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Triumph Stag MOT Results

76.0% pass rate
from 1,971 tests in 2020
(13% better than other pre-1990 cars)
Number of tests by age
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 pre-1990 cars and highlighted areas where the Triumph Stag is unusually good or bad.

  • 11% fail on Lamps, reflectors and electrical equipment (18% better than other pre-1990 cars)
    • 3.8% fail on Headlamps
      • 3.7% fail on Headlamp
      • 0.10% fail on Dipswitch
      • 0.051% fail on Matched pair
    • 2.6% fail on Direction indicators
      • 2.6% fail on Flashing type
        • 1.6% fail on Individual direction indicators
        • 0.76% fail on All direction indicators
        • 0.10% fail on Side repeaters (85% better than other pre-1990 cars)
        • 0.10% fail on Switch
    • 2.4% fail on Headlamp aim (31% better than other pre-1990 cars)
      • 2.3% fail on Headlamp aim
      • 0.10% fail on Headlamp aim not tested
    • 2.4% fail on Stop lamp
    • 1.4% fail on Electrical equipment (38% better than other pre-1990 cars)
      • 0.96% fail on Horn
      • 0.46% fail on Battery(ies)
      • 0.051% fail on Electrical wiring
    • 1.2% fail on Position lamps
      • 1.1% fail on Position lamp
      • 0.051% fail on All position lamps
      • 0.051% fail on Switch
    • 0.91% fail on Registration plate lamp(s)
    • 0.10% fail on Hazard warning
      • 0.10% fail on Switch
  • 7.6% fail on Brakes (20% better than other pre-1990 cars)
    • 6.8% fail on Brake performance
      • 3.7% fail on Service brake performance
        • 3.7% fail on Rbt
          • 3.1% fail on Service brake performance
          • 0.86% fail on Service brake imbalance
        • 0.051% fail on Plate brake tester
          • 0.051% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 2.8% fail on Parking brake efficiency (sp)
        • 2.8% fail on Rbt (sp)
      • 2.1% fail on Service Brake Efficiency (sp)
        • 2.1% fail on Rbt (sp)
          • 1.6% fail on Service brake imbalance
          • 0.81% fail on Service brake performance
      • 1.0% fail on Parking brake performance
        • 1.0% fail on Rbt
          • 0.61% fail on Parking brake performance
          • 0.46% fail on Parking (secondary brake performance)
      • 0.15% fail on Brake performance not tested
    • 0.41% fail on Flexible brake hoses
    • 0.36% fail on Mechanical brake components (60% better than other pre-1990 cars)
      • 0.20% fail on Brake cables, rods, levers and linkages
        • 0.15% fail on Cable
        • 0.051% fail on Lever
      • 0.15% fail on Brake linings and pads
        • 0.15% fail on Brake pads
    • 0.25% fail on Service brake pedal or hand lever
      • 0.15% fail on Pedal
      • 0.10% fail on Hand lever
    • 0.20% fail on Rigid brake pipes (83% better than other pre-1990 cars)
    • 0.20% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.10% fail on Hydraulic brake callipers
      • 0.10% fail on Hydraulic brake cylinder
    • 0.10% fail on Parking brake control
      • 0.10% fail on Lever
    • 0.051% fail on Hydraulic systems
      • 0.051% fail on Valves
    • 0.051% fail on Other components and prescribed areas
      • 0.051% fail on Prescribed areas
        • 0.051% fail on Master cylinder/servo mounting
  • 6.4% fail on Suspension (21% better than other pre-1990 cars)
    • 2.4% fail on Component mounting prescribed areas
    • 2.1% fail on Suspension arms
      • 0.81% fail on Pins and bushes
      • 0.81% fail on Ball joint dust cover
      • 0.56% fail on Ball joint
      • 0.051% fail on Suspension arm
      • 0.051% fail on Attachment bracket and mounting
    • 1.8% fail on Wheel bearings
    • 0.41% fail on Anti-roll bars
      • 0.15% fail on Attachment bracket and mounting
      • 0.15% fail on Linkage pins and bushes
      • 0.051% fail on Linkage
      • 0.051% fail on Linkage ball joints
    • 0.41% fail on Sub-frames
      • 0.25% fail on Pins and bushes (2 times worse than other pre-1990 cars)
      • 0.10% fail on Sub-frame mounting prescribed areas
      • 0.051% fail on Attachment bracket and mounting
