MOT Results

Honest John Good Garage Guide MOT Results » Porsche » 911 » 1988

Porsche 911 MOT Results

Registered in 1988
79.9% pass rate
from 487 tests in 2021
(33% better than other 1988 cars)
Pass rate by mileage
More MoT Results
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.

  • 10% fail on Lamps, reflectors and electrical equipment (30% better than other 1988 cars)
    • 3.9% fail on Headlamp aim
      • 3.5% fail on Headlamp aim
      • 0.41% fail on Headlamp aim not tested
    • 2.9% fail on Front and rear fog lamps
      • 2.9% fail on Rear fog lamp
        • 2.9% fail on Rear fog lamp
    • 2.1% fail on Headlamps
      • 1.4% fail on Headlamp
      • 0.41% fail on Headlamp levelling device (5 times worse than other 1988 cars)
      • 0.21% fail on Dipswitch
    • 1.6% fail on Direction indicators
      • 1.6% fail on Flashing type
        • 1.0% fail on Side repeaters
        • 0.62% fail on Individual direction indicators
    • 1.0% fail on Stop lamp
    • 0.82% fail on Registration plate lamp(s)
    • 0.82% fail on Electrical equipment
      • 0.62% fail on Horn
      • 0.21% fail on Electrical wiring
    • 0.21% fail on Hazard warning
      • 0.21% fail on Switch
  • 6.2% fail on Visibility
    • 5.1% fail on Washers
    • 1.2% fail on Wipers
    • 0.21% fail on View to rear
      • 0.21% fail on Mirrors
  • 5.1% fail on Brakes (48% better than other 1988 cars)
    • 4.5% fail on Brake performance
      • 2.7% fail on Service brake performance
        • 2.5% fail on Rbt
          • 2.1% fail on Service brake performance
          • 0.41% fail on Service brake imbalance
        • 0.21% fail on Decelerometer
          • 0.21% fail on Service brake performance
      • 1.0% fail on Service Brake Efficiency (sp) (68% better than other 1988 cars)
        • 1.0% fail on Rbt (sp) (66% better than other 1988 cars)
          • 0.82% fail on Service brake performance
          • 0.21% fail on Service brake imbalance
      • 0.82% fail on Parking brake performance
        • 0.82% fail on Rbt
          • 0.41% fail on Parking brake performance
          • 0.21% fail on Parking (secondary brake performance)
          • 0.21% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.82% fail on Parking brake efficiency (sp) (71% better than other 1988 cars)
        • 0.82% fail on Rbt (sp) (69% better than other 1988 cars)
    • 0.41% fail on Flexible brake hoses
    • 0.21% fail on Service brake pedal or hand lever
      • 0.21% fail on Pedal
    • 0.21% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.21% fail on Hydraulic brake callipers
  • 3.1% fail on Noise, emissions and leaks (47% better than other 1988 cars)
    • 3.1% fail on Exhaust emissions
      • 3.1% fail on Spark ignition
        • 2.5% fail on Non catalyst emissions
        • 0.62% fail on Catalyst emissions
  • 2.3% fail on Suspension (75% better than other 1988 cars)
    • 1.4% fail on Anti-roll bars
      • 1.0% fail on Attachment bracket and mounting (7 times worse than other 1988 cars)
      • 0.21% fail on Anti-roll bar
      • 0.21% fail on Linkage pins and bushes
    • 0.62% fail on Wheel bearings
    • 0.21% fail on Springs
      • 0.21% fail on Torsion bars
        • 0.21% fail on Attachment bracket
    • 0.21% fail on Suspension arms
      • 0.21% fail on Ball joint dust cover
    • 0.21% fail on Component mounting prescribed areas
  • 1.8% fail on Body, chassis, structure (77% better than other 1988 cars)
    • 1.2% fail on Transmission
      • 1.2% fail on Drive shafts
        • 1.2% fail on Joints
      • 0.21% fail on Prop shafts
        • 0.21% fail on Joints
    • 0.41% fail on Seats
      • 0.41% fail on Driver's seat
    • 0.21% fail on Integral vehicle structure
      • 0.21% fail on Integral vehicle structure condition
    • 0.21% fail on Chassis
      • 0.21% fail on Chassis condition
  • 1.0% fail on Seat belts and supplementary restraint systems
    • 1.0% fail on Seat belts
      • 0.82% fail on Prescribed areas
      • 0.21% fail on Condition
  • 0.62% fail on Identification of the vehicle
    • 0.62% fail on Registration plates
  • 0.62% fail on Steering (84% better than other 1988 cars)
    • 0.41% fail on Steering column
    • 0.21% fail on Steering gear
      • 0.21% fail on Steering rack
  • 0.41% fail on Tyres
    • 0.41% fail on Tread depth
  • 0.21% fail on Road Wheels
    • 0.21% fail on Attachment

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