Porsche 911 MOT Results

Registered in 2004
79.7% pass rate
from 2,315 tests in 2017
(57% better than other 2004 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 2004 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 10.0% fail on Lamps, Reflectors and Electrical Equipment (61% better than other 2004 cars)
    • 3.5% fail on Position lamps (48% better than other 2004 cars)
      • 3.2% fail on Front lamps (41% better than other 2004 cars)
      • 0.35% fail on Rear lamps (78% better than other 2004 cars)
      • 0.043% fail on All position lamps
    • 3.2% fail on Headlamp aim (56% better than other 2004 cars)
    • 2.2% fail on Registration plate lamp (66% better than other 2004 cars)
    • 1.8% fail on Headlamps (63% better than other 2004 cars)
      • 0.91% fail on Headlamp (80% better than other 2004 cars)
      • 0.56% fail on Headlamp defects which don't require an aim check on retest (5 times worse than other 2004 cars)
        • 0.56% fail on Headlamp cleaning device (7 times worse than other 2004 cars)
      • 0.35% fail on Headlamp defects which do require an aim check on retest (4 times worse than other 2004 cars)
        • 0.17% fail on Headlamp levelling device (4 times worse than other 2004 cars)
        • 0.17% fail on Headlamp cleaning device (6 times worse than other 2004 cars)
    • 1.2% fail on Direction indicators (63% better than other 2004 cars)
      • 1.2% fail on Flashing type (63% better than other 2004 cars)
        • 0.52% fail on Individual lamps (73% better than other 2004 cars)
        • 0.48% fail on Side repeaters (54% better than other 2004 cars)
        • 0.22% fail on All direction indicators
        • 0.043% fail on Switch
    • 0.56% fail on Stop lamp (89% better than other 2004 cars)
    • 0.43% fail on Rear fog lamp (66% better than other 2004 cars)
      • 0.43% fail on Fog lamp (65% better than other 2004 cars)
    • 0.22% fail on Horn (65% better than other 2004 cars)
    • 0.13% fail on Battery (84% better than other 2004 cars)
    • 0.043% fail on Electrical wiring
    • 0.043% fail on Hazard warning
      • 0.043% fail on Switch
  • 4.5% fail on Tyres (50% better than other 2004 cars)
    • 2.5% fail on Tread depth (53% better than other 2004 cars)
    • 2.2% fail on Condition (44% better than other 2004 cars)
    • 0.13% fail on Valve stem
  • 4.3% fail on Brakes (71% better than other 2004 cars)
    • 3.0% fail on Hydraulic systems (42% better than other 2004 cars)
      • 2.7% fail on Components (44% better than other 2004 cars)
        • 2.7% fail on Pipes (28% better than other 2004 cars)
        • 0.043% fail on Servos
      • 0.30% fail on Leaks
      • 0.043% fail on Brake fluid warning lamp
      • 0.043% fail on Operation
    • 0.91% fail on Brake performance (88% better than other 2004 cars)
      • 0.35% fail on Parking brake performance (92% better than other 2004 cars)
      • 0.30% fail on Rear wheels (92% better than other 2004 cars)
      • 0.17% fail on Service brake performance
      • 0.13% fail on Brake imbalance (74% better than other 2004 cars)
      • 0.13% fail on Brake performance not tested
      • 0.043% fail on Front wheels
    • 0.69% fail on Hub components (80% better than other 2004 cars)
      • 0.43% fail on Brake discs (54% better than other 2004 cars)
      • 0.17% fail on Brake pads (93% better than other 2004 cars)
      • 0.086% fail on Brake calipers
      • 0.043% fail on Brake linings
    • 0.17% fail on ABS (82% better than other 2004 cars)
    • 0.043% fail on Electronic stability system
    • 0.043% fail on Parking brake
      • 0.043% fail on Condition
    • 0.043% fail on Service brake control components
      • 0.043% fail on Pedal
        • 0.043% fail on Condition
  • 3.4% fail on Suspension (83% better than other 2004 cars)
    • 1.2% fail on Drive shafts (68% better than other 2004 cars)
      • 1.1% fail on Front drive shafts (70% better than other 2004 cars)
        • 1.1% fail on Constant velocity joints (70% better than other 2004 cars)
      • 0.086% fail on Any drive shaft which is part of the suspension
        • 0.086% fail on Drive shafts
    • 1.1% fail on Coil springs (77% better than other 2004 cars)
      • 1.1% fail on Condition (76% better than other 2004 cars)
    • 0.65% fail on Anti-roll bars (89% better than other 2004 cars)
      • 0.39% fail on Linkage pins/bushes/ball joints (91% better than other 2004 cars)
      • 0.17% fail on Pins/bushes/ball joints (83% better than other 2004 cars)
      • 0.086% fail on Attachment
    • 0.35% fail on Shock absorbers (76% better than other 2004 cars)
      • 0.35% fail on Condition (76% better than other 2004 cars)
    • 0.22% fail on Front suspension joints (85% better than other 2004 cars)
    • 0.13% fail on Suspension arms (97% better than other 2004 cars)
      • 0.13% fail on Pins/bushes/ball joints (97% better than other 2004 cars)
    • 0.086% fail on Wheel bearings (95% better than other 2004 cars)
      • 0.086% fail on Front (88% better than other 2004 cars)
  • 3.2% fail on Exhaust, Fuel and Emissions (51% better than other 2004 cars)
    • 2.2% fail on Emissions
    • 0.86% fail on Exhaust system (77% better than other 2004 cars)
    • 0.60% fail on Fuel system
      • 0.56% fail on Cap (160% worse than other 2004 cars)
      • 0.043% fail on System
    • 0.13% fail on Emissions not tested (79% better than other 2004 cars)
  • 2.3% fail on Driver's view of the road (74% better than other 2004 cars)
    • 1.2% fail on Wipers (75% better than other 2004 cars)
    • 1.0% fail on Washers (70% better than other 2004 cars)
    • 0.13% fail on Windscreen (77% better than other 2004 cars)
    • 0.043% fail on Bonnet
  • 0.95% fail on Registration plates and VIN
    • 0.95% fail on Registration plate
  • 0.69% fail on Steering (86% better than other 2004 cars)
    • 0.43% fail on Steering system (90% better than other 2004 cars)
      • 0.22% fail on Steering rack (71% better than other 2004 cars)
      • 0.22% fail on Track rod end (93% better than other 2004 cars)
    • 0.26% fail on Power steering
      • 0.17% fail on Pipes and hoses
      • 0.086% fail on Other components
  • 0.35% fail on Seat Belts and Supplementary Restraint Systems (88% better than other 2004 cars)
    • 0.35% fail on Supplementary restraint systems (78% better than other 2004 cars)
      • 0.35% fail on SRS Malfunction Indicator Lamp (77% better than other 2004 cars)
  • 0.13% fail on Road Wheels
    • 0.086% fail on Attachment
    • 0.043% fail on Condition
  • 0.086% fail on Body, Structure and General Items (95% better than other 2004 cars)
    • 0.086% fail on Seats
      • 0.043% fail on Passengers
      • 0.043% fail on Drivers

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