Mercedes-Benz SLK MOT Results

Registered in 2008
71.1% pass rate
from 3,398 tests in 2020
(28% better than other 2008 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 2008 cars and highlighted areas where the Mercedes-Benz SLK is unusually good or bad.

  • 14% fail on Suspension
    • 7.2% fail on Springs (51% worse than other 2008 cars)
      • 7.2% fail on Coil springs (52% worse than other 2008 cars)
        • 7.2% fail on Coil spring (53% worse than other 2008 cars)
    • 5.8% fail on Suspension arms (33% worse than other 2008 cars)
      • 4.1% fail on Ball joint (120% worse than other 2008 cars)
      • 1.1% fail on Ball joint dust cover (130% worse than other 2008 cars)
      • 0.97% fail on Pins and bushes (55% better than other 2008 cars)
    • 0.79% fail on Shock absorbers (52% better than other 2008 cars)
    • 0.50% fail on Anti-roll bars (87% better than other 2008 cars)
      • 0.21% fail on Linkage ball joint dust cover (84% better than other 2008 cars)
      • 0.18% fail on Linkage ball joints (86% better than other 2008 cars)
      • 0.059% fail on Ball joint dust cover (90% better than other 2008 cars)
      • 0.029% fail on Pins and bushes
      • 0.029% fail on Linkage
    • 0.26% fail on Other suspension component
      • 0.24% fail on Ball joint
      • 0.029% fail on Ball joint dust cover
    • 0.18% fail on Wheel bearings (77% better than other 2008 cars)
    • 0.088% fail on Suspension rods
      • 0.059% fail on Ball joint
      • 0.029% fail on Ball joint dust cover
    • 0.059% fail on Sub-frames
      • 0.059% fail on Sub-frame
    • 0.029% fail on Macpherson strut
      • 0.029% fail on Macpherson strut
  • 7.2% fail on Brakes (24% better than other 2008 cars)
    • 3.8% fail on Brake performance
      • 2.3% fail on Parking brake efficiency (sp)
        • 2.3% fail on Rbt (sp)
      • 1.3% fail on Service brake performance (44% better than other 2008 cars)
        • 1.2% fail on Rbt (44% better than other 2008 cars)
          • 0.97% fail on Service brake performance (48% better than other 2008 cars)
          • 0.29% fail on Service brake imbalance
        • 0.029% fail on Plate brake tester
          • 0.029% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.38% fail on Parking brake performance (59% better than other 2008 cars)
        • 0.38% fail on Rbt (57% better than other 2008 cars)
          • 0.38% fail on Parking brake performance (51% better than other 2008 cars)
          • 0.029% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.21% fail on Service Brake Efficiency (sp) (62% better than other 2008 cars)
        • 0.21% fail on Rbt (sp) (61% better than other 2008 cars)
          • 0.15% fail on Service brake imbalance (67% better than other 2008 cars)
          • 0.059% fail on Service brake performance
      • 0.12% fail on Brake performance not tested
    • 2.6% fail on Rigid brake pipes (110% worse than other 2008 cars)
    • 1.1% fail on Mechanical brake components (69% better than other 2008 cars)
      • 0.68% fail on Brake linings and pads (73% better than other 2008 cars)
        • 0.68% fail on Brake pads (73% better than other 2008 cars)
      • 0.44% fail on Brake discs and drums (63% better than other 2008 cars)
        • 0.44% fail on Brake discs (62% better than other 2008 cars)
    • 0.12% fail on Service brake pedal or hand lever
      • 0.088% fail on Hand lever
      • 0.029% fail on Pedal
    • 0.12% fail on Flexible brake hoses
    • 0.12% fail on ABS / EBS / ESC (83% better than other 2008 cars)
      • 0.088% fail on Electronic stability control
      • 0.029% fail on Electronic braking system
    • 0.088% fail on Parking brake control (79% better than other 2008 cars)
