Porsche 911 MOT Results

Registered in 2004
82.8% pass rate
from 2,659 tests in 2020
(65% 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.

  • 6.8% fail on Lamps, reflectors and electrical equipment (66% better than other 2004 cars)
    • 2.3% fail on Headlamp aim (51% better than other 2004 cars)
      • 2.2% fail on Headlamp aim (47% better than other 2004 cars)
      • 0.038% fail on Headlamp aim not tested
    • 1.7% fail on Position lamps (48% better than other 2004 cars)
      • 1.7% fail on Position lamp (48% better than other 2004 cars)
      • 0.038% fail on All position lamps
    • 1.2% fail on Registration plate lamp(s) (60% better than other 2004 cars)
    • 1.0% fail on Headlamps (82% better than other 2004 cars)
      • 0.86% fail on Headlamp (83% better than other 2004 cars)
      • 0.15% fail on Headlamp levelling device
    • 1.0% fail on Direction indicators (64% better than other 2004 cars)
      • 1.0% fail on Flashing type (64% better than other 2004 cars)
        • 0.64% fail on Side repeaters
        • 0.45% fail on Individual direction indicators (75% better than other 2004 cars)
        • 0.038% fail on All direction indicators
    • 0.49% fail on Stop lamp (90% better than other 2004 cars)
    • 0.19% fail on Electrical equipment (80% better than other 2004 cars)
      • 0.11% fail on Electrical wiring
      • 0.075% fail on Horn (86% better than other 2004 cars)
    • 0.038% fail on Hazard warning
      • 0.038% fail on Switch
    • 0.038% fail on Front and rear fog lamps
      • 0.038% fail on Rear fog lamp
        • 0.038% fail on Rear fog lamp
    • 0.038% fail on Mandatory tell-tales
      • 0.038% fail on Rear fog lamp tell-tale
  • 3.2% fail on Brakes (78% better than other 2004 cars)
    • 2.3% fail on Rigid brake pipes (37% better than other 2004 cars)
    • 0.86% fail on Brake performance (89% better than other 2004 cars)
      • 0.34% fail on Service brake performance (88% better than other 2004 cars)
        • 0.26% fail on Rbt (91% better than other 2004 cars)
          • 0.26% fail on Service brake performance (89% better than other 2004 cars)
          • 0.038% fail on Service brake imbalance
        • 0.075% fail on Plate brake tester
          • 0.075% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.23% fail on Service Brake Efficiency (sp) (79% better than other 2004 cars)
        • 0.19% fail on Rbt (sp) (82% better than other 2004 cars)
          • 0.19% fail on Service brake performance
          • 0.038% fail on Service brake imbalance
        • 0.038% fail on Decelerometer (sp)
      • 0.23% fail on Parking brake performance (88% better than other 2004 cars)
        • 0.23% fail on Rbt (87% better than other 2004 cars)
          • 0.23% fail on Parking brake performance (86% better than other 2004 cars)
      • 0.15% fail on Parking brake efficiency (sp) (97% better than other 2004 cars)
        • 0.15% fail on Rbt (sp) (96% better than other 2004 cars)
      • 0.075% fail on Brake performance not tested
    • 0.53% fail on Mechanical brake components (85% better than other 2004 cars)
      • 0.49% fail on Brake discs and drums (62% better than other 2004 cars)
        • 0.49% fail on Brake discs (61% better than other 2004 cars)
      • 0.038% fail on Brake linings and pads
        • 0.038% fail on Brake linings
    • 0.15% fail on Service brake pedal or hand lever (70% better than other 2004 cars)
      • 0.075% fail on Pedal
      • 0.075% fail on Hand lever
    • 0.075% fail on Hydraulic systems
      • 0.038% fail on Master cylinder
      • 0.038% fail on Brake fluid
    • 0.075% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.038% fail on Hydraulic brake callipers
      • 0.038% fail on Hydraulic brake cylinder
    • 0.075% fail on ABS / EBS / ESC (94% better than other 2004 cars)
      • 0.075% fail on Anti-lock braking system (93% better than other 2004 cars)
      • 0.038% fail on Electronic stability control
    • 0.038% fail on Air and vacuum systems
      • 0.038% fail on Leaks
    • 0.038% fail on Parking brake control
      • 0.038% fail on Lever
  • 3.2% fail on Tyres (58% better than other 2004 cars)
    • 1.8% fail on Tread depth (61% better than other 2004 cars)
    • 1.5% fail on Condition (51% better than other 2004 cars)
