Porsche 928 MOT Results

Registered in 1986
79.3% pass rate
from 87 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 1986 cars and highlighted areas where the Porsche 928 is unusually good or bad.

  • 13% fail on Lamps, reflectors and electrical equipment
    • 5.7% fail on Front and rear fog lamps
      • 5.7% fail on Rear fog lamp
        • 5.7% fail on Rear fog lamp
    • 3.4% fail on Stop lamp
    • 2.3% fail on Headlamps
      • 2.3% fail on Headlamp
    • 2.3% fail on Headlamp aim
      • 2.3% fail on Headlamp aim
    • 2.3% fail on Direction indicators
      • 2.3% fail on Flashing type
        • 1.1% fail on All direction indicators
        • 1.1% fail on Side repeaters
    • 2.3% fail on Mandatory tell-tales
      • 1.1% fail on Main beam tell-tale
      • 1.1% fail on Rear fog lamp tell-tale
    • 1.1% fail on Hazard warning
      • 1.1% fail on Switch
    • 1.1% fail on Registration plate lamp(s)
    • 1.1% fail on Electrical equipment
      • 1.1% fail on Horn
  • 10% fail on Brakes
    • 5.7% fail on Brake performance
      • 3.4% fail on Service brake performance
        • 3.4% fail on Rbt
          • 2.3% fail on Service brake performance
          • 1.1% fail on Service brake imbalance
      • 3.4% fail on Service Brake Efficiency (sp)
        • 3.4% fail on Rbt (sp)
          • 2.3% fail on Service brake imbalance
          • 1.1% fail on Service brake performance
      • 1.1% fail on Parking brake performance
        • 1.1% fail on Rbt
          • 1.1% fail on Parking brake performance
    • 3.4% fail on Mechanical brake components
      • 1.1% fail on Brake linings and pads
        • 1.1% fail on Brake pads
      • 1.1% fail on Brake discs and drums
        • 1.1% fail on Brake discs
      • 1.1% fail on Brake cables, rods, levers and linkages
        • 1.1% fail on Cable
    • 2.3% fail on ABS / EBS / ESC (14 times worse than other 1986 cars)
      • 2.3% fail on Anti-lock braking system (14 times worse than other 1986 cars)
    • 1.1% fail on Parking brake control
      • 1.1% fail on Lever
  • 10% fail on Visibility
    • 9.2% fail on Washers
    • 2.3% fail on Wipers
  • 4.6% fail on Body, chassis, structure
    • 2.3% fail on Transmission
      • 2.3% fail on Drive shafts
        • 2.3% fail on Joints
    • 2.3% fail on Doors
      • 2.3% fail on Front passenger's door (5 times worse than other 1986 cars)
        • 2.3% fail on Door condition (5 times worse than other 1986 cars)
    • 1.1% fail on Seats
      • 1.1% fail on Driver's seat
  • 3.4% fail on Suspension
    • 1.1% fail on Wheel bearings
    • 1.1% fail on Shock absorbers
    • 1.1% fail on Suspension arms
      • 1.1% fail on Pins and bushes
    • 1.1% fail on Component mounting prescribed areas
  • 2.3% fail on Noise, emissions and leaks
    • 2.3% fail on Exhaust emissions
      • 2.3% fail on Spark ignition
        • 2.3% fail on Non catalyst emissions
  • 1.1% fail on Seat belts and supplementary restraint systems
    • 1.1% fail on Seat belts
      • 1.1% fail on Prescribed areas
  • 1.1% fail on Tyres
    • 1.1% fail on Condition

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