MOT Results

Honest John Good Garage Guide MOT Results » Mercedes-Benz » S-Class » 1991

Mercedes-Benz S-Class MOT Results

Registered in 1991
71.8% pass rate
from 503 tests in 2021
More MoT Results
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 1991 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

  • 13% fail on Lamps, reflectors and electrical equipment
    • 4.2% fail on Headlamp aim
      • 3.8% fail on Headlamp aim
      • 0.40% fail on Headlamp aim not tested
    • 3.6% fail on Headlamps
      • 3.2% fail on Headlamp
      • 0.40% fail on Headlamp levelling device
    • 2.8% fail on Direction indicators
      • 2.8% fail on Flashing type
        • 1.4% fail on Side repeaters
        • 0.80% fail on All direction indicators
        • 0.80% fail on Individual direction indicators
    • 2.8% fail on Front and rear fog lamps
      • 2.8% fail on Rear fog lamp
        • 2.8% fail on Rear fog lamp
    • 2.6% fail on Stop lamp
    • 0.80% fail on Registration plate lamp(s)
    • 0.80% fail on Electrical equipment
      • 0.40% fail on Electrical wiring
      • 0.40% fail on Horn
    • 0.40% fail on Mandatory tell-tales
      • 0.20% fail on Main beam tell-tale
      • 0.20% fail on Rear fog lamp tell-tale
    • 0.20% fail on Hazard warning
      • 0.20% fail on Switch
  • 8.0% fail on Suspension
    • 2.2% fail on Springs
      • 2.0% fail on Coil springs
        • 2.0% fail on Coil spring (140% worse than other 1991 cars)
      • 0.20% fail on Spring mounting prescribed areas
    • 1.8% fail on Suspension arms
      • 1.2% fail on Ball joint dust cover
      • 0.60% fail on Ball joint
      • 0.20% fail on Pins and bushes
    • 1.8% fail on Anti-roll bars
      • 0.80% fail on Attachment bracket and mounting (5 times worse than other 1991 cars)
      • 0.40% fail on Linkage ball joint dust cover
      • 0.20% fail on Linkage pins and bushes
      • 0.20% fail on Ball joint
      • 0.20% fail on Linkage ball joints
    • 0.99% fail on Component mounting prescribed areas (74% better than other 1991 cars)
    • 0.80% fail on Shock absorbers
    • 0.60% fail on Wheel bearings
    • 0.40% fail on Sub-frames
      • 0.20% fail on Sub-frame
      • 0.20% fail on Sub-frame mounting prescribed areas
    • 0.20% fail on Axles
      • 0.20% fail on Swivel pins and bushes
    • 0.20% fail on Other suspension component
      • 0.20% fail on Pins and bushes
  • 6.2% fail on Brakes (44% better than other 1991 cars)
    • 3.4% fail on Brake performance (57% better than other 1991 cars)
      • 1.4% fail on Service brake performance
        • 1.2% fail on Rbt (62% better than other 1991 cars)
          • 1.2% fail on Service brake performance
          • 0.40% fail on Service brake imbalance
        • 0.20% fail on Plate brake tester
          • 0.20% fail on Service brake efficiency (Trikes, quads and pre-68 vehicles)
      • 1.4% fail on Parking brake efficiency (sp)
        • 1.2% fail on Rbt (sp)
        • 0.20% fail on Decelerometer (sp)
      • 0.99% fail on Service Brake Efficiency (sp) (70% better than other 1991 cars)
        • 0.99% fail on Rbt (sp) (69% better than other 1991 cars)
          • 0.80% fail on Service brake imbalance
          • 0.20% fail on Service brake performance
      • 0.40% fail on Parking brake performance
        • 0.40% fail on Rbt
          • 0.40% fail on Parking brake performance
      • 0.20% fail on Brake performance not tested
    • 1.4% fail on ABS / EBS / ESC (5 times worse than other 1991 cars)
      • 1.4% fail on Anti-lock braking system (5 times worse than other 1991 cars)
    • 0.99% fail on Rigid brake pipes
    • 0.60% fail on Mechanical brake components
      • 0.40% fail on Brake linings and pads
        • 0.40% fail on Brake pads
      • 0.40% fail on Brake discs and drums
        • 0.40% fail on Brake discs
    • 0.20% fail on Hydraulic systems
      • 0.20% fail on Brake fluid
    • 0.20% fail on Flexible brake hoses
    • 0.20% fail on Load sensing valves
  • 5.8% fail on Body, chassis, structure
    • 1.8% fail on Exhaust system
    • 1.6% fail on Seats (170% worse than other 1991 cars)
      • 1.6% fail on Driver's seat (2 times worse than other 1991 cars)
      • 0.99% fail on Passenger's seat (3 times worse than other 1991 cars)
    • 0.99% fail on Fuel system
      • 0.40% fail on Hose
      • 0.40% fail on Pipe
      • 0.20% fail on Tank
      • 0.20% fail on System
    • 0.40% fail on Chassis
      • 0.40% fail on Chassis condition
    • 0.40% fail on Transmission (83% better than other 1991 cars)
      • 0.20% fail on Drive shafts
        • 0.20% fail on Joints
      • 0.20% fail on Prop shafts
        • 0.20% fail on Flexible couplings
    • 0.40% fail on Body
      • 0.20% fail on Panel
      • 0.20% fail on Other body component
    • 0.20% fail on Integral vehicle structure
      • 0.20% fail on Integral vehicle structure condition
    • 0.20% fail on Floor
  • 4.0% fail on Visibility
    • 2.0% fail on Wipers
    • 1.8% fail on Washers
    • 0.40% fail on Bonnet
    • 0.20% fail on Condition of glass
      • 0.20% fail on Windscreen
  • 3.4% fail on Noise, emissions and leaks
    • 2.4% fail on Exhaust emissions
      • 2.0% fail on Spark ignition
        • 1.4% fail on Non catalyst emissions
        • 0.60% fail on Catalyst emissions
      • 0.40% fail on Compression ignition
        • 0.40% fail on Emissions not tested
        • 0.20% fail on Pre 01/07/2008 Non turbo
    • 1.2% fail on Fluid leaks
      • 0.80% fail on Engine oil leaks
      • 0.40% fail on Other leaks
      • 0.20% fail on Transmission oil leaks
  • 3.2% fail on Steering
    • 3.0% fail on Steering linkage components
      • 2.6% fail on Track rod end (110% worse than other 1991 cars)
      • 0.60% fail on Drag link end
      • 0.40% fail on Ball joint
      • 0.20% fail on Locking devices
    • 0.40% fail on Steering play
      • 0.40% fail on Steering box
  • 1.6% fail on Tyres
    • 0.80% fail on Condition
    • 0.80% fail on Tread depth
  • 1.2% fail on Seat belts and supplementary restraint systems
    • 0.99% fail on Seat belts
      • 0.60% fail on Condition
      • 0.20% fail on Prescribed areas
      • 0.20% fail on Requirements
    • 0.20% fail on SRS malfunction indicator lamp
  • 0.40% fail on Identification of the vehicle
    • 0.40% fail on Registration plates
  • 0.40% fail on Road Wheels
    • 0.40% fail on Attachment
  • 0.20% fail on Seat belt installation check
    • 0.20% fail on Anchorages

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