smart forfour MOT Results

Registered in 2004
53.1% pass rate
from 356 tests in 2020
(0.016% worse than other 2004 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 2004 cars and highlighted areas where the smart forfour is unusually good or bad.

  • 21% fail on Lamps, reflectors and electrical equipment (20% worse than other 2004 cars)
    • 13% fail on Headlamps (130% worse than other 2004 cars)
      • 13% fail on Headlamp (140% worse than other 2004 cars)
    • 5.9% fail on Stop lamp (24% worse than other 2004 cars)
    • 3.9% fail on Registration plate lamp(s) (51% worse than other 2004 cars)
    • 2.5% fail on Headlamp aim (34% better than other 2004 cars)
      • 1.7% fail on Headlamp aim (51% better than other 2004 cars)
      • 1.1% fail on Headlamp aim not tested (150% worse than other 2004 cars)
    • 2.2% fail on Direction indicators (19% better than other 2004 cars)
      • 2.2% fail on Flashing type (19% better than other 2004 cars)
        • 1.4% fail on Individual direction indicators (21% better than other 2004 cars)
        • 0.84% fail on Side repeaters (14% better than other 2004 cars)
    • 2.2% fail on Electrical equipment (150% worse than other 2004 cars)
      • 1.4% fail on Battery(ies) (3 times worse than other 2004 cars)
      • 0.56% fail on Horn (10% worse than other 2004 cars)
      • 0.28% fail on Electrical wiring
    • 0.56% fail on Front and rear fog lamps (54% better than other 2004 cars)
      • 0.56% fail on Rear fog lamp (54% better than other 2004 cars)
        • 0.56% fail on Rear fog lamp (53% better than other 2004 cars)
    • 0.28% fail on Position lamps
      • 0.28% fail on Position lamp
    • 0.28% fail on Rear reflectors
  • 15% fail on Brakes (9.4% worse than other 2004 cars)
    • 11% fail on Brake performance (46% worse than other 2004 cars)
      • 5.9% fail on Parking brake efficiency (sp) (41% worse than other 2004 cars)
        • 5.9% fail on Rbt (sp) (50% worse than other 2004 cars)
      • 3.9% fail on Service brake performance (33% worse than other 2004 cars)
        • 3.9% fail on Rbt (36% worse than other 2004 cars)
          • 2.8% fail on Service brake performance (15% worse than other 2004 cars)
          • 1.1% fail on Service brake imbalance (77% worse than other 2004 cars)
      • 3.4% fail on Parking brake performance (96% worse than other 2004 cars)
        • 3.1% fail on Rbt (87% worse than other 2004 cars)
          • 2.8% fail on Parking brake performance (91% worse than other 2004 cars)
          • 0.28% fail on Parking (secondary brake performance)
        • 0.28% fail on Plate brake tester
          • 0.28% fail on Parking brake performance
      • 2.0% fail on Service Brake Efficiency (sp) (85% worse than other 2004 cars)
        • 2.0% fail on Rbt (sp) (90% worse than other 2004 cars)
          • 1.7% fail on Service brake imbalance (110% worse than other 2004 cars)
          • 0.28% fail on Service brake performance
      • 0.28% fail on Brake performance not tested
    • 2.8% fail on Mechanical brake components (18% better than other 2004 cars)
      • 2.0% fail on Brake linings and pads (15% better than other 2004 cars)
        • 2.0% fail on Brake pads (14% better than other 2004 cars)
      • 1.7% fail on Brake discs and drums (32% worse than other 2004 cars)
        • 1.7% fail on Brake discs (34% worse than other 2004 cars)
    • 1.1% fail on ABS / EBS / ESC (18% better than other 2004 cars)
      • 1.1% fail on Anti-lock braking system (1.0% better than other 2004 cars)
      • 0.28% fail on Electronic stability control
    • 0.84% fail on Parking brake control (71% worse than other 2004 cars)
      • 0.84% fail on Lever (80% worse than other 2004 cars)
    • 0.56% fail on Brake actuators (including spring brakes or hydraulic cylinders) (150% worse than other 2004 cars)
      • 0.28% fail on Hydraulic brake callipers
      • 0.28% fail on Hydraulic brake cylinder
    • 0.28% fail on Air and vacuum systems
      • 0.28% fail on Leaks