      • 0.088% fail on Lever (76% better than other 2008 cars)
    • 0.059% fail on Hydraulic systems
      • 0.059% fail on Brake fluid
    • 0.029% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.029% fail on Hydraulic brake cylinder
  • 6.1% fail on Lamps, reflectors and electrical equipment (61% better than other 2008 cars)
    • 2.1% fail on Headlamp aim (43% better than other 2008 cars)
      • 2.0% fail on Headlamp aim (43% better than other 2008 cars)
      • 0.18% fail on Headlamp aim not tested
    • 1.5% fail on Direction indicators
      • 1.5% fail on Flashing type
        • 0.82% fail on Side repeaters
        • 0.65% fail on Individual direction indicators (50% better than other 2008 cars)
        • 0.029% fail on All direction indicators
    • 1.4% fail on Headlamps (61% better than other 2008 cars)
      • 1.1% fail on Headlamp (67% better than other 2008 cars)
      • 0.26% fail on Headlamp levelling device
    • 0.68% fail on Position lamps (77% better than other 2008 cars)
      • 0.65% fail on Position lamp (77% better than other 2008 cars)
      • 0.029% fail on All position lamps
    • 0.59% fail on Stop lamp (86% better than other 2008 cars)
    • 0.32% fail on Registration plate lamp(s) (86% better than other 2008 cars)
    • 0.15% fail on Front and rear fog lamps (73% better than other 2008 cars)
      • 0.15% fail on Rear fog lamp (73% better than other 2008 cars)
        • 0.15% fail on Rear fog lamp (73% better than other 2008 cars)
    • 0.029% fail on Electrical equipment
      • 0.029% fail on Horn
  • 5.3% fail on Tyres (24% better than other 2008 cars)
    • 3.0% fail on Tread depth (29% better than other 2008 cars)
    • 2.5% fail on Condition
    • 0.12% fail on Size/type
  • 1.6% fail on Seat belts and supplementary restraint systems
    • 1.6% fail on SRS malfunction indicator lamp (140% worse than other 2008 cars)
  • 1.4% fail on Visibility (76% better than other 2008 cars)
    • 0.68% fail on Wipers (76% better than other 2008 cars)
    • 0.65% fail on Washers (77% better than other 2008 cars)
    • 0.088% fail on Driver's view
    • 0.059% fail on Condition of glass
      • 0.059% fail on Windscreen
    • 0.029% fail on View to rear
      • 0.029% fail on Mirrors
  • 1.4% fail on Noise, emissions and leaks (73% better than other 2008 cars)
    • 1.3% fail on Exhaust emissions (72% better than other 2008 cars)
      • 1.3% fail on Spark ignition (56% better than other 2008 cars)
        • 0.68% fail on Malfunction indicator lamp (56% better than other 2008 cars)
        • 0.59% fail on Catalyst emissions (59% better than other 2008 cars)
        • 0.15% fail on Emissions not tested
    • 0.059% fail on Fluid leaks (83% better than other 2008 cars)
      • 0.059% fail on Engine oil leaks (79% better than other 2008 cars)
  • 0.74% fail on Body, chassis, structure (87% better than other 2008 cars)
    • 0.62% fail on Exhaust system (71% better than other 2008 cars)
    • 0.059% fail on Undertray
    • 0.029% fail on Bumpers
    • 0.029% fail on Engine mounting
      • 0.029% fail on Bracket
  • 0.65% fail on Steering (71% better than other 2008 cars)
    • 0.56% fail on Steering linkage components (68% better than other 2008 cars)
      • 0.53% fail on Track rod end (66% better than other 2008 cars)
      • 0.029% fail on Ball joint
    • 0.059% fail on Steering gear (82% better than other 2008 cars)
      • 0.059% fail on Steering rack (81% better than other 2008 cars)
    • 0.029% fail on Power steering
      • 0.029% fail on Operation
  • 0.50% fail on Identification of the vehicle
    • 0.50% fail on Registration plates
  • 0.35% fail on Road Wheels
    • 0.18% fail on Condition
    • 0.18% fail on Attachment
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