Porsche 928 MOT Results

Registered in 1991
74.4% pass rate
from 82 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 1991 cars and highlighted areas where the Porsche 928 is unusually good or bad.

  • 16% fail on Lamps, reflectors and electrical equipment
    • 11% fail on Headlamp aim (180% worse than other 1991 cars)
      • 11% fail on Headlamp aim (190% worse than other 1991 cars)
    • 6.1% fail on Front and rear fog lamps
      • 6.1% fail on Rear fog lamp
        • 6.1% fail on Rear fog lamp
    • 4.9% fail on Headlamps
      • 3.7% fail on Headlamp
      • 1.2% fail on Matched pair
    • 3.7% fail on Position lamps
      • 3.7% fail on Position lamp
    • 2.4% fail on Stop lamp
    • 1.2% fail on Direction indicators
      • 1.2% fail on Flashing type
        • 1.2% fail on Side repeaters
  • 8.5% fail on Suspension
    • 3.7% fail on Suspension arms
      • 1.2% fail on Attachment bracket and mounting
      • 1.2% fail on Pins and bushes
      • 1.2% fail on Ball joint
    • 2.4% fail on Springs
      • 2.4% fail on Coil springs
        • 2.4% fail on Coil spring
    • 2.4% fail on Component mounting prescribed areas
    • 1.2% fail on Wheel bearings
    • 1.2% fail on Shock absorbers
    • 1.2% fail on Suspension rods
      • 1.2% fail on Suspension rod
    • 1.2% fail on Anti-roll bars
      • 1.2% fail on Linkage pins and bushes
  • 6.1% fail on Steering
    • 3.7% fail on Steering gear
      • 3.7% fail on Steering rack
    • 2.4% fail on Steering linkage components
      • 2.4% fail on Track rod end
    • 1.2% fail on Power steering
      • 1.2% fail on Pipes and hoses
  • 6.1% fail on Body, chassis, structure
    • 3.7% fail on Fuel system (3 times worse than other 1991 cars)
      • 2.4% fail on Pipe (8 times worse than other 1991 cars)
      • 1.2% fail on Fuel cap/sealing device
    • 1.2% fail on Chassis
      • 1.2% fail on Chassis condition
    • 1.2% fail on Doors
      • 1.2% fail on Other passenger's door
        • 1.2% fail on Door condition
  • 3.7% fail on Brakes
    • 3.7% fail on Brake performance
      • 2.4% fail on Service brake performance
        • 2.4% fail on Rbt
          • 2.4% fail on Service brake imbalance
      • 2.4% fail on Parking brake efficiency (sp)
        • 2.4% fail on Rbt (sp)
      • 1.2% fail on Service Brake Efficiency (sp)
        • 1.2% fail on Rbt (sp)
          • 1.2% fail on Service brake performance
          • 1.2% fail on Service brake imbalance
    • 1.2% fail on Service brake pedal or hand lever
      • 1.2% fail on Hand lever
  • 3.7% fail on Visibility
    • 3.7% fail on Wipers
    • 3.7% fail on Washers
  • 2.4% fail on Noise, emissions and leaks
    • 1.2% fail on Exhaust emissions
      • 1.2% fail on Spark ignition
        • 1.2% fail on Catalyst emissions
    • 1.2% fail on Fluid leaks
      • 1.2% fail on Engine oil leaks
      • 1.2% fail on Hydraulic fluid leaks
  • 2.4% fail on Tyres
    • 1.2% fail on Condition
    • 1.2% fail on Tread depth
  • 1.2% fail on Identification of the vehicle
    • 1.2% fail on Registration plates
  • 1.2% fail on Seat belts and supplementary restraint systems
    • 1.2% fail on Seat belts
      • 1.2% fail on Prescribed areas
  • 1.2% fail on Road Wheels
    • 1.2% fail on Attachment

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