We will try again in this article to help you to solve the small problems related to your motor vehicle. We have not too long ago seen how to unblock a fuel door, or a tank cap, in this article we will concentrate on an irritating problem that can be dangerous in bad climate conditions, being a victim of wiper stuck on Mercedes Classe M . And to correct this, we will first try to figure out why the wipers on your Mercedes Classe M remain stuck and, secondly, how to unblock them.

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Why does the wiper of my Mercedes Classe M stay stuck?

So we will start our content page with the reasons of the stuck wipers of your Mercedes Classe M . First of all we will concentrate on the front wipers and in a second time on the rear wiper.

Why are the front wipers on my Mercedes Classe M stuck in up or down position?

We will go through one by one the different problems that can bring about the front wipers of your Mercedes Classe M to get stuck :

  • One of the most common motives of front wipers getting stuck on your Mercedes Classe M is related to the engine unit that drives them, in reality, these engines can, with time, lose power, and eventually need to be changed. You should notice before the total blockage of your windshield wipers that they work much slower.
  • Less common, but it can still happen, is that your front wiper blades are blocked due to an object that prevents the blades from functioning, examine up to the axis of the blades.
  • If it is a lack of lubrication, you will discover that your front wipers are going slower, verify fairly quickly the cause of the problems or else the engines will be forced and damaged.
  • It is possible that the front wipers of your Mercedes Classe M may not operate due to a defective comodo. To check this, you need to disconnect the output wires and connect them together, if the wipers are functioning, the comodo is to blame for the problem.
  • Finally, last possibility, the front wipers of your Mercedes Classe M are blocked due to a power failure, so you will have to verify two parts, the relay and the fuse.

Why is the rear window wiper on my Mercedes Classe M stuck?

Concerning the stuck rear window wiper of your Mercedes Classe M , the origins of your complications are more or less the same. Although there is just one wiper blade at the rear of your motor vehicle, there are still some dedicated parts that can bring about problems just on the rear windshield of your Mercedes Classe M. So, make sure you conduct the same inspections as seen in the previous part of this content page.

What can I do to unlock the wiper on my Mercedes Classe M?

Finally, for this second part, we will see what solutions are available to you to make sure that the wipers on your Mercedes Classe M are unlocked and that they operate properly again.

How to unlock the wipers of my Mercedes Classe M?

If it is for the front windshield wipers or the rear windshield wiper, the solutions will be the same and we will highlight them one after the other in this part, it is up to you to adapt them to the part that concerns you. If you have other blocking problems such as a fuel door stuck on Mercedes Classe M, do not think twice to consult our article on this problem.

  • In this case, you will have to find the engine unit, then disconnect the power cables of this one (take care there must be some of them related to the different speeds of sweeping), then remove the brushes and the linkage. Finally, you will have to unscrew these anchoring points which are generally fixed on silentblocks and reassemble a new wiper motor on your Mercedes Classe M
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  • In this situation, it will be quite simple but expensive to replace your commodo, the part generally costs around 200€, once tested you will be able to disassemble your commodo by removing the cover from the back of the steering wheel then disconnecting it and removing it with the fixing screws, you will just have to reassemble the new one.
  • Mercedes Classe M wiper blocked because of a power failure: In this last situation, you will have to find the origin of the failure (fuse or relay) and replace the defective part

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If you have any further questions about the Mercedes Classe M, do not hesitate to consult our Mercedes Classe M category.