Porsche 911 MOT Results

Registered in 1988
75.2% pass rate
from 492 tests in 2017
(29% better than other 1988 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 1988 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 13% fail on Lamps, Reflectors and Electrical Equipment (35% better than other 1988 cars)
    • 5.5% fail on Headlamp aim
    • 3.7% fail on Rear fog lamp
      • 3.3% fail on Fog lamp
      • 0.81% fail on Tell tale
      • 0.20% fail on Switch
    • 2.0% fail on Position lamps
      • 1.2% fail on Front lamps
      • 0.81% fail on Rear lamps
    • 1.8% fail on Direction indicators (55% better than other 1988 cars)
      • 1.8% fail on Flashing type (55% better than other 1988 cars)
        • 1.0% fail on Individual lamps
        • 0.41% fail on All direction indicators
        • 0.41% fail on Side repeaters
    • 1.4% fail on Registration plate lamp (60% better than other 1988 cars)
    • 1.2% fail on Stop lamp
    • 1.0% fail on Horn
    • 0.61% fail on Headlamps (82% better than other 1988 cars)
      • 0.41% fail on Headlamp (87% better than other 1988 cars)
      • 0.41% fail on Dipswitch (8 times worse than other 1988 cars)
    • 0.61% fail on Hazard warning
      • 0.41% fail on Lamp
      • 0.20% fail on Switch
    • 0.41% fail on Battery
  • 7.9% fail on Brakes (40% better than other 1988 cars)
    • 5.5% fail on Brake performance (38% better than other 1988 cars)
      • 2.4% fail on Front wheels
      • 2.2% fail on Rear wheels
      • 0.81% fail on Service brake performance
      • 0.61% fail on Parking brake performance (82% better than other 1988 cars)
      • 0.20% fail on Brake imbalance
      • 0.20% fail on Brake performance not tested
    • 1.8% fail on Hydraulic systems (59% better than other 1988 cars)
      • 1.4% fail on Components (62% better than other 1988 cars)
        • 1.4% fail on Hoses
      • 0.61% fail on Leaks
    • 0.61% fail on Restricted movement
    • 0.20% fail on Hub components
      • 0.20% fail on Brake pads
  • 6.5% fail on Driver's view of the road
    • 5.3% fail on Washers
    • 1.4% fail on Wipers (64% better than other 1988 cars)
    • 0.20% fail on Windscreen
    • 0.20% fail on Mirrors
  • 5.3% fail on Suspension (60% better than other 1988 cars)
    • 2.0% fail on Anti-roll bars
      • 0.81% fail on Attachment (3 times worse than other 1988 cars)
      • 0.61% fail on Linkage condition (4 times worse than other 1988 cars)
      • 0.41% fail on Linkage pins/bushes/ball joints
      • 0.20% fail on Condition
    • 1.4% fail on Wheel bearings
      • 0.81% fail on Front
      • 0.61% fail on Rear
    • 1.4% fail on Drive shafts
      • 1.2% fail on Any drive shaft which is part of the suspension (7 times worse than other 1988 cars)
        • 1.2% fail on Drive shafts (8 times worse than other 1988 cars)
      • 0.20% fail on Front drive shafts
        • 0.20% fail on Constant velocity joints
    • 0.61% fail on Prescribed areas (89% better than other 1988 cars)
      • 0.61% fail on Component mounting (86% better than other 1988 cars)
    • 0.20% fail on Suspension arms
      • 0.20% fail on Condition
  • 3.0% fail on Exhaust, Fuel and Emissions (64% better than other 1988 cars)
    • 1.8% fail on Emissions (55% better than other 1988 cars)
    • 0.81% fail on Fuel system
      • 0.41% fail on Pipe
      • 0.20% fail on Tank
      • 0.20% fail on System
    • 0.41% fail on Exhaust system (88% better than other 1988 cars)
    • 0.20% fail on Emissions not tested
  • 1.6% fail on Tyres
    • 1.0% fail on Tread depth
    • 0.81% fail on Condition
  • 1.2% fail on Registration plates and VIN
    • 1.2% fail on Registration plate
  • 1.0% fail on Body, Structure and General Items (79% better than other 1988 cars)
    • 0.81% fail on Doors
      • 0.81% fail on Passengers front
    • 0.20% fail on Body condition
  • 0.61% fail on Steering (88% better than other 1988 cars)
    • 0.41% fail on Steering control
      • 0.41% fail on Steering column
    • 0.20% fail on Steering system
      • 0.20% fail on Steering rack
      • 0.20% fail on Ball joint
  • 0.41% fail on Seat Belts and Supplementary Restraint Systems (88% better than other 1988 cars)
    • 0.41% fail on Seat belts (88% better than other 1988 cars)
      • 0.20% fail on Condition
      • 0.20% fail on Prescribed areas

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