Porsche 911 MOT Results

Registered in 1999
76.0% pass rate
from 1,443 tests in 2020
(47% better than other 1999 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 1999 cars and highlighted areas where the Porsche 911 is unusually good or bad.

  • 10% fail on Lamps, reflectors and electrical equipment (41% better than other 1999 cars)
    • 2.8% fail on Headlamp aim (33% better than other 1999 cars)
      • 2.6% fail on Headlamp aim (34% better than other 1999 cars)
      • 0.21% fail on Headlamp aim not tested
    • 2.1% fail on Registration plate lamp(s)
    • 1.9% fail on Headlamps (53% better than other 1999 cars)
      • 1.7% fail on Headlamp (55% better than other 1999 cars)
      • 0.21% fail on Headlamp levelling device
    • 1.8% fail on Stop lamp (62% better than other 1999 cars)
    • 1.5% fail on Position lamps (46% better than other 1999 cars)
      • 1.5% fail on Position lamp (44% better than other 1999 cars)
    • 1.2% fail on Direction indicators (48% better than other 1999 cars)
      • 1.2% fail on Flashing type (48% better than other 1999 cars)
        • 0.76% fail on Individual direction indicators (54% better than other 1999 cars)
        • 0.49% fail on Side repeaters
        • 0.069% fail on All direction indicators
        • 0.069% fail on Switch
    • 0.90% fail on Electrical equipment
      • 0.90% fail on Horn
    • 0.76% fail on Front and rear fog lamps
      • 0.76% fail on Rear fog lamp
        • 0.76% fail on Rear fog lamp
  • 6.1% fail on Brakes (57% better than other 1999 cars)
    • 2.8% fail on Rigid brake pipes
    • 2.8% fail on Brake performance (65% better than other 1999 cars)
      • 1.6% fail on Parking brake efficiency (sp) (59% better than other 1999 cars)
        • 1.2% fail on Rbt (sp) (67% better than other 1999 cars)
        • 0.28% fail on Decelerometer (sp)
        • 0.069% fail on Plate brake tester (sp)
      • 0.69% fail on Service Brake Efficiency (sp) (75% better than other 1999 cars)
        • 0.69% fail on Rbt (sp) (74% better than other 1999 cars)
          • 0.55% fail on Service brake performance
          • 0.14% fail on Service brake imbalance (92% better than other 1999 cars)
      • 0.55% fail on Service brake performance (82% better than other 1999 cars)
        • 0.55% fail on Rbt (81% better than other 1999 cars)
          • 0.55% fail on Service brake performance (77% better than other 1999 cars)
      • 0.49% fail on Parking brake performance (68% better than other 1999 cars)
        • 0.49% fail on Rbt (67% better than other 1999 cars)
          • 0.49% fail on Parking brake performance (63% better than other 1999 cars)
      • 0.28% fail on Brake performance not tested
    • 0.76% fail on ABS / EBS / ESC
      • 0.69% fail on Anti-lock braking system
      • 0.14% fail on Electronic stability control
    • 0.62% fail on Mechanical brake components (77% better than other 1999 cars)
      • 0.42% fail on Brake discs and drums
        • 0.42% fail on Brake discs
      • 0.14% fail on Brake linings and pads (92% better than other 1999 cars)
        • 0.14% fail on Brake pads (92% better than other 1999 cars)
      • 0.069% fail on Brake cables, rods, levers and linkages
        • 0.069% fail on Cable
    • 0.14% fail on Service brake pedal or hand lever
      • 0.069% fail on Pedal
      • 0.069% fail on Hand lever
    • 0.069% fail on Parking brake control
      • 0.069% fail on Lever
    • 0.069% fail on Flexible brake hoses
    • 0.069% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.069% fail on Hydraulic brake callipers
  • 3.5% fail on Suspension (79% better than other 1999 cars)
