Porsche 911 MOT Results

Registered in 1984
72.8% pass rate
from 217 tests in 2017
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 1984 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 20% fail on Lamps, Reflectors and Electrical Equipment
    • 7.8% fail on Headlamp aim
    • 5.5% fail on Rear fog lamp
      • 5.1% fail on Fog lamp
      • 0.92% fail on Switch
    • 4.6% fail on Direction indicators
      • 4.6% fail on Flashing type
        • 2.8% fail on Side repeaters (3 times worse than other 1984 cars)
        • 2.3% fail on Individual lamps
        • 0.46% fail on All direction indicators
    • 4.1% fail on Headlamps
      • 3.2% fail on Headlamp
      • 0.46% fail on Headlamp defects which don't require an aim check on retest
        • 0.46% fail on Headlamp cleaning device
      • 0.46% fail on Headlamp defects which do require an aim check on retest
        • 0.46% fail on Main beam 'tell-tale'
      • 0.46% fail on Dipswitch
    • 2.3% fail on Position lamps
      • 2.3% fail on Front lamps
      • 0.46% fail on Rear lamps
    • 2.3% fail on Registration plate lamp
    • 1.4% fail on Stop lamp
    • 1.4% fail on Horn
    • 0.92% fail on Battery
  • 8.3% fail on Brakes
    • 5.1% fail on Brake performance
      • 2.3% fail on Rear wheels
      • 1.8% fail on Front wheels
      • 0.92% fail on Parking brake performance
      • 0.46% fail on Service brake performance
    • 1.8% fail on Hydraulic systems
      • 1.4% fail on Components
        • 1.4% fail on Hoses
      • 0.46% fail on Leaks
    • 0.92% fail on Parking brake
      • 0.92% fail on Condition
    • 0.46% fail on Service brake control components
      • 0.46% fail on Pedal
        • 0.46% fail on Condition
    • 0.46% fail on Air and vacuum systems
      • 0.46% fail on Components
        • 0.46% fail on Servos
    • 0.46% fail on Restricted movement
  • 8.3% fail on Driver's view of the road
    • 6.9% fail on Washers
    • 0.92% fail on Wipers
    • 0.46% fail on Mirrors
  • 2.8% fail on Steering
    • 1.4% fail on Steering control
      • 1.4% fail on Steering column (7 times worse than other 1984 cars)
    • 1.4% fail on Steering system
      • 0.46% fail on Steering rack
      • 0.46% fail on Track rod end
      • 0.46% fail on Other components
        • 0.46% fail on Steering component
  • 2.8% fail on Exhaust, Fuel and Emissions (66% better than other 1984 cars)
    • 1.4% fail on Emissions
    • 0.92% fail on Exhaust system
    • 0.46% fail on Fuel system
      • 0.46% fail on System
  • 2.3% fail on Body, Structure and General Items
    • 0.92% fail on Doors
      • 0.46% fail on Drivers
      • 0.46% fail on Passengers front
    • 0.92% fail on Seats
      • 0.92% fail on Passengers
    • 0.46% fail on Vehicle structure
      • 0.46% fail on Chassis
  • 1.8% fail on Suspension (83% better than other 1984 cars)
    • 0.46% fail on Suspension arms
      • 0.46% fail on Pins/bushes/ball joints
    • 0.46% fail on Anti-roll bars
      • 0.46% fail on Pins/bushes/ball joints
    • 0.46% fail on Shock absorbers
      • 0.46% fail on Condition
    • 0.46% fail on Drive shafts
      • 0.46% fail on Any drive shaft which is part of the suspension
        • 0.46% fail on Drive shafts
  • 1.8% fail on Seat Belts and Supplementary Restraint Systems
    • 1.8% fail on Seat belts
      • 0.92% fail on Condition
      • 0.92% fail on Prescribed areas
  • 1.8% fail on Registration plates and VIN
    • 1.8% fail on Registration plate
  • 0.46% fail on Tyres
    • 0.46% fail on Condition

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