Mercedes-Benz SLK MOT Results

Registered in 2004
64.6% pass rate
from 3,832 tests in 2020
(26% better 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 Mercedes-Benz SLK is unusually good or bad.

  • 16% fail on Suspension (11% better than other 2004 cars)
    • 8.1% fail on Springs (110% worse than other 2004 cars)
      • 8.1% fail on Coil springs (110% worse than other 2004 cars)
        • 8.1% fail on Coil spring (110% worse than other 2004 cars)
        • 0.052% fail on Mounting
      • 0.052% fail on Spring mounting prescribed areas
    • 6.4% fail on Suspension arms
      • 3.9% fail on Ball joint (39% worse than other 2004 cars)
      • 1.9% fail on Pins and bushes
      • 1.0% fail on Ball joint dust cover
      • 0.078% fail on Attachment bracket and mounting
      • 0.052% fail on Suspension arm (85% better than other 2004 cars)
    • 1.8% fail on Sub-frames (2 times worse than other 2004 cars)
      • 1.6% fail on Sub-frame (6 times worse than other 2004 cars)
      • 0.21% fail on Sub-frame mounting prescribed areas
      • 0.026% fail on Attachment bracket and mounting
    • 0.55% fail on Component mounting prescribed areas (69% better than other 2004 cars)
    • 0.47% fail on Shock absorbers (68% better than other 2004 cars)
    • 0.39% fail on Anti-roll bars (94% better than other 2004 cars)
      • 0.16% fail on Linkage ball joint dust cover (91% better than other 2004 cars)
      • 0.078% fail on Linkage ball joints (96% better than other 2004 cars)
      • 0.078% fail on Ball joint dust cover (91% better than other 2004 cars)
      • 0.052% fail on Pins and bushes (84% better than other 2004 cars)
      • 0.026% fail on Linkage
      • 0.026% fail on Linkage pins and bushes
    • 0.39% fail on Other suspension component
      • 0.34% fail on Ball joint
      • 0.026% fail on Other suspension component
      • 0.026% fail on Ball joint dust cover
    • 0.16% fail on Wheel bearings (90% better than other 2004 cars)
    • 0.078% fail on Suspension rods
      • 0.052% fail on Ball joint
      • 0.026% fail on Pins and bushes
    • 0.052% fail on Macpherson strut (79% better than other 2004 cars)
      • 0.052% fail on Attachment bracket and mounting
  • 10% fail on Lamps, reflectors and electrical equipment (49% better than other 2004 cars)
    • 3.0% fail on Headlamps (45% better than other 2004 cars)
      • 2.7% fail on Headlamp (48% better than other 2004 cars)
      • 0.29% fail on Headlamp levelling device
      • 0.026% fail on Dipswitch
    • 3.0% fail on Headlamp aim (35% better than other 2004 cars)
      • 2.8% fail on Headlamp aim (34% better than other 2004 cars)
      • 0.18% fail on Headlamp aim not tested
    • 2.4% fail on Stop lamp (52% better than other 2004 cars)
    • 1.7% fail on Direction indicators (40% better than other 2004 cars)
      • 1.7% fail on Flashing type (40% better than other 2004 cars)
        • 1.4% fail on Individual direction indicators
        • 0.18% fail on All direction indicators
        • 0.13% fail on Side repeaters (87% better than other 2004 cars)
    • 0.99% fail on Position lamps (70% better than other 2004 cars)
      • 0.99% fail on Position lamp (70% better than other 2004 cars)
    • 0.57% fail on Registration plate lamp(s) (80% better than other 2004 cars)
    • 0.47% fail on Front and rear fog lamps (62% better than other 2004 cars)
      • 0.47% fail on Rear fog lamp (62% better than other 2004 cars)
        • 0.47% fail on Rear fog lamp (61% better than other 2004 cars)
    • 0.26% fail on Electrical equipment (72% better than other 2004 cars)
      • 0.13% fail on Horn (75% better than other 2004 cars)
      • 0.078% fail on Battery(ies) (77% better than other 2004 cars)
      • 0.052% fail on Electrical wiring
    • 0.078% fail on Mandatory tell-tales
      • 0.078% fail on Main beam tell-tale (4 times worse than other 2004 cars)
  • 7.8% fail on Brakes (47% better than other 2004 cars)
    • 2.6% fail on Brake performance (65% better than other 2004 cars)
      • 1.3% fail on Service brake performance (57% better than other 2004 cars)
        • 1.3% fail on Rbt (57% better than other 2004 cars)
          • 1.1% fail on Service brake performance (55% better than other 2004 cars)
          • 0.31% fail on Service brake imbalance (53% better than other 2004 cars)
        • 0.026% fail on Plate brake tester
          • 0.026% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.97% fail on Parking brake efficiency (sp) (78% better than other 2004 cars)
        • 0.97% fail on Rbt (sp) (76% better than other 2004 cars)
      • 0.39% fail on Parking brake performance (79% better than other 2004 cars)
        • 0.39% fail on Rbt (78% better than other 2004 cars)
          • 0.21% fail on Parking brake performance (87% better than other 2004 cars)
          • 0.16% fail on Parking (secondary brake performance)
          • 0.052% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.37% fail on Service Brake Efficiency (sp) (65% better than other 2004 cars)
        • 0.37% fail on Rbt (sp) (65% better than other 2004 cars)
          • 0.23% fail on Service brake imbalance (70% better than other 2004 cars)
          • 0.16% fail on Service brake performance
