Mercedes-Benz SLK MOT Results

Registered in 2003
66.3% pass rate
from 2,582 tests in 2020
(30% better than other 2003 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 2003 cars and highlighted areas where the Mercedes-Benz SLK is unusually good or bad.

  • 15% fail on Lamps, reflectors and electrical equipment (26% better than other 2003 cars)
    • 6.4% fail on Stop lamp
    • 3.7% fail on Headlamps (33% better than other 2003 cars)
      • 3.4% fail on Headlamp (32% better than other 2003 cars)
      • 0.19% fail on Headlamp levelling device
      • 0.077% fail on Dipswitch
    • 3.6% fail on Headlamp aim (26% better than other 2003 cars)
      • 3.4% fail on Headlamp aim (24% better than other 2003 cars)
      • 0.27% fail on Headlamp aim not tested
    • 1.7% fail on Position lamps (50% better than other 2003 cars)
      • 1.7% fail on Position lamp (50% better than other 2003 cars)
      • 0.039% fail on All position lamps
    • 1.5% fail on Direction indicators (39% better than other 2003 cars)
      • 1.5% fail on Flashing type (39% better than other 2003 cars)
        • 1.0% fail on Individual direction indicators
        • 0.23% fail on All direction indicators
        • 0.15% fail on Side repeaters (80% better than other 2003 cars)
        • 0.15% fail on Switch (8 times worse than other 2003 cars)
    • 0.97% fail on Front and rear fog lamps
      • 0.97% fail on Rear fog lamp
        • 0.97% fail on Rear fog lamp
        • 0.077% fail on Switch
    • 0.46% fail on Registration plate lamp(s) (85% better than other 2003 cars)
    • 0.27% fail on Electrical equipment (73% better than other 2003 cars)
      • 0.15% fail on Battery(ies)
      • 0.12% fail on Horn (79% better than other 2003 cars)
    • 0.077% fail on Mandatory tell-tales
      • 0.039% fail on Main beam tell-tale
      • 0.039% fail on Rear fog lamp tell-tale
  • 9.3% fail on Suspension (48% better than other 2003 cars)
    • 5.6% fail on Springs (56% worse than other 2003 cars)
      • 5.3% fail on Coil springs (51% worse than other 2003 cars)
        • 5.3% fail on Coil spring (53% worse than other 2003 cars)
      • 0.23% fail on Spring mounting prescribed areas (3 times worse than other 2003 cars)
    • 2.3% fail on Suspension arms (63% better than other 2003 cars)
      • 1.9% fail on Ball joint (35% better than other 2003 cars)
      • 0.39% fail on Ball joint dust cover (64% better than other 2003 cars)
      • 0.12% fail on Pins and bushes (95% better than other 2003 cars)
      • 0.039% fail on Suspension arm
    • 0.66% fail on Other suspension component
      • 0.50% fail on Ball joint
      • 0.12% fail on Ball joint dust cover
      • 0.039% fail on Pins and bushes
    • 0.54% fail on Wheel bearings (67% better than other 2003 cars)
    • 0.35% fail on Anti-roll bars (94% better than other 2003 cars)
      • 0.15% fail on Pins and bushes
      • 0.077% fail on Linkage pins and bushes (86% better than other 2003 cars)
      • 0.039% fail on Anti-roll bar
      • 0.039% fail on Attachment bracket and mounting
      • 0.039% fail on Linkage
    • 0.35% fail on Component mounting prescribed areas (85% better than other 2003 cars)
    • 0.12% fail on Shock absorbers (92% better than other 2003 cars)
    • 0.12% fail on Sub-frames (76% better than other 2003 cars)
      • 0.077% fail on Sub-frame mounting prescribed areas
      • 0.039% fail on Pins and bushes
  • 8.3% fail on Brakes (45% better than other 2003 cars)
    • 3.4% fail on ABS / EBS / ESC (160% worse than other 2003 cars)
      • 2.6% fail on Electronic stability control (6 times worse than other 2003 cars)
      • 1.4% fail on Anti-lock braking system
      • 0.039% fail on Electronic braking system
    • 2.6% fail on Rigid brake pipes (37% better than other 2003 cars)
    • 2.0% fail on Mechanical brake components (42% better than other 2003 cars)
      • 1.7% fail on Brake linings and pads
        • 1.7% fail on Brake pads
        • 0.077% fail on Brake linings
      • 0.35% fail on Brake discs and drums (72% better than other 2003 cars)
        • 0.35% fail on Brake discs (71% better than other 2003 cars)
    • 1.5% fail on Brake performance (81% better than other 2003 cars)
      • 0.54% fail on Service brake performance (82% better than other 2003 cars)
        • 0.50% fail on Rbt (83% better than other 2003 cars)
          • 0.39% fail on Service brake performance (84% better than other 2003 cars)
          • 0.19% fail on Service brake imbalance (73% better than other 2003 cars)
        • 0.039% fail on Plate brake tester
          • 0.039% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.43% fail on Parking brake efficiency (sp) (90% better than other 2003 cars)
        • 0.43% fail on Rbt (sp) (89% better than other 2003 cars)
      • 0.35% fail on Service Brake Efficiency (sp) (80% better than other 2003 cars)
        • 0.35% fail on Rbt (sp) (79% better than other 2003 cars)