  • 2.8% fail on Noise, emissions and leaks (65% better than other 2004 cars)
    • 2.7% fail on Exhaust emissions (64% better than other 2004 cars)
      • 2.7% fail on Spark ignition (55% better than other 2004 cars)
        • 2.3% fail on Catalyst emissions
        • 0.23% fail on Malfunction indicator lamp (93% better than other 2004 cars)
        • 0.15% fail on Emissions not tested (81% better than other 2004 cars)
        • 0.038% fail on Emission control equipment
          • 0.038% fail on Other emission control equipment
        • 0.038% fail on Non catalyst emissions
      • 0.038% fail on Compression ignition
        • 0.038% fail on Malfunction indicator lamp
    • 0.11% fail on Fluid leaks (81% better than other 2004 cars)
      • 0.075% fail on Engine oil leaks (84% better than other 2004 cars)
      • 0.038% fail on Other leaks
  • 2.3% fail on Body, chassis, structure (74% better than other 2004 cars)
    • 1.3% fail on Transmission (65% better than other 2004 cars)
      • 1.2% fail on Drive shafts (65% better than other 2004 cars)
        • 1.2% fail on Joints (64% better than other 2004 cars)
      • 0.038% fail on Prop shafts
        • 0.038% fail on Joints
    • 0.53% fail on Exhaust system (85% better than other 2004 cars)
    • 0.49% fail on Fuel system
      • 0.49% fail on Fuel cap/sealing device (110% worse than other 2004 cars)
    • 0.11% fail on Doors (76% better than other 2004 cars)
      • 0.075% fail on Driver's door
        • 0.075% fail on Door condition
      • 0.038% fail on Front passenger's door
        • 0.038% fail on Door condition
    • 0.075% fail on Seats
      • 0.075% fail on Passenger's seat
    • 0.038% fail on Boot lid
      • 0.038% fail on Boot lid condition
  • 1.7% fail on Suspension (91% better than other 2004 cars)
    • 0.60% fail on Springs (85% better than other 2004 cars)
      • 0.60% fail on Coil springs (84% better than other 2004 cars)
        • 0.56% fail on Coil spring (85% better than other 2004 cars)
        • 0.038% fail on Mounting
    • 0.49% fail on Anti-roll bars (92% better than other 2004 cars)
      • 0.23% fail on Linkage ball joints (88% better than other 2004 cars)
      • 0.15% fail on Linkage ball joint dust cover (91% better than other 2004 cars)
      • 0.038% fail on Pins and bushes
      • 0.038% fail on Linkage pins and bushes
      • 0.038% fail on Ball joint
    • 0.30% fail on Suspension arms (95% better than other 2004 cars)
      • 0.15% fail on Pins and bushes (94% better than other 2004 cars)
      • 0.11% fail on Ball joint (96% better than other 2004 cars)
      • 0.038% fail on Ball joint dust cover
    • 0.23% fail on Shock absorbers (85% better than other 2004 cars)
    • 0.038% fail on Wheel bearings
    • 0.038% fail on Sub-frames
      • 0.038% fail on Attachment bracket and mounting
    • 0.038% fail on Other suspension component
      • 0.038% fail on Other suspension component
  • 1.3% fail on Visibility (84% better than other 2004 cars)
    • 0.71% fail on Washers (81% better than other 2004 cars)
    • 0.41% fail on Wipers (90% better than other 2004 cars)
    • 0.075% fail on Condition of glass
      • 0.075% fail on Windscreen
    • 0.075% fail on View to rear
      • 0.075% fail on Mirrors
    • 0.038% fail on Bonnet
  • 0.86% fail on Steering (82% better than other 2004 cars)
    • 0.49% fail on Steering linkage components (87% better than other 2004 cars)
      • 0.49% fail on Track rod end (86% better than other 2004 cars)
    • 0.30% fail on Steering gear (61% better than other 2004 cars)
      • 0.30% fail on Steering rack (60% better than other 2004 cars)
    • 0.15% fail on Power steering
      • 0.15% fail on Pipes and hoses
  • 0.83% fail on Identification of the vehicle
    • 0.83% fail on Registration plates
  • 0.56% fail on Seat belts and supplementary restraint systems (82% better than other 2004 cars)
    • 0.53% fail on SRS malfunction indicator lamp (67% better than other 2004 cars)
    • 0.038% fail on Seat belts
      • 0.038% fail on Attachment
  • 0.23% fail on Road Wheels
    • 0.15% fail on Condition
    • 0.075% fail on Attachment (79% better than other 2004 cars)

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