Mercedes-Benz S-Class MOT Results

Registered in 1988

74.1% pass rate

from 424 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 1988 cars and highlighted areas where the Mercedes-Benz S-Class is unusually good or bad.

13% fail on Lamps, reflectors and electrical equipment
- 5.2% fail on Headlamp aim
  - 5.2% fail on Headlamp aim
- 2.8% fail on Direction indicators
  - 2.8% fail on Flashing type
    - 2.4% fail on Individual direction indicators
    - 0.47% fail on Side repeaters
- 2.8% fail on Front and rear fog lamps
  - 2.8% fail on Rear fog lamp
    - 2.6% fail on Rear fog lamp
    - 0.24% fail on Switch
- 2.4% fail on Headlamps
  - 1.9% fail on Headlamp
  - 0.47% fail on Headlamp levelling device (6 times worse than other 1988 cars)
- 1.7% fail on Stop lamp
- 1.4% fail on Registration plate lamp(s)
- 1.4% fail on Electrical equipment
  - 0.94% fail on Battery(ies)
  - 0.47% fail on Horn
- 0.47% fail on Position lamps
  - 0.47% fail on Position lamp
- 0.24% fail on Hazard warning
  - 0.24% fail on Switch
- 0.24% fail on Mandatory tell-tales
  - 0.24% fail on Rear fog lamp tell-tale
7.8% fail on Suspension
- 4.2% fail on Suspension arms
  - 1.7% fail on Ball joint dust cover
  - 1.4% fail on Ball joint
  - 0.94% fail on Suspension arm (3 times worse than other 1988 cars)
  - 0.71% fail on Pins and bushes
- 2.1% fail on Component mounting prescribed areas
- 0.94% fail on Anti-roll bars
  - 0.24% fail on Attachment bracket and mounting
  - 0.24% fail on Pins and bushes
  - 0.24% fail on Linkage
  - 0.24% fail on Linkage ball joint dust cover
  - 0.24% fail on Linkage attachment bracket and mounting
- 0.71% fail on Wheel bearings
- 0.47% fail on Sub-frames
  - 0.24% fail on Attachment bracket and mounting
  - 0.24% fail on Sub-frame mounting prescribed areas
- 0.24% fail on Springs
  - 0.24% fail on Coil springs
    - 0.24% fail on Coil spring
- 0.24% fail on Shock absorbers
- 0.24% fail on Macpherson strut
  - 0.24% fail on Ball joint dust cover
- 0.24% fail on Suspension rods
  - 0.24% fail on Ball joint dust cover
- 0.24% fail on Other suspension component
  - 0.24% fail on Ball joint dust cover
7.3% fail on Brakes
- 4.7% fail on Brake performance
  - 3.3% fail on Service brake performance
    - 2.8% fail on Rbt
      - 2.6% fail on Service brake performance
      - 0.47% fail on Service brake imbalance
    - 0.24% fail on Decelerometer
      - 0.24% fail on Service brake performance
    - 0.24% fail on Plate brake tester
      - 0.24% fail on Service brake performance
  - 1.2% fail on Service Brake Efficiency (sp)
    - 1.2% fail on Rbt (sp)
      - 0.94% fail on Service brake imbalance
      - 0.47% fail on Service brake performance
  - 1.2% fail on Parking brake efficiency (sp)
    - 0.94% fail on Rbt (sp)
    - 0.24% fail on Decelerometer (sp)
  - 0.47% fail on Parking brake performance
    - 0.24% fail on Rbt
      - 0.24% fail on Parking brake performance
    - 0.24% fail on Plate brake tester
      - 0.24% fail on Parking brake performance
- 1.2% fail on ABS / EBS / ESC (4 times worse than other 1988 cars)
  - 1.2% fail on Anti-lock braking system (4 times worse than other 1988 cars)
- 0.71% fail on Rigid brake pipes
- 0.47% fail on Hydraulic systems
  - 0.47% fail on Brake fluid
- 0.24% fail on Parking brake control
  - 0.24% fail on Lever
- 0.24% fail on Brake actuators (including spring brakes or hydraulic cylinders)
  - 0.24% fail on Hydraulic brake callipers
- 0.24% fail on Load sensing valves
- 0.24% fail on Mechanical brake components
  - 0.24% fail on Brake linings and pads
    - 0.24% fail on Brake pads
6.4% fail on Visibility
- 4.5% fail on Washers
- 2.4% fail on Wipers
5.2% fail on Body, chassis, structure
- 2.6% fail on Exhaust system
- 0.94% fail on Chassis
  - 0.94% fail on Chassis condition
- 0.71% fail on Integral vehicle structure
  - 0.71% fail on Integral vehicle structure condition
- 0.71% fail on Fuel system
  - 0.24% fail on Tank
  - 0.24% fail on Pipe
  - 0.24% fail on Fuel cap/sealing device
- 0.47% fail on Transmission
  - 0.47% fail on Prop shafts
    - 0.47% fail on Flexible couplings (18 times worse than other 1988 cars)
- 0.47% fail on Body
  - 0.24% fail on Panel
  - 0.24% fail on Other body component
- 0.47% fail on Floor
- 0.24% fail on Bumpers
- 0.24% fail on Seats
  - 0.24% fail on Driver's seat
  - 0.24% fail on Passenger's seat
3.1% fail on Noise, emissions and leaks
- 3.1% fail on Exhaust emissions
  - 2.4% fail on Spark ignition
    - 1.7% fail on Non catalyst emissions
    - 0.47% fail on Catalyst emissions
    - 0.24% fail on Emissions not tested
  - 0.71% fail on Compression ignition
    - 0.71% fail on Pre 01/07/2008 Turbo
2.1% fail on Tyres
- 1.7% fail on Condition
- 0.47% fail on Tread depth
1.4% fail on Steering (64% better than other 1988 cars)
- 1.2% fail on Steering linkage components
  - 0.94% fail on Track rod end
  - 0.47% fail on Drag link end
- 0.24% fail on Power steering
  - 0.24% fail on Pipes and hoses
0.47% fail on Identification of the vehicle
- 0.47% fail on Registration plates
0.24% fail on Seat belts and supplementary restraint systems
- 0.24% fail on Seat belts
  - 0.24% fail on Condition
0.24% fail on Road Wheels
- 0.24% fail on Attachment