      • 0.13% fail on Brake performance not tested
    • 2.6% fail on Rigid brake pipes (30% better than other 2004 cars)
    • 1.6% fail on Mechanical brake components (57% better than other 2004 cars)
      • 1.1% fail on Brake linings and pads (54% better than other 2004 cars)
        • 1.1% fail on Brake pads (54% better than other 2004 cars)
      • 0.42% fail on Brake discs and drums (67% better than other 2004 cars)
        • 0.39% fail on Brake discs (69% better than other 2004 cars)
        • 0.026% fail on Brake drums
      • 0.052% fail on Brake cables, rods, levers and linkages (81% better than other 2004 cars)
        • 0.052% fail on Cable
    • 1.4% fail on ABS / EBS / ESC
      • 1.1% fail on Electronic stability control (2 times worse than other 2004 cars)
      • 0.42% fail on Anti-lock braking system (62% better than other 2004 cars)
      • 0.026% fail on Electronic braking system
    • 0.34% fail on Service brake pedal or hand lever
      • 0.29% fail on Hand lever
      • 0.052% fail on Pedal
    • 0.29% fail on Parking brake control
      • 0.29% fail on Lever
    • 0.10% fail on Flexible brake hoses (73% better than other 2004 cars)
    • 0.078% fail on Hydraulic systems
      • 0.078% fail on Brake fluid
    • 0.026% fail on Air and vacuum systems
      • 0.026% fail on Leaks
  • 4.6% fail on Tyres (39% better than other 2004 cars)
    • 2.6% fail on Tread depth (44% better than other 2004 cars)
    • 2.1% fail on Condition (30% better than other 2004 cars)
    • 0.026% fail on Size/type
  • 4.1% fail on Noise, emissions and leaks (49% better than other 2004 cars)
    • 4.0% fail on Exhaust emissions (47% better than other 2004 cars)
      • 3.9% fail on Spark ignition (35% better than other 2004 cars)
        • 3.0% fail on Malfunction indicator lamp
        • 1.3% fail on Catalyst emissions (49% better than other 2004 cars)
        • 0.10% fail on Emissions not tested (86% better than other 2004 cars)
        • 0.026% fail on Non catalyst emissions
      • 0.078% fail on Compression ignition (95% better than other 2004 cars)
        • 0.052% fail on Malfunction indicator lamp (89% better than other 2004 cars)
        • 0.026% fail on Emissions not tested
    • 0.18% fail on Fluid leaks (70% better than other 2004 cars)
      • 0.10% fail on Transmission oil leaks
      • 0.052% fail on Engine oil leaks (89% better than other 2004 cars)
      • 0.026% fail on Hydraulic fluid leaks
  • 3.5% fail on Visibility (56% better than other 2004 cars)
    • 1.9% fail on Wipers (54% better than other 2004 cars)
    • 1.5% fail on Washers (58% better than other 2004 cars)
    • 0.13% fail on Bonnet
    • 0.13% fail on Condition of glass
      • 0.13% fail on Windscreen
    • 0.078% fail on View to rear (75% better than other 2004 cars)
      • 0.078% fail on Mirrors (75% better than other 2004 cars)
    • 0.052% fail on Driver's view
  • 2.8% fail on Steering (43% better than other 2004 cars)
    • 1.6% fail on Steering linkage components (57% better than other 2004 cars)
      • 1.5% fail on Track rod end (56% better than other 2004 cars)
      • 0.078% fail on Ball joint
      • 0.026% fail on Drag link end
    • 1.1% fail on Steering gear
      • 1.1% fail on Steering rack
      • 0.026% fail on Operation
    • 0.078% fail on Power steering (76% better than other 2004 cars)
      • 0.026% fail on Operation
      • 0.026% fail on Pump
      • 0.026% fail on Rams
    • 0.078% fail on Steering play
      • 0.078% fail on Steering rack
    • 0.026% fail on Steering wheel
  • 2.0% fail on Body, chassis, structure (78% better than other 2004 cars)
    • 1.1% fail on Exhaust system (67% better than other 2004 cars)
    • 0.23% fail on Seats
      • 0.23% fail on Driver's seat
    • 0.21% fail on Transmission (94% better than other 2004 cars)
      • 0.16% fail on Prop shafts
        • 0.13% fail on Prop shaft (4 times worse than other 2004 cars)
        • 0.026% fail on Bearing housing
      • 0.052% fail on Drive shafts (99% better than other 2004 cars)
        • 0.052% fail on Joints (98% better than other 2004 cars)
    • 0.16% fail on Integral vehicle structure (69% better than other 2004 cars)
      • 0.10% fail on Sub-frame (3 times worse than other 2004 cars)
        • 0.10% fail on Sub-frame condition (3 times worse than other 2004 cars)
      • 0.052% fail on Integral vehicle structure condition (89% better than other 2004 cars)
    • 0.13% fail on Fuel system (76% better than other 2004 cars)
      • 0.10% fail on Pipe
      • 0.026% fail on System
    • 0.10% fail on Body
      • 0.052% fail on Panel
      • 0.052% fail on Other body component
    • 0.026% fail on Chassis
      • 0.026% fail on Chassis condition
    • 0.026% fail on Bumpers
    • 0.026% fail on Floor
    • 0.026% fail on Undertray
  • 1.4% fail on Seat belts and supplementary restraint systems (56% better than other 2004 cars)
    • 1.4% fail on SRS malfunction indicator lamp
    • 0.026% fail on Seat belts
      • 0.026% fail on Condition
  • 0.60% fail on Identification of the vehicle
    • 0.60% fail on Registration plates
  • 0.37% fail on Road Wheels
    • 0.34% fail on Attachment
    • 0.026% fail on Condition
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