    • 0.28% fail on Hydraulic systems
      • 0.28% fail on Brake fluid
    • 0.28% fail on Rigid brake pipes
    • 0.28% fail on Other components and prescribed areas
      • 0.28% fail on Other components
  • 10% fail on Suspension (40% better than other 2004 cars)
    • 4.2% fail on Springs (19% worse than other 2004 cars)
      • 3.9% fail on Coil springs (12% worse than other 2004 cars)
        • 3.7% fail on Coil spring (5.3% worse than other 2004 cars)
        • 0.28% fail on Mounting
      • 0.28% fail on Spring mounting prescribed areas
    • 2.8% fail on Wheel bearings (79% worse than other 2004 cars)
    • 2.8% fail on Anti-roll bars (51% better than other 2004 cars)
      • 1.4% fail on Linkage ball joints (21% better than other 2004 cars)
      • 0.84% fail on Ball joint dust cover (9.9% worse than other 2004 cars)
      • 0.56% fail on Ball joint (3.6% worse than other 2004 cars)
      • 0.28% fail on Linkage ball joint dust cover
    • 2.0% fail on Suspension arms (67% better than other 2004 cars)
      • 0.84% fail on Ball joint (68% better than other 2004 cars)
      • 0.84% fail on Ball joint dust cover (13% better than other 2004 cars)
      • 0.28% fail on Pins and bushes
  • 8.7% fail on Body, chassis, structure (2.2% better than other 2004 cars)
    • 4.5% fail on Doors (8 times worse than other 2004 cars)
      • 3.1% fail on Driver's door (27 times worse than other 2004 cars)
        • 3.1% fail on Door condition (30 times worse than other 2004 cars)
      • 2.2% fail on Front passenger's door (13 times worse than other 2004 cars)
        • 2.2% fail on Door condition (14 times worse than other 2004 cars)
    • 2.8% fail on Exhaust system (16% better than other 2004 cars)
    • 0.56% fail on Fuel system (20% worse than other 2004 cars)
      • 0.56% fail on Fuel cap/sealing device (130% worse than other 2004 cars)
    • 0.28% fail on Integral vehicle structure
      • 0.28% fail on Integral vehicle structure condition
    • 0.28% fail on Bumpers
    • 0.28% fail on Transmission
      • 0.28% fail on Drive shafts
        • 0.28% fail on Joints
  • 7.6% fail on Noise, emissions and leaks (1.5% worse than other 2004 cars)
    • 7.6% fail on Exhaust emissions (7.2% worse than other 2004 cars)
      • 7.0% fail on Spark ignition (21% worse than other 2004 cars)
        • 4.5% fail on Catalyst emissions (79% worse than other 2004 cars)
        • 2.5% fail on Malfunction indicator lamp (20% better than other 2004 cars)
        • 1.4% fail on Emissions not tested (64% worse than other 2004 cars)
      • 0.84% fail on Compression ignition (39% better than other 2004 cars)
        • 0.56% fail on Pre 01/07/2008 Turbo (18% better than other 2004 cars)
        • 0.28% fail on Pre 01/07/2008 Non turbo
  • 5.3% fail on Visibility (33% better than other 2004 cars)
    • 2.8% fail on Washers (17% better than other 2004 cars)
    • 2.5% fail on Wipers (41% better than other 2004 cars)
    • 0.28% fail on View to rear
      • 0.28% fail on Mirrors
  • 5.3% fail on Tyres (24% better than other 2004 cars)
    • 2.8% fail on Tread depth (34% better than other 2004 cars)
    • 2.5% fail on Condition (13% better than other 2004 cars)
  • 4.2% fail on Steering (6.3% better than other 2004 cars)
    • 3.7% fail on Steering linkage components (11% worse than other 2004 cars)
      • 3.7% fail on Track rod end (22% worse than other 2004 cars)
    • 0.28% fail on Steering gear
      • 0.28% fail on Operation
    • 0.28% fail on Electronic power steering
  • 2.2% fail on Identification of the vehicle (2 times worse than other 2004 cars)
    • 2.2% fail on Registration plates (2 times worse than other 2004 cars)
  • 1.1% fail on Seat belts and supplementary restraint systems (62% better than other 2004 cars)
    • 0.84% fail on SRS malfunction indicator lamp (44% better than other 2004 cars)
    • 0.28% fail on Airbags
      • 0.28% fail on Passengers airbag
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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