Porsche 928 MOT Results

Registered in 1987
69.7% pass rate
from 76 tests in 2020
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 1987 cars and highlighted areas where the Porsche 928 is unusually good or bad.

  • 13% fail on Lamps, reflectors and electrical equipment
    • 5.3% fail on Headlamp aim
      • 5.3% fail on Headlamp aim
    • 3.9% fail on Direction indicators
      • 3.9% fail on Flashing type
        • 3.9% fail on Side repeaters
    • 3.9% fail on Front and rear fog lamps
      • 3.9% fail on Rear fog lamp
        • 2.6% fail on Rear fog lamp
        • 1.3% fail on Switch
    • 2.6% fail on Position lamps
      • 2.6% fail on Position lamp
    • 2.6% fail on Electrical equipment
      • 2.6% fail on Horn
    • 1.3% fail on Stop lamp
    • 1.3% fail on Registration plate lamp(s)
  • 9.2% fail on Brakes
    • 3.9% fail on Brake performance
      • 2.6% fail on Service brake performance
        • 2.6% fail on Rbt
          • 2.6% fail on Service brake performance
      • 2.6% fail on Parking brake efficiency (sp)
        • 2.6% fail on Rbt (sp)
      • 1.3% fail on Service Brake Efficiency (sp)
        • 1.3% fail on Rbt (sp)
          • 1.3% fail on Service brake imbalance
    • 3.9% fail on ABS / EBS / ESC (15 times worse than other 1987 cars)
      • 2.6% fail on Anti-lock braking system (10 times worse than other 1987 cars)
      • 1.3% fail on Electronic stability control
    • 1.3% fail on Flexible brake hoses
    • 1.3% fail on Mechanical brake components
      • 1.3% fail on Brake linings and pads
        • 1.3% fail on Brake pads
  • 7.9% fail on Body, chassis, structure
    • 3.9% fail on Transmission
      • 3.9% fail on Drive shafts
        • 3.9% fail on Joints
    • 1.3% fail on Integral vehicle structure
      • 1.3% fail on Integral vehicle structure condition
    • 1.3% fail on Exhaust system
    • 1.3% fail on Fuel system
      • 1.3% fail on Pipe
  • 6.6% fail on Visibility
    • 5.3% fail on Washers
    • 2.6% fail on Wipers
  • 5.3% fail on Suspension
    • 3.9% fail on Suspension arms
      • 2.6% fail on Pins and bushes
      • 1.3% fail on Ball joint
    • 1.3% fail on Wheel bearings
    • 1.3% fail on Shock absorbers
  • 3.9% fail on Noise, emissions and leaks
    • 3.9% fail on Exhaust emissions
      • 3.9% fail on Spark ignition
        • 2.6% fail on Non catalyst emissions
        • 1.3% fail on Catalyst emissions
  • 2.6% fail on Steering
    • 2.6% fail on Steering gear
      • 2.6% fail on Steering rack
  • 2.6% fail on Tyres
    • 1.3% fail on Condition
    • 1.3% fail on Tread depth
  • 1.3% fail on Identification of the vehicle
    • 1.3% fail on Registration plates
  • 1.3% fail on Seat belts and supplementary restraint systems
    • 1.3% fail on Seat belts
      • 1.3% fail on Condition
  • 1.3% fail on Road Wheels
    • 1.3% fail on Attachment

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