    • 0.15% fail on Shock absorbers (77% better than other pre-1990 cars)
    • 0.15% fail on Suspension rods
      • 0.10% fail on Pins and bushes
      • 0.051% fail on Ball joint
    • 0.15% fail on Other suspension component
      • 0.10% fail on Ball joint dust cover
      • 0.051% fail on Ball joint
    • 0.10% fail on Springs (86% better than other pre-1990 cars)
      • 0.051% fail on Coil springs
        • 0.051% fail on Coil spring
      • 0.051% fail on Spring mounting prescribed areas
    • 0.10% fail on Macpherson strut
      • 0.051% fail on Pins and bushes
      • 0.051% fail on Ball joint dust cover
  • 6.2% fail on Visibility
    • 5.0% fail on Washers
    • 1.8% fail on Wipers
  • 4.3% fail on Steering
    • 2.0% fail on Steering linkage components
      • 1.7% fail on Track rod end
      • 0.15% fail on Locking devices
      • 0.10% fail on Ball joint
    • 1.1% fail on Steering gear
      • 1.1% fail on Steering rack
      • 0.051% fail on Operation
    • 0.81% fail on Power steering (120% worse than other pre-1990 cars)
      • 0.36% fail on Pipes and hoses (3 times worse than other pre-1990 cars)
      • 0.30% fail on Other components
      • 0.10% fail on Rams
      • 0.051% fail on Operation
    • 0.56% fail on Steering column (2 times worse than other pre-1990 cars)
    • 0.25% fail on Steering wheel
    • 0.15% fail on Steering play
      • 0.15% fail on Steering rack
    • 0.10% fail on Steering coupling
      • 0.10% fail on Universal joint
  • 3.7% fail on Body, chassis, structure (47% better than other pre-1990 cars)
    • 0.91% fail on Fuel system
      • 0.36% fail on Pipe
      • 0.36% fail on Fuel cap/sealing device
      • 0.15% fail on Hose
      • 0.051% fail on Tank
      • 0.051% fail on System
    • 0.76% fail on Chassis
      • 0.76% fail on Chassis condition
    • 0.61% fail on Integral vehicle structure
      • 0.61% fail on Integral vehicle structure condition
    • 0.51% fail on Exhaust system (74% better than other pre-1990 cars)
    • 0.36% fail on Seats
      • 0.20% fail on Driver's seat
      • 0.15% fail on Passenger's seat
    • 0.30% fail on Transmission (77% better than other pre-1990 cars)
      • 0.30% fail on Drive shafts (71% better than other pre-1990 cars)
        • 0.25% fail on Joints (75% better than other pre-1990 cars)
        • 0.051% fail on Drive shaft
    • 0.30% fail on Doors
      • 0.25% fail on Front passenger's door
        • 0.20% fail on Door condition
        • 0.051% fail on Catch
      • 0.051% fail on Driver's door
        • 0.051% fail on Catch
    • 0.20% fail on Floor
    • 0.051% fail on Cabs
      • 0.051% fail on Prescribed areas
  • 2.9% fail on Noise, emissions and leaks (32% better than other pre-1990 cars)
    • 2.3% fail on Exhaust emissions (38% better than other pre-1990 cars)
      • 2.2% fail on Spark ignition (34% better than other pre-1990 cars)
        • 2.0% fail on Non catalyst emissions
        • 0.10% fail on Catalyst emissions
        • 0.10% fail on Emissions not tested
      • 0.051% fail on Compression ignition
        • 0.051% fail on Pre 01/07/2008 Turbo
    • 0.61% fail on Fluid leaks
      • 0.30% fail on Engine oil leaks
      • 0.20% fail on Transmission oil leaks
      • 0.10% fail on Other leaks
      • 0.051% fail on Hydraulic fluid leaks
  • 1.0% fail on Seat belts and supplementary restraint systems
    • 1.0% fail on Seat belts
      • 0.76% fail on Condition
      • 0.20% fail on Prescribed areas (83% better than other pre-1990 cars)
      • 0.15% fail on Attachment
  • 0.51% fail on Tyres (68% better than other pre-1990 cars)
    • 0.30% fail on Tread depth
    • 0.20% fail on Condition (75% better than other pre-1990 cars)
  • 0.10% fail on Identification of the vehicle (85% better than other pre-1990 cars)
    • 0.051% fail on Registration plates
    • 0.051% fail on Vehicle Identification Number
  • 0.10% fail on Seat belt installation check
    • 0.051% fail on Anchorages
    • 0.051% fail on Belt(s)/padding
  • 0.10% fail on Road Wheels
    • 0.051% fail on Condition
    • 0.051% fail on Attachment
Read the Honest John Review

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