Porsche 911 MOT Results

Registered in 1989
83.6% pass rate
from 616 tests in 2021
(45% better than other 1989 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 1989 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 7.8% fail on Lamps, reflectors and electrical equipment (44% better than other 1989 cars)
    • 3.6% fail on Headlamp aim
      • 3.2% fail on Headlamp aim
      • 0.32% fail on Headlamp aim not tested
    • 2.1% fail on Front and rear fog lamps
      • 2.1% fail on Rear fog lamp
        • 2.1% fail on Rear fog lamp
    • 1.3% fail on Headlamps (62% better than other 1989 cars)
      • 0.65% fail on Headlamp (80% better than other 1989 cars)
      • 0.32% fail on Dipswitch
      • 0.32% fail on Headlamp levelling device
    • 1.3% fail on Direction indicators (62% better than other 1989 cars)
      • 1.3% fail on Flashing type (62% better than other 1989 cars)
        • 0.65% fail on Side repeaters
        • 0.32% fail on All direction indicators
        • 0.32% fail on Individual direction indicators (81% better than other 1989 cars)
    • 1.1% fail on Stop lamp
    • 0.97% fail on Electrical equipment
      • 0.65% fail on Horn
      • 0.32% fail on Battery(ies)
    • 0.49% fail on Registration plate lamp(s)
    • 0.32% fail on Mandatory tell-tales
      • 0.32% fail on Rear fog lamp tell-tale
    • 0.16% fail on Hazard warning
      • 0.16% fail on Switch
  • 3.6% fail on Visibility (45% better than other 1989 cars)
    • 3.2% fail on Washers
    • 0.49% fail on Wipers (83% better than other 1989 cars)
  • 2.9% fail on Brakes (70% better than other 1989 cars)
    • 2.6% fail on Brake performance (63% better than other 1989 cars)
      • 1.1% fail on Service brake performance (60% better than other 1989 cars)
        • 1.1% fail on Rbt (59% better than other 1989 cars)
          • 1.1% fail on Service brake performance
          • 0.16% fail on Service brake imbalance
        • 0.16% fail on Decelerometer
          • 0.16% fail on Service brake performance
      • 0.97% fail on Service Brake Efficiency (sp) (69% better than other 1989 cars)
        • 0.97% fail on Rbt (sp) (68% better than other 1989 cars)
          • 0.65% fail on Service brake performance
          • 0.32% fail on Service brake imbalance (84% better than other 1989 cars)
      • 0.65% fail on Parking brake efficiency (sp) (77% better than other 1989 cars)
        • 0.49% fail on Rbt (sp) (81% better than other 1989 cars)
        • 0.16% fail on Decelerometer (sp)
      • 0.32% fail on Brake performance not tested
      • 0.16% fail on Parking brake performance
        • 0.16% fail on Rbt
          • 0.16% fail on Parking brake performance
    • 0.32% fail on Flexible brake hoses
    • 0.16% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.16% fail on Hydraulic brake cylinder
    • 0.16% fail on ABS / EBS / ESC
      • 0.16% fail on Anti-lock braking system
  • 2.3% fail on Body, chassis, structure (72% better than other 1989 cars)
    • 1.6% fail on Transmission
      • 1.5% fail on Drive shafts
        • 1.5% fail on Joints
      • 0.16% fail on Prop shafts
        • 0.16% fail on Joints
    • 0.49% fail on Exhaust system (81% better than other 1989 cars)
    • 0.16% fail on Fuel system
      • 0.16% fail on Pipe
    • 0.16% fail on Cabs
      • 0.16% fail on Prescribed areas
  • 2.3% fail on Noise, emissions and leaks (58% better than other 1989 cars)
    • 1.8% fail on Exhaust emissions (64% better than other 1989 cars)
      • 1.8% fail on Spark ignition (60% better than other 1989 cars)
        • 1.1% fail on Non catalyst emissions (68% better than other 1989 cars)
        • 0.65% fail on Catalyst emissions
      • 0.16% fail on Compression ignition
        • 0.16% fail on On or after 01/01/2014
    • 0.49% fail on Fluid leaks
      • 0.49% fail on Engine oil leaks
  • 0.97% fail on Suspension (89% better than other 1989 cars)
    • 0.49% fail on Anti-roll bars
      • 0.32% fail on Attachment bracket and mounting
      • 0.16% fail on Pins and bushes
      • 0.16% fail on Linkage pins and bushes
    • 0.16% fail on Wheel bearings
    • 0.16% fail on Shock absorbers
    • 0.16% fail on Suspension rods
      • 0.16% fail on Suspension rod
    • 0.16% fail on Component mounting prescribed areas
  • 0.97% fail on Tyres
    • 0.65% fail on Condition
    • 0.49% fail on Tread depth
  • 0.81% fail on Identification of the vehicle
    • 0.81% fail on Registration plates
  • 0.65% fail on Steering (83% better than other 1989 cars)
    • 0.32% fail on Steering column
    • 0.16% fail on Steering gear
      • 0.16% fail on Steering rack
    • 0.16% fail on Steering linkage components
      • 0.16% fail on Locking devices
  • 0.16% fail on Seat belts and supplementary restraint systems
    • 0.16% fail on Seat belts
      • 0.16% fail on Condition
  • 0.16% fail on Road Wheels
    • 0.16% fail on Attachment

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