Mercedes-Benz SLK MOT Results

Registered in 2004
64.7% pass rate
from 3,522 tests in 2021
(22% 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.

  • 17% fail on Suspension
    • 8.5% fail on Springs (98% worse than other 2004 cars)
      • 8.5% fail on Coil springs (100% worse than other 2004 cars)
        • 8.5% fail on Coil spring (100% worse than other 2004 cars)
    • 5.9% fail on Suspension arms
      • 3.6% fail on Ball joint (46% worse than other 2004 cars)
      • 1.9% fail on Pins and bushes
      • 0.62% fail on Ball joint dust cover
      • 0.14% fail on Suspension arm (67% better than other 2004 cars)
      • 0.028% fail on Attachment bracket and mounting
    • 2.8% fail on Sub-frames (4 times worse than other 2004 cars)
      • 2.3% fail on Sub-frame (7 times worse than other 2004 cars)
      • 0.60% fail on Sub-frame mounting prescribed areas (200% worse than other 2004 cars)
      • 0.028% fail on Attachment bracket and mounting
    • 0.68% fail on Component mounting prescribed areas (70% better than other 2004 cars)
    • 0.51% fail on Anti-roll bars (91% better than other 2004 cars)
      • 0.11% fail on Linkage ball joints (93% better than other 2004 cars)
      • 0.11% fail on Linkage ball joint dust cover (93% better than other 2004 cars)
      • 0.085% fail on Attachment bracket and mounting
      • 0.085% fail on Pins and bushes (75% better than other 2004 cars)
      • 0.085% fail on Linkage (78% better than other 2004 cars)
      • 0.057% fail on Ball joint dust cover (92% better than other 2004 cars)
    • 0.23% fail on Other suspension component
      • 0.11% fail on Ball joint
      • 0.085% fail on Ball joint dust cover
      • 0.028% fail on Other suspension component
    • 0.20% fail on Wheel bearings (87% better than other 2004 cars)
    • 0.20% fail on Shock absorbers (77% better than other 2004 cars)
    • 0.057% fail on Macpherson strut
      • 0.028% fail on Attachment bracket and mounting
      • 0.028% fail on Ball joint
    • 0.057% fail on Suspension rods
      • 0.057% fail on Ball joint
  • 9.7% fail on Lamps, reflectors and electrical equipment (42% better than other 2004 cars)
    • 3.2% fail on Headlamps (42% better than other 2004 cars)
      • 3.0% fail on Headlamp (42% better than other 2004 cars)
      • 0.20% fail on Headlamp levelling device
      • 0.028% fail on Dipswitch
    • 2.8% fail on Headlamp aim (28% better than other 2004 cars)
      • 2.4% fail on Headlamp aim (29% better than other 2004 cars)
      • 0.34% fail on Headlamp aim not tested
    • 2.5% fail on Stop lamp (44% better than other 2004 cars)
    • 2.2% fail on Direction indicators
      • 2.2% fail on Flashing type
        • 1.7% fail on Individual direction indicators
        • 0.28% fail on Side repeaters (71% better than other 2004 cars)
        • 0.20% fail on All direction indicators
        • 0.028% fail on Switch
      • 0.028% fail on Semaphore
        • 0.028% fail on Switch
    • 0.54% fail on Front and rear fog lamps (57% better than other 2004 cars)
      • 0.54% fail on Rear fog lamp (57% better than other 2004 cars)
        • 0.54% fail on Rear fog lamp (57% better than other 2004 cars)
    • 0.51% fail on Registration plate lamp(s) (78% better than other 2004 cars)
    • 0.057% fail on Position lamps
      • 0.028% fail on All position lamps
      • 0.028% fail on Position lamp
    • 0.057% fail on Electrical equipment (92% better than other 2004 cars)
      • 0.057% fail on Battery(ies) (82% better than other 2004 cars)
  • 8.8% fail on Brakes (36% better than other 2004 cars)
    • 3.5% fail on Rigid brake pipes
    • 3.0% fail on Brake performance (60% better than other 2004 cars)
      • 1.3% fail on Service brake performance (57% better than other 2004 cars)
        • 1.3% fail on Rbt (56% better than other 2004 cars)
          • 1.2% fail on Service brake performance (51% better than other 2004 cars)
          • 0.20% fail on Service brake imbalance (67% better than other 2004 cars)
      • 1.2% fail on Parking brake efficiency (sp) (71% better than other 2004 cars)
        • 1.1% fail on Rbt (sp) (71% better than other 2004 cars)
        • 0.057% fail on Decelerometer (sp)
        • 0.028% fail on Gradient tester (sp)
      • 0.57% fail on Service Brake Efficiency (sp) (50% better than other 2004 cars)
        • 0.54% fail on Rbt (sp) (51% better than other 2004 cars)
          • 0.37% fail on Service brake performance
          • 0.17% fail on Service brake imbalance (79% better than other 2004 cars)
        • 0.028% fail on Decelerometer (sp)
      • 0.26% fail on Brake performance not tested
      • 0.26% fail on Parking brake performance (85% better than other 2004 cars)
        • 0.20% fail on Rbt (88% better than other 2004 cars)
          • 0.11% fail on Parking brake performance (92% better than other 2004 cars)
          • 0.085% fail on Parking (secondary brake performance)
        • 0.057% fail on Plate brake tester
          • 0.028% fail on Parking brake performance
          • 0.028% fail on Parking (secondary brake performance)
    • 2.0% fail on ABS / EBS / ESC (37% worse than other 2004 cars)
      • 1.6% fail on Electronic stability control (3 times worse than other 2004 cars)
      • 0.82% fail on Anti-lock braking system
      • 0.057% fail on Electronic braking system
