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Mercedes-Benz SEC MOT Results

75.2% pass rate
from 117 tests in 2020
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 pre-1990 cars and highlighted areas where the Mercedes-Benz SEC is unusually good or bad.

  • 15% fail on Brakes
    • 5.1% fail on Brake performance
      • 4.3% fail on Service brake performance
        • 4.3% fail on Rbt
          • 4.3% fail on Service brake performance
          • 0.85% fail on Service brake imbalance
      • 0.85% fail on Service Brake Efficiency (sp)
        • 0.85% fail on Rbt (sp)
          • 0.85% fail on Service brake performance
      • 0.85% fail on Parking brake performance
        • 0.85% fail on Rbt
          • 0.85% fail on Parking (secondary brake performance)
      • 0.85% fail on Parking brake efficiency (sp)
        • 0.85% fail on Rbt (sp)
    • 5.1% fail on ABS / EBS / ESC (37 times worse than other pre-1990 cars)
      • 5.1% fail on Anti-lock braking system (37 times worse than other pre-1990 cars)
    • 3.4% fail on Rigid brake pipes
    • 0.85% fail on Service brake pedal or hand lever
      • 0.85% fail on Hand lever
    • 0.85% fail on Hydraulic systems
      • 0.85% fail on Brake fluid
  • 11% fail on Suspension
    • 6.0% fail on Suspension arms (2 times worse than other pre-1990 cars)
      • 4.3% fail on Ball joint dust cover (6 times worse than other pre-1990 cars)
      • 1.7% fail on Ball joint
    • 2.6% fail on Component mounting prescribed areas
    • 1.7% fail on Springs
      • 1.7% fail on Coil springs
        • 1.7% fail on Coil spring
    • 1.7% fail on Other suspension component
      • 0.85% fail on Ball joint
      • 0.85% fail on Ball joint dust cover
    • 0.85% fail on Sub-frames
      • 0.85% fail on Sub-frame mounting prescribed areas
    • 0.85% fail on Air/gas/fluid suspension
      • 0.85% fail on Levelling valve
  • 6.8% fail on Body, chassis, structure
    • 2.6% fail on Exhaust system
    • 1.7% fail on Integral vehicle structure
      • 1.7% fail on Integral vehicle structure condition
    • 1.7% fail on Seats
      • 1.7% fail on Driver's seat
      • 1.7% fail on Passenger's seat (5 times worse than other pre-1990 cars)
    • 0.85% fail on Fuel system
      • 0.85% fail on Pipe
    • 0.85% fail on Doors
      • 0.85% fail on Front passenger's door
        • 0.85% fail on Door condition
  • 6.0% fail on Lamps, reflectors and electrical equipment
    • 3.4% fail on Headlamps
      • 1.7% fail on Headlamp
      • 1.7% fail on Headlamp levelling device (37 times worse than other pre-1990 cars)
    • 1.7% fail on Front and rear fog lamps
      • 1.7% fail on Rear fog lamp
        • 1.7% fail on Rear fog lamp
    • 0.85% fail on Headlamp aim
      • 0.85% fail on Headlamp aim
    • 0.85% fail on Position lamps
      • 0.85% fail on Position lamp
    • 0.85% fail on Stop lamp
    • 0.85% fail on Hazard warning
      • 0.85% fail on Switch
  • 6.0% fail on Noise, emissions and leaks
    • 6.0% fail on Exhaust emissions
      • 6.0% fail on Spark ignition
        • 3.4% fail on Non catalyst emissions
        • 1.7% fail on Catalyst emissions (5 times worse than other pre-1990 cars)
        • 0.85% fail on Emissions not tested
  • 3.4% fail on Visibility
    • 2.6% fail on Wipers
    • 0.85% fail on Bonnet
    • 0.85% fail on View to rear
      • 0.85% fail on Mirrors
    • 0.85% fail on Washers
  • 1.7% fail on Steering
    • 0.85% fail on Steering gear
      • 0.85% fail on Steering box
    • 0.85% fail on Steering linkage components
      • 0.85% fail on Track rod end
  • 0.85% fail on Identification of the vehicle
    • 0.85% fail on Registration plates
  • 0.85% fail on Seat belts and supplementary restraint systems
    • 0.85% fail on Seat belts
      • 0.85% fail on Condition
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