          • 0.23% fail on Service brake performance (62% better than other 2003 cars)
          • 0.12% fail on Service brake imbalance (90% better than other 2003 cars)
      • 0.27% fail on Brake performance not tested
      • 0.15% fail on Parking brake performance (91% better than other 2003 cars)
        • 0.15% fail on Rbt (91% better than other 2003 cars)
          • 0.12% fail on Parking brake performance (92% better than other 2003 cars)
          • 0.039% fail on Parking (secondary brake performance)
    • 0.23% fail on Hydraulic systems
      • 0.19% fail on Brake fluid
      • 0.039% fail on Valves
    • 0.19% fail on Service brake pedal or hand lever (67% better than other 2003 cars)
      • 0.12% fail on Hand lever
      • 0.077% fail on Pedal
    • 0.12% fail on Parking brake control (78% better than other 2003 cars)
      • 0.12% fail on Lever (78% better than other 2003 cars)
    • 0.039% fail on Flexible brake hoses
    • 0.039% fail on Other components and prescribed areas
      • 0.039% fail on Prescribed areas
        • 0.039% fail on Park brake mechanism/associated mountings
  • 4.9% fail on Visibility (41% better than other 2003 cars)
    • 2.8% fail on Wipers (35% better than other 2003 cars)
    • 1.9% fail on Washers (49% better than other 2003 cars)
    • 0.19% fail on Bonnet
    • 0.12% fail on Driver's view
    • 0.077% fail on Condition of glass
      • 0.077% fail on Windscreen
  • 4.5% fail on Noise, emissions and leaks (46% better than other 2003 cars)
    • 4.2% fail on Exhaust emissions (46% better than other 2003 cars)
      • 4.1% fail on Spark ignition (38% better than other 2003 cars)
        • 3.1% fail on Malfunction indicator lamp
        • 0.97% fail on Catalyst emissions (69% better than other 2003 cars)
        • 0.31% fail on Emissions not tested (66% better than other 2003 cars)
      • 0.12% fail on Compression ignition (91% better than other 2003 cars)
        • 0.12% fail on Malfunction indicator lamp
    • 0.27% fail on Fluid leaks (59% better than other 2003 cars)
      • 0.15% fail on Engine oil leaks (71% better than other 2003 cars)
      • 0.12% fail on Other leaks
  • 4.2% fail on Tyres (42% better than other 2003 cars)
    • 2.6% fail on Tread depth (43% better than other 2003 cars)
    • 1.7% fail on Condition (41% better than other 2003 cars)
    • 0.077% fail on Size/type
  • 2.3% fail on Body, chassis, structure (76% better than other 2003 cars)
    • 0.85% fail on Exhaust system (77% better than other 2003 cars)
    • 0.39% fail on Seats
      • 0.39% fail on Driver's seat (160% worse than other 2003 cars)
    • 0.23% fail on Integral vehicle structure (63% better than other 2003 cars)
      • 0.19% fail on Integral vehicle structure condition (68% better than other 2003 cars)
      • 0.039% fail on Sub-frame
        • 0.039% fail on Sub-frame condition
    • 0.23% fail on Transmission (94% better than other 2003 cars)
      • 0.23% fail on Prop shafts
        • 0.19% fail on Prop shaft (7 times worse than other 2003 cars)
        • 0.039% fail on Bearing housing
    • 0.19% fail on Fuel system (68% better than other 2003 cars)
      • 0.12% fail on Pipe
      • 0.077% fail on Fuel cap/sealing device
    • 0.19% fail on Bumpers
    • 0.12% fail on Boot lid
      • 0.077% fail on Boot lid condition
      • 0.039% fail on Other boot lid component
    • 0.077% fail on Chassis (84% better than other 2003 cars)
      • 0.077% fail on Chassis condition (84% better than other 2003 cars)
    • 0.039% fail on Body
      • 0.039% fail on Panel
    • 0.039% fail on Doors
      • 0.039% fail on Front passenger's door
        • 0.039% fail on Door condition
    • 0.039% fail on Floor
    • 0.039% fail on Undertray
  • 1.6% fail on Steering (68% better than other 2003 cars)
    • 1.2% fail on Steering linkage components (67% better than other 2003 cars)
      • 1.0% fail on Track rod end (69% better than other 2003 cars)
      • 0.15% fail on Ball joint
      • 0.039% fail on Drag link end
    • 0.12% fail on Steering wheel (4 times worse than other 2003 cars)
    • 0.077% fail on Steering play
      • 0.039% fail on Steering box
      • 0.039% fail on Steering rack
    • 0.039% fail on Steering gear
      • 0.039% fail on Steering rack
    • 0.039% fail on Power steering
      • 0.039% fail on Rams
    • 0.039% fail on Steering column
    • 0.039% fail on Steering coupling
      • 0.039% fail on Universal joint
  • 0.74% fail on Seat belts and supplementary restraint systems (77% better than other 2003 cars)
    • 0.70% fail on SRS malfunction indicator lamp (53% better than other 2003 cars)
    • 0.039% fail on Seat belts
      • 0.039% fail on Condition
  • 0.35% fail on Identification of the vehicle (62% better than other 2003 cars)
    • 0.35% fail on Registration plates (62% better than other 2003 cars)
  • 0.35% fail on Road Wheels
    • 0.31% fail on Attachment
    • 0.039% fail on Condition

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