Mercedes-Benz Viano reliability

On certain diesel engines the 'O' ring may not have been produced to the correct specification. This may allow oil to leak and contaminate the environment. If excessive oil is lost engine damage may occur.

Fix: On affected vehicles replace the chain tensioner sealing ring.

Recalled models: VIANO · 5,358 vehicles

In a situation where the window airbag is deployed the trim that covers the airbag may not stay in a safe position and as such could present an additional risk of injury to the occupant.

Fix: Recall the vehicles that are likely to be affected to replace the A-pillar trim.

Recalled models: VIANO · 16 vehicles

The bolts connecting the suspension strut lower mounting to the steering knuckle may shear. Should this occur the stability of the vehicle could be affected.

Fix: Recall the vehicles that are likely to be affected to replace the bolts and nuts that connect the suspension strut lower mounting to the steering knuckle.

Recalled models: VIANO · 2 vehicles

A fuel leak may occur from the area of the fuel drain opening in the fuel filters which leaks onto the road.

Fix: Recall the vehicles that are likely to be affected to check the fuel filter and replace where necessary.

Recalled models: VIANO · 62 vehicles

In certain arduous operating conditions it is possible that the air conditioning fan relay could overload and in the worst case could catch fire.

Fix: Recall the vehicles that are likely to be affected to replace the air conditioning fan relay with a modified component.

Recalled models: VIANO · 2,924 vehicles

On vehicles fitted with the OM646 engine it is possible that an Air Conditioning (AC) hose bracket could chaff the wiring harness for the three phase alternator. If this is not rectified there is a possible risk of a short circuit which may result in a fire.

Fix: Recall all affected vehicles to check for damage to the wiring and replacement if found damaged plus the installation of an additional spacer clamp.

Recalled models: VIANO · 10,805 vehicles

It is possible that vehicles fitted with integral heaters within the fuel filter could suffer a leak in the upper plug area. This leakage should be identified to the driver by the smell of the diesel however if action is not taken to address the issue the issue could result in fuel escaping onto the road surface.

Fix: Recall all affected vehicles and replace the fuel filter.

Recalled models: VIANO · 108 vehicles

The rear vent window may have detached itself from both front mounts. It is therefore possible that the rear vent window detaches itself from the body.

Fix: Recall the vehicles that are likely to be affected to exchange the rear vent window/both rear vent windows.

Recalled models: VIANO · 151 vehicles

Oil may leak from the bottom of the engine oil filler neck. If not rectified this could lead to oil leaking onto the road surface and/or engine damage due to insufficient lubrication.

Fix: Recall the vehicles that are likely to be affected to replace the engine oil filler neck.

Recalled models: VIANO · 260 vehicles

It has been identified that the pane of the rear vent window could work loose from both of the front supports. As a result it is possible that the window could detach from the body and fall away.

Fix: Recalled vehicles will have both rear vent windows replaced.

Recalled models: VIANO · 731 vehicles

It has been identified that the under floor mounted spare wheel may detach from the vehicle due to breakage of the spare wheel support.

Fix: Recalled vehicles will have the spare wheel carrier replaced.

Recalled models: VIANO · 22,604 vehicles

It has been identified that the potential exists for a material defect to be present in the retaining clip for the outer cable of the left hand rear parking brake. Should the retaining clip fail the outer cable would become detached resulting in holding effect of the parking brake being lost.

Fix: Recalled vehicles will have the left hand rear parking brake cable including the clips replaced.

Recalled models: VIANO · 362 vehicles

The window air bags may not fully deploy.

Fix: Recall the vehicles that are likely to be affected to replace the window air bags.

Recalled models: VIANO · 18 vehicles

On a limited number of vehicles the fuel tank may not be meeting the required manufacturing safety standards and in the event of an accident could result in a fuel leak.

Fix: The recalled vehicles will have the fuel tank replaced with a quality assured unit.

Recalled models: VIANO · 79 vehicles

It has been identified that due to incorrect software transmission the full functionality of the vehicle's electronics cannot be guaranteed.

Fix: Recalled vehicles will have the SCN coding rewritten.

Recalled models: VIANO · 13 vehicles

It has been identified that subject vehicles have been fitted with an incorrect brake master cylinder. This has the effect of the brake pedal having to travel further before the brakes take effect.

Fix: Recalled vehicles will have the brake master cylinder replaced.

Recalled models: VIANO · 321 vehicles

It has been identified that a fuel leak may occur due to the possible detachment of the fuel line from the fuel tank to the engine.

Fix: Recalled vehicles will have the fuel line replaced.

Recalled models: VIANO · 138 vehicles

The engine may stop as a result of the fuel feed lines from tank to engine leaking and or separating because they were not manufactured to the correct specification.

Fix: Recall the vehicles that are likely to be affected to replace the fuel feed lines.

Recalled models: VIANO · 1 vehicles

In the event of the vehicle being involved in an accident fuel may leak from the fuel tank.

Fix: Recalled vehicles will have the production date of the fuel tank checked. The tank will be replaced if found to be within the affected range.

Recalled models: VIANO · 72 vehicles

It has been identified that the possibility exists that a fuel line may not have been fitted correctly and may leak.

Fix: Recalled vehicles will be checked for the presence of fuel leaks if evident the fuel line and fittings will be replaced.

Recalled models: VIANO · 102 vehicles

It has been identified that due to a faulty control unit the airbag might not deploy in the event of a collision.

Fix: Recalled vehicles will be fitted with a modified control unit.

Recalled models: VIANO · 3,203 vehicles

The battery to starter motor cable is routed close to the exhaust. In some circumstances the insulation might melt.

Fix: Recall the vehicles that are likely to be affected to fit an additional cable tie to the battery to starter motor cable.

Recalled models: VIANO · 77 vehicles

The clevis pin which secures the brake master cylinder push rod to the brake pedal cross shaft may become detached due to the possible non-fitment of the securing clip.

Fix: Likely to be affected vehicles will be checked for the installation of the securing clip. Should it be found that the securing clip has not been fitted one will be installed.

Recalled models: VIANO · 9,212 vehicles

It is possible that the engine speed may reduce or in extreme cases shut down due to a software error in the engine management unit

Fix: Recall affected vehicles and install revised software in the control unit. In most cases this will resolve the problem. In isolated cases it may be necessary to replace the control unit.

Recalled models: VIANO · 592 vehicles

Mounting of the foot operated parking brake pedal may permit the mounting to become loose and in extreme cases the assembly may become detached from the mounting bracket.

Fix: Recall the affected vehicles and replace the pedal assembly with a quality assured component.

Recalled models: VIANO · 779 vehicles