Porsche 911 MOT Results

Registered in 1990
79.5% pass rate
from 662 tests in 2017
(45% better than other 1990 cars)
Pass rate by mileage
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 1990 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 12% fail on Lamps, Reflectors and Electrical Equipment (40% better than other 1990 cars)
    • 4.8% fail on Headlamp aim
    • 4.2% fail on Rear fog lamp
      • 3.9% fail on Fog lamp
      • 0.60% fail on Tell tale
      • 0.60% fail on Switch
    • 2.1% fail on Position lamps (51% better than other 1990 cars)
      • 1.4% fail on Rear lamps
      • 1.2% fail on Front lamps
    • 2.1% fail on Registration plate lamp
    • 2.0% fail on Stop lamp
    • 1.8% fail on Direction indicators (50% better than other 1990 cars)
      • 1.8% fail on Flashing type (50% better than other 1990 cars)
        • 1.2% fail on Individual lamps
        • 0.60% fail on Side repeaters
    • 0.76% fail on Horn
    • 0.30% fail on Electrical wiring
    • 0.30% fail on Headlamps (92% better than other 1990 cars)
      • 0.30% fail on Headlamp (91% better than other 1990 cars)
    • 0.15% fail on Battery
  • 4.7% fail on Driver's view of the road (39% better than other 1990 cars)
    • 3.3% fail on Washers
    • 1.5% fail on Wipers (62% better than other 1990 cars)
    • 0.30% fail on Bonnet
  • 3.9% fail on Brakes (72% better than other 1990 cars)
    • 1.7% fail on Brake performance (82% better than other 1990 cars)
      • 0.91% fail on Parking brake performance (78% better than other 1990 cars)
      • 0.60% fail on Front wheels (83% better than other 1990 cars)
      • 0.30% fail on Rear wheels (93% better than other 1990 cars)
      • 0.15% fail on Service brake performance
    • 0.91% fail on Hydraulic systems (82% better than other 1990 cars)
      • 0.76% fail on Components (83% better than other 1990 cars)
        • 0.60% fail on Hoses
        • 0.15% fail on Pipes
      • 0.15% fail on Brake fluid warning lamp
    • 0.76% fail on ABS
    • 0.30% fail on Hub components (80% better than other 1990 cars)
      • 0.30% fail on Brake discs
    • 0.15% fail on Parking brake
      • 0.15% fail on Condition
    • 0.15% fail on Service brake control components
      • 0.15% fail on Pedal
        • 0.15% fail on Anti-slip
  • 3.6% fail on Suspension (74% better than other 1990 cars)
    • 2.6% fail on Anti-roll bars (99% worse than other 1990 cars)
      • 2.1% fail on Linkage pins/bushes/ball joints (2 times worse than other 1990 cars)
      • 0.45% fail on Pins/bushes/ball joints
    • 0.76% fail on Drive shafts (66% better than other 1990 cars)
      • 0.60% fail on Front drive shafts (71% better than other 1990 cars)
        • 0.60% fail on Constant velocity joints (71% better than other 1990 cars)
      • 0.15% fail on Any drive shaft which is part of the suspension
        • 0.15% fail on Drive shafts
    • 0.30% fail on Shock absorbers
      • 0.30% fail on Condition
    • 0.15% fail on Coil springs
      • 0.15% fail on Location
    • 0.15% fail on Suspension arms
      • 0.15% fail on Pins/bushes/ball joints
    • 0.15% fail on Wheel bearings
      • 0.15% fail on Front
  • 2.0% fail on Exhaust, Fuel and Emissions (76% better than other 1990 cars)
    • 1.1% fail on Emissions (69% better than other 1990 cars)
    • 0.76% fail on Fuel system
      • 0.45% fail on Cap
      • 0.15% fail on Pipe
      • 0.15% fail on System
    • 0.45% fail on Emissions not tested
  • 1.5% fail on Steering (71% better than other 1990 cars)
    • 1.1% fail on Steering system (74% better than other 1990 cars)
      • 0.91% fail on Steering rack
      • 0.15% fail on Track rod end
    • 0.30% fail on Power steering
      • 0.15% fail on Pipes and hoses
      • 0.15% fail on Pump
    • 0.15% fail on Steering operation
  • 1.5% fail on Tyres (59% better than other 1990 cars)
    • 0.91% fail on Tread depth
    • 0.60% fail on Condition
  • 1.1% fail on Body, Structure and General Items (78% better than other 1990 cars)
    • 0.60% fail on Seats
      • 0.45% fail on Drivers
      • 0.15% fail on Passengers
    • 0.30% fail on Body condition (86% better than other 1990 cars)
    • 0.15% fail on Doors
      • 0.15% fail on Drivers
  • 0.60% fail on Seat Belts and Supplementary Restraint Systems (83% better than other 1990 cars)
    • 0.60% fail on Seat belts (83% better than other 1990 cars)
      • 0.30% fail on Prescribed areas (89% better than other 1990 cars)
      • 0.15% fail on Condition
      • 0.15% fail on Attachment
  • 0.60% fail on Registration plates and VIN
    • 0.60% fail on Registration plate
  • 0.15% fail on Road Wheels
    • 0.15% fail on Attachment

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