Mercedes-Benz Viano MOT Results

Registered in 2009
65.7% pass rate
from 566 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 2009 cars and highlighted areas where the Mercedes-Benz Viano is unusually good or bad.

  • 16% fail on Lamps, reflectors and electrical equipment
    • 3.7% fail on Headlamps
      • 3.5% fail on Headlamp
      • 0.18% fail on Matched pair
      • 0.18% fail on Headlamp cleaning device
    • 3.7% fail on Direction indicators (110% worse than other 2009 cars)
      • 3.7% fail on Flashing type (110% worse than other 2009 cars)
        • 1.9% fail on Side repeaters (2 times worse than other 2009 cars)
        • 1.6% fail on Individual direction indicators
        • 0.18% fail on All direction indicators
    • 3.5% fail on Stop lamp
    • 3.4% fail on Headlamp aim
      • 2.7% fail on Headlamp aim
      • 0.71% fail on Headlamp aim not tested
    • 2.5% fail on Registration plate lamp(s)
    • 2.1% fail on Front and rear fog lamps (2 times worse than other 2009 cars)
      • 2.1% fail on Rear fog lamp (2 times worse than other 2009 cars)
        • 2.1% fail on Rear fog lamp (2 times worse than other 2009 cars)
    • 1.4% fail on Position lamps
      • 1.4% fail on Position lamp
    • 0.53% fail on Rear reflectors (6 times worse than other 2009 cars)
    • 0.53% fail on Electrical equipment
      • 0.35% fail on Horn
      • 0.18% fail on Trailer electrical socket
  • 11% fail on Brakes (38% worse than other 2009 cars)
    • 7.2% fail on Brake performance (91% worse than other 2009 cars)
      • 4.6% fail on Parking brake efficiency (sp) (190% worse than other 2009 cars)
        • 4.6% fail on Rbt (sp) (2 times worse than other 2009 cars)
      • 3.0% fail on Service brake performance
        • 3.0% fail on Rbt
          • 2.7% fail on Service brake performance
          • 0.88% fail on Service brake imbalance
      • 2.1% fail on Parking brake performance (2 times worse than other 2009 cars)
        • 1.8% fail on Rbt (170% worse than other 2009 cars)
          • 1.2% fail on Parking brake performance
          • 0.53% fail on Parking (secondary brake performance) (6 times worse than other 2009 cars)
        • 0.35% fail on Plate brake tester (18 times worse than other 2009 cars)
          • 0.18% fail on Parking brake performance
          • 0.18% fail on Parking (secondary brake performance)
        • 0.18% fail on Decelerometer
          • 0.18% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.18% fail on Service Brake Efficiency (sp)
        • 0.18% fail on Rbt (sp)
          • 0.18% fail on Service brake performance
          • 0.18% fail on Service brake imbalance
    • 2.8% fail on Mechanical brake components
      • 2.1% fail on Brake linings and pads
        • 2.1% fail on Brake pads
      • 1.1% fail on Brake discs and drums
        • 1.1% fail on Brake discs
    • 1.1% fail on Parking brake control (200% worse than other 2009 cars)
      • 1.1% fail on Lever (2 times worse than other 2009 cars)
    • 0.71% fail on Service brake pedal or hand lever
      • 0.53% fail on Pedal (3 times worse than other 2009 cars)
      • 0.18% fail on Hand lever
    • 0.35% fail on Rigid brake pipes
    • 0.18% fail on Flexible brake hoses
    • 0.18% fail on ABS / EBS / ESC
      • 0.18% fail on Electronic stability control
  • 6.9% fail on Suspension (46% better than other 2009 cars)
    • 4.1% fail on Anti-roll bars
      • 1.2% fail on Linkage pins and bushes (9 times worse than other 2009 cars)
      • 0.88% fail on Linkage ball joint dust cover
      • 0.71% fail on Pins and bushes (9 times worse than other 2009 cars)
      • 0.71% fail on Ball joint dust cover
      • 0.53% fail on Ball joint
      • 0.35% fail on Linkage ball joints
    • 1.6% fail on Springs (62% better than other 2009 cars)
      • 1.6% fail on Coil springs (62% better than other 2009 cars)
        • 1.6% fail on Coil spring (62% better than other 2009 cars)
    • 0.88% fail on Shock absorbers
    • 0.53% fail on Suspension arms (87% better than other 2009 cars)
      • 0.53% fail on Ball joint (73% better than other 2009 cars)
    • 0.18% fail on Air/gas/fluid suspension
      • 0.18% fail on Operation
  • 5.5% fail on Tyres
    • 3.4% fail on Tread depth
    • 2.5% fail on Condition
    • 0.18% fail on Size/type
  • 4.9% fail on Seat belts and supplementary restraint systems (4 times worse than other 2009 cars)
    • 4.8% fail on SRS malfunction indicator lamp (9 times worse than other 2009 cars)
    • 0.18% fail on Seat belts
      • 0.18% fail on Condition
  • 4.4% fail on Noise, emissions and leaks
    • 3.7% fail on Exhaust emissions
      • 2.8% fail on Compression ignition
        • 1.4% fail on Malfunction indicator lamp (2 times worse than other 2009 cars)
        • 1.1% fail on On or after 01/07/2008
        • 0.18% fail on Emission control equipment
          • 0.18% fail on Catalytic converter
        • 0.18% fail on Pre 01/07/2008 Turbo
      • 1.1% fail on Spark ignition
        • 0.88% fail on Malfunction indicator lamp
        • 0.18% fail on Catalyst emissions
    • 0.71% fail on Fluid leaks
      • 0.53% fail on Engine oil leaks
      • 0.18% fail on Transmission oil leaks
  • 3.2% fail on Visibility
    • 1.6% fail on Washers
    • 1.2% fail on Wipers
    • 0.18% fail on Condition of glass
      • 0.18% fail on Windscreen
    • 0.18% fail on View to rear
      • 0.18% fail on Mirrors
  • 3.2% fail on Body, chassis, structure
    • 2.7% fail on Exhaust system
    • 0.18% fail on Fuel system
      • 0.18% fail on Hose
    • 0.18% fail on Bumpers
    • 0.18% fail on Transmission
      • 0.18% fail on Prop shafts
        • 0.18% fail on Joints
    • 0.18% fail on Doors
      • 0.18% fail on Other passenger's door
        • 0.18% fail on Door condition
  • 1.8% fail on Steering
    • 0.88% fail on Steering linkage components
      • 0.88% fail on Track rod end
    • 0.53% fail on Power steering (5 times worse than other 2009 cars)
      • 0.18% fail on Operation
      • 0.18% fail on Pipes and hoses
      • 0.18% fail on Other components
    • 0.35% fail on Steering gear
      • 0.18% fail on Operation
      • 0.18% fail on Steering rack
  • 0.71% fail on Road Wheels
    • 0.71% fail on Attachment
  • 0.18% fail on Identification of the vehicle
    • 0.18% fail on Registration plates

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