Porsche 911 MOT Results

Registered in 1981
83.7% pass rate
from 123 tests in 2021
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 1981 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 13% fail on Lamps, reflectors and electrical equipment
    • 4.9% fail on Front and rear fog lamps
      • 4.9% fail on Rear fog lamp
        • 4.9% fail on Rear fog lamp
    • 4.1% fail on Headlamp aim
      • 4.1% fail on Headlamp aim
    • 3.3% fail on Headlamps
      • 2.4% fail on Headlamp
      • 0.81% fail on Dipswitch
    • 2.4% fail on Stop lamp
    • 2.4% fail on Electrical equipment
      • 1.6% fail on Horn
      • 0.81% fail on Battery(ies)
    • 1.6% fail on Direction indicators
      • 1.6% fail on Flashing type
        • 0.81% fail on All direction indicators
        • 0.81% fail on Individual direction indicators
    • 0.81% fail on Registration plate lamp(s)
  • 3.3% fail on Visibility
    • 3.3% fail on Washers
  • 2.4% fail on Brakes (73% better than other 1981 cars)
    • 1.6% fail on Brake performance
      • 1.6% fail on Service brake performance
        • 1.6% fail on Rbt
          • 1.6% fail on Service brake performance
      • 0.81% fail on Service Brake Efficiency (sp)
        • 0.81% fail on Rbt (sp)
          • 0.81% fail on Service brake performance
      • 0.81% fail on Parking brake efficiency (sp)
        • 0.81% fail on Rbt (sp)
    • 0.81% fail on Hydraulic systems
      • 0.81% fail on Brake fluid
  • 0.81% fail on Suspension
    • 0.81% fail on Anti-roll bars
      • 0.81% fail on Linkage pins and bushes
  • 0.81% fail on Body, chassis, structure
    • 0.81% fail on Transmission
      • 0.81% fail on Drive shafts
        • 0.81% fail on Joints
  • 0.81% fail on Tyres
    • 0.81% fail on Condition

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