smart forfour MOT Results

Registered in 2005
57.4% pass rate
from 1,197 tests in 2020
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 2005 cars and highlighted areas where the smart forfour is unusually good or bad.

  • 22% fail on Lamps, reflectors and electrical equipment (18% worse than other 2005 cars)
    • 7.6% fail on Headlamps (47% worse than other 2005 cars)
      • 7.5% fail on Headlamp (51% worse than other 2005 cars)
      • 0.084% fail on Dipswitch
    • 5.7% fail on Stop lamp
    • 4.6% fail on Registration plate lamp(s) (66% worse than other 2005 cars)
    • 3.6% fail on Headlamp aim
      • 3.2% fail on Headlamp aim
      • 0.42% fail on Headlamp aim not tested
    • 3.3% fail on Position lamps
      • 3.3% fail on Position lamp
    • 3.1% fail on Direction indicators
      • 3.1% fail on Flashing type
        • 1.6% fail on Side repeaters (110% worse than other 2005 cars)
        • 1.5% fail on Individual direction indicators
        • 0.084% fail on All direction indicators
    • 1.8% fail on Electrical equipment (130% worse than other 2005 cars)
      • 0.92% fail on Horn
      • 0.84% fail on Battery(ies) (170% worse than other 2005 cars)
      • 0.084% fail on Electrical wiring
    • 0.67% fail on Front and rear fog lamps
      • 0.67% fail on Rear fog lamp
        • 0.67% fail on Rear fog lamp
    • 0.084% fail on Hazard warning
      • 0.084% fail on Switch
    • 0.084% fail on Rear reflectors
    • 0.084% fail on Mandatory tell-tales
      • 0.084% fail on Rear fog lamp tell-tale
  • 12% fail on Brakes
    • 7.4% fail on Brake performance
      • 5.1% fail on Parking brake efficiency (sp)
        • 5.1% fail on Rbt (sp)
      • 3.4% fail on Parking brake performance (99% worse than other 2005 cars)
        • 3.4% fail on Rbt (110% worse than other 2005 cars)
          • 3.2% fail on Parking brake performance (120% worse than other 2005 cars)
          • 0.25% fail on Parking (secondary brake performance)
      • 2.3% fail on Service brake performance
        • 2.3% fail on Rbt
          • 1.7% fail on Service brake performance
          • 0.84% fail on Service brake imbalance
      • 0.58% fail on Service Brake Efficiency (sp)
        • 0.50% fail on Rbt (sp)
          • 0.42% fail on Service brake imbalance
          • 0.17% fail on Service brake performance
        • 0.084% fail on Plate brake tester (sp)
          • 0.084% fail on Service brake imbalance
      • 0.084% fail on Brake performance not tested
    • 5.0% fail on Mechanical brake components
      • 3.6% fail on Brake linings and pads
        • 3.6% fail on Brake pads
      • 2.2% fail on Brake discs and drums
        • 2.2% fail on Brake discs
      • 0.25% fail on Brake cables, rods, levers and linkages
        • 0.17% fail on Cable
        • 0.084% fail on Lever
    • 0.67% fail on Parking brake control
      • 0.67% fail on Lever
    • 0.58% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.50% fail on Hydraulic brake callipers
      • 0.084% fail on Hydraulic brake cylinder
    • 0.58% fail on ABS / EBS / ESC
      • 0.58% fail on Anti-lock braking system
    • 0.33% fail on Service brake pedal or hand lever
      • 0.33% fail on Hand lever
    • 0.17% fail on Flexible brake hoses
    • 0.084% fail on Hydraulic systems
      • 0.084% fail on Brake fluid
    • 0.084% fail on Rigid brake pipes
  • 11% fail on Suspension (37% better than other 2005 cars)
    • 3.6% fail on Springs
      • 3.6% fail on Coil springs
        • 3.6% fail on Coil spring
    • 2.8% fail on Anti-roll bars (52% better than other 2005 cars)
      • 1.1% fail on Linkage ball joints
      • 0.75% fail on Ball joint
      • 0.42% fail on Linkage ball joint dust cover (77% better than other 2005 cars)
      • 0.25% fail on Ball joint dust cover
      • 0.17% fail on Linkage pins and bushes
      • 0.084% fail on Pins and bushes
      • 0.084% fail on Linkage
    • 2.6% fail on Suspension arms (57% better than other 2005 cars)
      • 1.3% fail on Pins and bushes (54% better than other 2005 cars)
      • 0.75% fail on Ball joint (71% better than other 2005 cars)
