Ford Sierra MOT Results

Registered in 1991
79.5% pass rate
from 482 tests in 2020
(42% better than other 1991 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 1991 cars and highlighted areas where the Ford Sierra is unusually good or bad.

  • 6.8% fail on Suspension (39% better than other 1991 cars)
    • 2.9% fail on Component mounting prescribed areas
    • 1.9% fail on Suspension arms
      • 1.0% fail on Ball joint
      • 0.62% fail on Pins and bushes
      • 0.41% fail on Ball joint dust cover
    • 1.7% fail on Springs
      • 1.7% fail on Coil springs
        • 1.7% fail on Coil spring
    • 0.62% fail on Shock absorbers
    • 0.21% fail on Wheel bearings
    • 0.21% fail on Anti-roll bars
      • 0.21% fail on Pins and bushes
    • 0.21% fail on Sub-frames
      • 0.21% fail on Sub-frame mounting prescribed areas
  • 6.8% fail on Body, chassis, structure
    • 1.9% fail on Exhaust system
    • 1.9% fail on Transmission
      • 1.7% fail on Drive shafts
        • 1.7% fail on Joints
      • 0.21% fail on Prop shafts
        • 0.21% fail on Joints
    • 1.7% fail on Integral vehicle structure
      • 1.7% fail on Integral vehicle structure condition
    • 1.2% fail on Chassis
      • 1.2% fail on Chassis condition
    • 1.0% fail on Fuel system
      • 0.83% fail on Tank (6 times worse than other 1991 cars)
      • 0.21% fail on Pipe
      • 0.21% fail on System
    • 1.0% fail on Seats
      • 1.0% fail on Driver's seat
    • 0.21% fail on Bumpers
    • 0.21% fail on Floor
  • 6.6% fail on Lamps, reflectors and electrical equipment (59% better than other 1991 cars)
    • 2.5% fail on Stop lamp
    • 1.9% fail on Headlamps
      • 1.9% fail on Headlamp
    • 1.7% fail on Headlamp aim (58% better than other 1991 cars)
      • 1.7% fail on Headlamp aim
    • 1.2% fail on Front and rear fog lamps (70% better than other 1991 cars)
      • 1.2% fail on Rear fog lamp (70% better than other 1991 cars)
        • 1.2% fail on Rear fog lamp (69% better than other 1991 cars)
    • 1.2% fail on Electrical equipment
      • 0.83% fail on Horn
      • 0.41% fail on Battery(ies)
      • 0.21% fail on Electrical wiring
    • 1.0% fail on Direction indicators
      • 1.0% fail on Flashing type
        • 0.62% fail on Side repeaters
        • 0.21% fail on All direction indicators
        • 0.21% fail on Individual direction indicators
    • 0.62% fail on Position lamps
      • 0.41% fail on Position lamp
      • 0.21% fail on Switch
    • 0.62% fail on Registration plate lamp(s)
    • 0.21% fail on Hazard warning
      • 0.21% fail on Switch
  • 4.8% fail on Brakes (59% better than other 1991 cars)
    • 3.5% fail on Brake performance (56% better than other 1991 cars)
      • 1.7% fail on Parking brake efficiency (sp)
        • 1.2% fail on Rbt (sp)
        • 0.41% fail on Decelerometer (sp)
      • 1.0% fail on Service brake performance (69% better than other 1991 cars)
        • 1.0% fail on Rbt (68% better than other 1991 cars)
          • 0.83% fail on Service brake performance (70% better than other 1991 cars)
          • 0.21% fail on Service brake imbalance
      • 0.83% fail on Service Brake Efficiency (sp) (74% better than other 1991 cars)
        • 0.83% fail on Rbt (sp) (73% better than other 1991 cars)
          • 0.62% fail on Service brake imbalance
          • 0.21% fail on Service brake performance
      • 0.83% fail on Parking brake performance
        • 0.83% fail on Rbt
          • 0.41% fail on Parking brake performance
          • 0.41% fail on Parking (secondary brake performance)
      • 0.62% fail on Brake performance not tested
    • 0.83% fail on Rigid brake pipes
    • 0.62% fail on ABS / EBS / ESC
      • 0.62% fail on Anti-lock braking system
    • 0.41% fail on Service brake pedal or hand lever
      • 0.41% fail on Pedal
    • 0.41% fail on Hydraulic systems
      • 0.41% fail on Brake fluid
    • 0.21% fail on Mechanical brake components
      • 0.21% fail on Brake discs and drums
        • 0.21% fail on Brake discs
  • 4.6% fail on Noise, emissions and leaks
    • 2.9% fail on Exhaust emissions
      • 2.9% fail on Spark ignition
        • 2.5% fail on Non catalyst emissions
        • 0.21% fail on Catalyst emissions
        • 0.21% fail on Emissions not tested
    • 1.7% fail on Fluid leaks
      • 1.5% fail on Engine oil leaks (190% worse than other 1991 cars)
      • 0.21% fail on Other leaks
  • 3.5% fail on Visibility (51% better than other 1991 cars)
    • 1.9% fail on Wipers
    • 1.9% fail on Washers (55% better than other 1991 cars)
    • 0.21% fail on View to rear
      • 0.21% fail on Indirect vision devices
  • 3.3% fail on Tyres
    • 1.9% fail on Tread depth
    • 1.2% fail on Condition
    • 0.21% fail on Size/type
  • 2.1% fail on Seat belts and supplementary restraint systems
    • 2.1% fail on Seat belts
      • 1.7% fail on Prescribed areas
      • 0.41% fail on Condition
  • 1.9% fail on Steering (63% better than other 1991 cars)
    • 0.83% fail on Steering column (8 times worse than other 1991 cars)
    • 0.62% fail on Steering linkage components
      • 0.41% fail on Track rod end
      • 0.21% fail on Locking devices
    • 0.41% fail on Steering gear (80% better than other 1991 cars)
      • 0.41% fail on Steering rack
    • 0.21% fail on Steering wheel
  • 0.21% fail on Identification of the vehicle
    • 0.21% fail on Registration plates

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