflectors and electrical equipment
    • 6.2% fail on Headlamp aim
      • 6.2% fail on Headlamp aim
    • 4.1% fail on Front and rear fog lamps
      • 4.1% fail on Rear fog lamp
        • 4.1% fail on Rear fog lamp
    • 1.0% fail on Headlamps
      • 1.0% fail on Headlamp
    • 1.0% fail on Hazard warning
      • 1.0% fail on Switch
    • 1.0% fail on Registration plate lamp(s)
    • 1.0% fail on Mandatory tell-tales
      • 1.0% fail on Rear fog lamp tell-tale
    • 1.0% fail on Electrical equipment
      • 1.0% fail on Horn
  • 8.2% fail on Noise, emissions and leaks
    • 8.2% fail on Exhaust emissions
      • 8.2% fail on Spark ignition
        • 7.2% fail on Non catalyst emissions
        • 1.0% fail on Catalyst emissions
        • 1.0% fail on Emissions not tested
  • 6.2% fail on Body, chassis, structure
    • 4.1% fail on Transmission
      • 4.1% fail on Drive shafts
        • 4.1% fail on Joints
    • 1.0% fail on Integral vehicle structure
      • 1.0% fail on Integral vehicle structure condition
    • 1.0% fail on Exhaust system
    • 1.0% fail on Seats
      • 1.0% fail on Passenger's seat
    • 1.0% fail on Boot lid
      • 1.0% fail on Boot lid condition
  • 5.2% fail on Brakes
    • 3.1% fail on Brake performance
      • 3.1% fail on Parking brake efficiency (sp)
        • 3.1% fail on Rbt (sp)
    • 2.1% fail on Parking brake control (5 times worse than other 1988 cars)
      • 2.1% fail on Lever (5 times worse than other 1988 cars)
  • 5.2% fail on Visibility
    • 4.1% fail on Washers
    • 2.1% fail on Wipers
  • 5.2% fail on Suspension
    • 3.1% fail on Component mounting prescribed areas
    • 1.0% fail on Springs
      • 1.0% fail on Coil springs
        • 1.0% fail on Coil spring
    • 1.0% fail on Shock absorbers
    • 1.0% fail on Suspension arms
      • 1.0% fail on Pins and bushes
    • 1.0% fail on Anti-roll bars
      • 1.0% fail on Linkage pins and bushes
  • 4.1% fail on Steering
    • 2.1% fail on Steering gear
      • 1.0% fail on Operation
      • 1.0% fail on Steering rack
    • 1.0% fail on Steering linkage components
      • 1.0% fail on Drag link end
    • 1.0% fail on Steering play
      • 1.0% fail on Steering rack
  • 1.0% fail on Seat belts and supplementary restraint systems
    • 1.0% fail on Seat belts
      • 1.0% fail on Condition

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