      • 0.58% fail on Ball joint dust cover
      • 0.084% fail on Attachment bracket and mounting
    • 2.2% fail on Wheel bearings
    • 0.84% fail on Shock absorbers
    • 0.25% fail on Sub-frames
      • 0.17% fail on Pins and bushes
      • 0.084% fail on Ball joint dust cover
    • 0.17% fail on Suspension rods
      • 0.17% fail on Ball joint (4 times worse than other 2005 cars)
    • 0.17% fail on Other suspension component
      • 0.084% fail on Pins and bushes
      • 0.084% fail on Ball joint dust cover
  • 7.9% fail on Body, chassis, structure
    • 4.2% fail on Doors (8 times worse than other 2005 cars)
      • 2.1% fail on Driver's door (20 times worse than other 2005 cars)
        • 2.1% fail on Door condition (22 times worse than other 2005 cars)
      • 1.6% fail on Other passenger's door (6 times worse than other 2005 cars)
        • 1.6% fail on Door condition (6 times worse than other 2005 cars)
      • 0.75% fail on Front passenger's door (4 times worse than other 2005 cars)
        • 0.67% fail on Door condition (3 times worse than other 2005 cars)
        • 0.084% fail on Catch
    • 1.8% fail on Transmission (50% better than other 2005 cars)
      • 1.8% fail on Drive shafts (47% better than other 2005 cars)
        • 1.8% fail on Joints (49% better than other 2005 cars)
        • 0.084% fail on Bearing housing
    • 1.8% fail on Exhaust system (42% better than other 2005 cars)
    • 0.67% fail on Fuel system
      • 0.58% fail on Fuel cap/sealing device (170% worse than other 2005 cars)
      • 0.084% fail on Tank
    • 0.25% fail on Body
      • 0.084% fail on Body condition
      • 0.084% fail on Panel
      • 0.084% fail on Other body component
    • 0.084% fail on Bumpers
    • 0.084% fail on Engine mounting
      • 0.084% fail on Bracket
    • 0.084% fail on Seats
      • 0.084% fail on Passenger's seat
    • 0.084% fail on Undertray
  • 7.3% fail on Visibility
    • 4.4% fail on Wipers
    • 2.4% fail on Washers
    • 0.33% fail on View to rear
      • 0.33% fail on Mirrors
    • 0.25% fail on Condition of glass
      • 0.25% fail on Windscreen
    • 0.17% fail on Driver's view
  • 5.3% fail on Tyres (30% better than other 2005 cars)
    • 3.3% fail on Condition
    • 2.2% fail on Tread depth (53% better than other 2005 cars)
    • 0.25% fail on Size/type
  • 5.0% fail on Noise, emissions and leaks (28% better than other 2005 cars)
    • 5.0% fail on Exhaust emissions
      • 4.7% fail on Spark ignition
        • 2.4% fail on Catalyst emissions
        • 1.7% fail on Malfunction indicator lamp
        • 0.84% fail on Emissions not tested
        • 0.084% fail on Emission control equipment
          • 0.084% fail on Catalytic converter
      • 0.50% fail on Compression ignition (71% better than other 2005 cars)
        • 0.25% fail on Pre 01/07/2008 Turbo (75% better than other 2005 cars)
        • 0.17% fail on Malfunction indicator lamp
        • 0.084% fail on Pre 01/07/2008 Non turbo
  • 3.8% fail on Steering
    • 3.3% fail on Steering linkage components
      • 3.3% fail on Track rod end
      • 0.084% fail on Drag link end
    • 0.25% fail on Electronic power steering
    • 0.084% fail on Power steering
      • 0.084% fail on Operation
    • 0.084% fail on Steering play
      • 0.084% fail on Steering rack
  • 1.3% fail on Seat belts and supplementary restraint systems (51% better than other 2005 cars)
    • 1.0% fail on SRS malfunction indicator lamp
    • 0.25% fail on Seat belts (79% better than other 2005 cars)
      • 0.25% fail on Condition
    • 0.084% fail on Airbags
      • 0.084% fail on Drivers airbag
  • 0.92% fail on Identification of the vehicle
    • 0.92% fail on Registration plates
  • 0.42% fail on Road Wheels
    • 0.25% fail on Attachment
    • 0.17% fail on Condition
Read the Honest John Review

  • Smart Forfour (2004 - 2006)
    Funky-looking, versatile hatch with plenty of safety kit. Manual versions drive well. Four stars for the diesels, by far the best in the line-up.

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