Mercedes-Benz Viano MOT Results

Registered in 2012
69.5% pass rate
from 646 tests in 2021
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 2012 cars and highlighted areas where the Mercedes-Benz Viano is unusually good or bad.

  • 13% fail on Lamps, reflectors and electrical equipment (38% worse than other 2012 cars)
    • 7.3% fail on Direction indicators (3 times worse than other 2012 cars)
      • 7.3% fail on Flashing type (3 times worse than other 2012 cars)
        • 5.3% fail on Side repeaters (6 times worse than other 2012 cars)
        • 2.8% fail on Individual direction indicators (190% worse than other 2012 cars)
        • 0.15% fail on All direction indicators
    • 4.0% fail on Headlamp aim
      • 4.0% fail on Headlamp aim (81% worse than other 2012 cars)
    • 1.7% fail on Stop lamp
    • 1.2% fail on Headlamps
      • 0.93% fail on Headlamp
      • 0.31% fail on Headlamp cleaning device
    • 0.93% fail on Front and rear fog lamps
      • 0.93% fail on Rear fog lamp
        • 0.93% fail on Rear fog lamp
    • 0.15% fail on Position lamps
      • 0.15% fail on Position lamp
    • 0.15% fail on Reversing lamps
      • 0.15% fail on Reversing lamps
    • 0.15% fail on Registration plate lamp(s)
  • 9.1% fail on Brakes (53% worse than other 2012 cars)
    • 6.7% fail on Brake performance (150% worse than other 2012 cars)
      • 5.9% fail on Parking brake efficiency (sp) (4 times worse than other 2012 cars)
        • 5.9% fail on Rbt (sp) (5 times worse than other 2012 cars)
      • 2.5% fail on Parking brake performance (4 times worse than other 2012 cars)
        • 2.3% fail on Rbt (4 times worse than other 2012 cars)
          • 1.9% fail on Parking brake performance (3 times worse than other 2012 cars)
          • 0.31% fail on Parking (secondary brake performance) (6 times worse than other 2012 cars)
          • 0.15% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
        • 0.15% fail on Decelerometer
          • 0.15% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
      • 0.77% fail on Service brake performance
        • 0.77% fail on Rbt
          • 0.62% fail on Service brake performance
          • 0.15% fail on Service brake imbalance
      • 0.62% fail on Service Brake Efficiency (sp)
        • 0.62% fail on Rbt (sp)
          • 0.46% fail on Service brake performance
          • 0.15% fail on Service brake imbalance
    • 1.5% fail on Mechanical brake components
      • 0.93% fail on Brake linings and pads
        • 0.93% fail on Brake pads
      • 0.46% fail on Brake discs and drums
        • 0.46% fail on Brake discs
      • 0.15% fail on Brake cables, rods, levers and linkages
        • 0.15% fail on Lever
    • 0.93% fail on Parking brake control (2 times worse than other 2012 cars)
      • 0.93% fail on Lever (3 times worse than other 2012 cars)
    • 0.46% fail on ABS / EBS / ESC
      • 0.46% fail on Electronic stability control
      • 0.15% fail on Anti-lock braking system
    • 0.31% fail on Service brake pedal or hand lever
      • 0.15% fail on Pedal
      • 0.15% fail on Hand lever
    • 0.31% fail on Flexible brake hoses
    • 0.15% fail on Hydraulic systems
      • 0.15% fail on Master cylinder
  • 7.3% fail on Tyres
    • 4.8% fail on Condition (80% worse than other 2012 cars)
    • 2.9% fail on Tread depth
    • 0.46% fail on Size/type
  • 4.6% fail on Noise, emissions and leaks (130% worse than other 2012 cars)
    • 4.3% fail on Exhaust emissions (120% worse than other 2012 cars)
      • 3.7% fail on Compression ignition (4 times worse than other 2012 cars)
        • 2.0% fail on Malfunction indicator lamp (4 times worse than other 2012 cars)
        • 1.5% fail on On or after 01/07/2008 (5 times worse than other 2012 cars)
        • 0.15% fail on On or after 01/01/2014
      • 0.62% fail on Spark ignition
        • 0.62% fail on Malfunction indicator lamp
    • 0.31% fail on Fluid leaks
      • 0.15% fail on Engine oil leaks
      • 0.15% fail on Other leaks
  • 4.2% fail on Suspension (55% better than other 2012 cars)
    • 2.2% fail on Suspension arms
      • 1.4% fail on Ball joint
      • 0.62% fail on Pins and bushes
      • 0.15% fail on Ball joint dust cover
    • 1.2% fail on Anti-roll bars
      • 0.62% fail on Linkage pins and bushes (10 times worse than other 2012 cars)
      • 0.62% fail on Linkage ball joint dust cover
      • 0.15% fail on Ball joint dust cover
    • 0.62% fail on Springs (86% better than other 2012 cars)
      • 0.62% fail on Coil springs (86% better than other 2012 cars)
        • 0.62% fail on Coil spring (86% better than other 2012 cars)
    • 0.31% fail on Air/gas/fluid suspension (33 times worse than other 2012 cars)
      • 0.31% fail on Operation (129 times worse than other 2012 cars)
    • 0.15% fail on Shock absorbers
  • 4.0% fail on Seat belts and supplementary restraint systems (5 times worse than other 2012 cars)
    • 3.9% fail on SRS malfunction indicator lamp (9 times worse than other 2012 cars)
    • 0.15% fail on Seat belts
      • 0.15% fail on Condition
  • 3.6% fail on Visibility
    • 2.2% fail on Washers
    • 0.93% fail on Wipers
    • 0.31% fail on Condition of glass
      • 0.31% fail on Windscreen
    • 0.15% fail on View to rear
      • 0.15% fail on Mirrors
  • 2.5% fail on Body, chassis, structure
    • 1.4% fail on Exhaust system
    • 0.46% fail on Seats (8 times worse than other 2012 cars)
      • 0.46% fail on Passenger's seat (22 times worse than other 2012 cars)
    • 0.31% fail on Doors
      • 0.31% fail on Other passenger's door
        • 0.31% fail on Door condition (5 times worse than other 2012 cars)
    • 0.15% fail on Fuel system
      • 0.15% fail on Fuel cap/sealing device
    • 0.15% fail on Transmission
      • 0.15% fail on Prop shafts
        • 0.15% fail on Prop shaft
    • 0.15% fail on Body
      • 0.15% fail on Other body component
  • 0.77% fail on Steering
    • 0.31% fail on Steering linkage components
      • 0.31% fail on Track rod end
    • 0.15% fail on Steering gear
      • 0.15% fail on Steering rack
    • 0.15% fail on Power steering
      • 0.15% fail on Operation
    • 0.15% fail on Steering play
      • 0.15% fail on Steering rack
  • 0.46% fail on Identification of the vehicle
    • 0.46% fail on Registration plates
  • 0.46% fail on Road Wheels
    • 0.46% fail on Attachment

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