    • 1.5% fail on Suspension arms (70% better than other 1999 cars)
      • 0.62% fail on Ball joint (73% better than other 1999 cars)
      • 0.55% fail on Pins and bushes (73% better than other 1999 cars)
      • 0.28% fail on Ball joint dust cover
      • 0.069% fail on Suspension arm
      • 0.069% fail on Attachment bracket and mounting
    • 1.5% fail on Anti-roll bars (66% better than other 1999 cars)
      • 0.62% fail on Linkage ball joints
      • 0.55% fail on Linkage ball joint dust cover
      • 0.21% fail on Pins and bushes
      • 0.14% fail on Ball joint dust cover
      • 0.069% fail on Ball joint
    • 0.69% fail on Shock absorbers
    • 0.14% fail on Suspension rods
      • 0.069% fail on Suspension rod
      • 0.069% fail on Ball joint
    • 0.14% fail on Component mounting prescribed areas (97% better than other 1999 cars)
    • 0.069% fail on Macpherson strut
      • 0.069% fail on Pins and bushes
  • 3.3% fail on Tyres (43% better than other 1999 cars)
    • 2.0% fail on Tread depth (43% better than other 1999 cars)
    • 1.5% fail on Condition
  • 3.1% fail on Body, chassis, structure (72% better than other 1999 cars)
    • 1.8% fail on Transmission (47% better than other 1999 cars)
      • 1.7% fail on Drive shafts (45% better than other 1999 cars)
        • 1.7% fail on Joints (44% better than other 1999 cars)
      • 0.069% fail on Prop shafts
        • 0.069% fail on Joints
    • 1.2% fail on Exhaust system (68% better than other 1999 cars)
    • 0.14% fail on Fuel system (81% better than other 1999 cars)
      • 0.14% fail on Fuel cap/sealing device
    • 0.069% fail on Seats
      • 0.069% fail on Passenger's seat
  • 2.9% fail on Noise, emissions and leaks (67% better than other 1999 cars)
    • 2.8% fail on Exhaust emissions (67% better than other 1999 cars)
      • 2.8% fail on Spark ignition (65% better than other 1999 cars)
        • 2.5% fail on Catalyst emissions (60% better than other 1999 cars)
        • 0.28% fail on Emissions not tested (76% better than other 1999 cars)
        • 0.069% fail on Malfunction indicator lamp
      • 0.069% fail on Compression ignition
        • 0.069% fail on On or after 01/01/2014
    • 0.14% fail on Fluid leaks (80% better than other 1999 cars)
      • 0.069% fail on Engine oil leaks
      • 0.069% fail on Other leaks
  • 2.3% fail on Visibility (71% better than other 1999 cars)
    • 1.2% fail on Washers (64% better than other 1999 cars)
    • 1.0% fail on Wipers (76% better than other 1999 cars)
    • 0.069% fail on Driver's view
    • 0.069% fail on Bonnet
  • 1.5% fail on Seat belts and supplementary restraint systems (67% better than other 1999 cars)
    • 1.2% fail on SRS malfunction indicator lamp
    • 0.28% fail on Seat belts (91% better than other 1999 cars)
      • 0.14% fail on Prescribed areas (95% better than other 1999 cars)
      • 0.14% fail on Condition
    • 0.069% fail on Airbags
      • 0.069% fail on Drivers airbag
  • 1.2% fail on Steering (71% better than other 1999 cars)
    • 0.90% fail on Steering linkage components (64% better than other 1999 cars)
      • 0.83% fail on Track rod end (60% better than other 1999 cars)
      • 0.069% fail on Ball joint
    • 0.21% fail on Power steering
      • 0.14% fail on Pipes and hoses
      • 0.069% fail on Other components
    • 0.069% fail on Steering gear
      • 0.069% fail on Steering rack
  • 0.97% fail on Identification of the vehicle
    • 0.97% fail on Registration plates
  • 0.069% fail on Road Wheels
    • 0.069% fail on Condition

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