    • 1.2% fail on Mechanical brake components (61% better than other 2004 cars)
      • 0.97% fail on Brake linings and pads (51% better than other 2004 cars)
        • 0.88% fail on Brake pads (55% better than other 2004 cars)
        • 0.085% fail on Brake linings
      • 0.28% fail on Brake discs and drums (75% better than other 2004 cars)
        • 0.28% fail on Brake discs (75% better than other 2004 cars)
      • 0.028% fail on Brake cables, rods, levers and linkages
        • 0.028% fail on Cable
    • 0.28% fail on Parking brake control
      • 0.28% fail on Lever
    • 0.23% fail on Service brake pedal or hand lever
      • 0.11% fail on Pedal
      • 0.11% fail on Hand lever
    • 0.11% fail on Hydraulic systems
      • 0.11% fail on Brake fluid
    • 0.057% fail on Flexible brake hoses (84% better than other 2004 cars)
    • 0.057% fail on Other components and prescribed areas
      • 0.057% fail on Other components
    • 0.028% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.028% fail on Hydraulic brake callipers
  • 4.1% fail on Noise, emissions and leaks (46% better than other 2004 cars)
    • 3.9% fail on Exhaust emissions (45% better than other 2004 cars)
      • 3.9% fail on Spark ignition (36% better than other 2004 cars)
        • 3.1% fail on Malfunction indicator lamp
        • 1.1% fail on Catalyst emissions (58% better than other 2004 cars)
        • 0.23% fail on Emissions not tested (76% better than other 2004 cars)
        • 0.028% fail on Non catalyst emissions
      • 0.17% fail on Compression ignition (87% better than other 2004 cars)
        • 0.057% fail on Emission control equipment
          • 0.028% fail on Catalytic converter
          • 0.028% fail on Oxygen sensor
        • 0.057% fail on Pre 01/07/2008 Non turbo
        • 0.057% fail on Malfunction indicator lamp (83% better than other 2004 cars)
    • 0.17% fail on Fluid leaks (66% better than other 2004 cars)
      • 0.085% fail on Engine oil leaks (79% better than other 2004 cars)
      • 0.057% fail on Transmission oil leaks
      • 0.028% fail on Hydraulic fluid leaks
  • 4.0% fail on Tyres (36% better than other 2004 cars)
    • 2.0% fail on Condition (26% better than other 2004 cars)
    • 2.0% fail on Tread depth (44% better than other 2004 cars)
    • 0.17% fail on Size/type
  • 3.9% fail on Visibility (50% better than other 2004 cars)
    • 2.5% fail on Wipers (40% better than other 2004 cars)
    • 1.6% fail on Washers (57% better than other 2004 cars)
    • 0.11% fail on View to rear
      • 0.11% fail on Mirrors
    • 0.028% fail on Condition of glass
      • 0.028% fail on Windscreen
  • 3.8% fail on Steering
    • 2.3% fail on Steering gear (160% worse than other 2004 cars)
      • 2.2% fail on Steering rack (160% worse than other 2004 cars)
      • 0.028% fail on Operation
    • 1.5% fail on Steering linkage components (55% better than other 2004 cars)
      • 1.3% fail on Track rod end (55% better than other 2004 cars)
      • 0.11% fail on Ball joint
      • 0.028% fail on Drag link end
    • 0.085% fail on Steering play
      • 0.057% fail on Steering rack
      • 0.028% fail on Steering box
    • 0.057% fail on Electronic power steering
    • 0.028% fail on Power steering
      • 0.028% fail on Operation
  • 2.2% fail on Body, chassis, structure (75% better than other 2004 cars)
    • 1.1% fail on Exhaust system (66% better than other 2004 cars)
    • 0.26% fail on Integral vehicle structure (70% better than other 2004 cars)
      • 0.20% fail on Sub-frame (5 times worse than other 2004 cars)
        • 0.20% fail on Sub-frame condition (5 times worse than other 2004 cars)
      • 0.057% fail on Integral vehicle structure condition (93% better than other 2004 cars)
    • 0.23% fail on Transmission (93% better than other 2004 cars)
      • 0.23% fail on Prop shafts
        • 0.14% fail on Prop shaft (2 times worse than other 2004 cars)
        • 0.057% fail on Flexible couplings
        • 0.028% fail on Joints
    • 0.20% fail on Fuel system
      • 0.11% fail on Fuel cap/sealing device
      • 0.085% fail on Pipe
    • 0.17% fail on Body
      • 0.11% fail on Other body component
      • 0.057% fail on Panel
    • 0.11% fail on Bumpers
    • 0.11% fail on Seats
      • 0.11% fail on Driver's seat
    • 0.085% fail on Chassis (83% better than other 2004 cars)
      • 0.085% fail on Chassis condition (83% better than other 2004 cars)
    • 0.057% fail on Doors (89% better than other 2004 cars)
      • 0.028% fail on Driver's door
        • 0.028% fail on Door condition
      • 0.028% fail on Front passenger's door
        • 0.028% fail on Door condition
    • 0.028% fail on Floor
  • 1.8% fail on Seat belts and supplementary restraint systems (44% better than other 2004 cars)
    • 1.7% fail on SRS malfunction indicator lamp
    • 0.085% fail on Seat belts (95% better than other 2004 cars)
      • 0.085% fail on Prescribed areas (91% better than other 2004 cars)
  • 0.34% fail on Identification of the vehicle (51% better than other 2004 cars)
    • 0.34% fail on Registration plates (51% better than other 2004 cars)
  • 0.28% fail on Road Wheels
    • 0.26% fail on Attachment
    • 0.028% fail on Condition
  • 0.028% fail on Seat belt installation check
    • 0.028% fail on Belt(s)/padding
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