A Mercedes GLK 320 arrived to us, most of the electronics on the car do not work and the radiator fan is always spinning.
First of all, we connected the diagnostic equipment, and what did I see? I saw that not one electronic unit was communicating.
I started looking for the problem, and first of all I began to check the units responsible for the electronics, starting with the unit located in the trunk. And I found water leaks and moisture in the side pillars.
The search did not take long. The spare wheel compartment was flooded with water.
Après une recherche approfondie, j'ai trouvé de l'oxydation dans le bloc responsable de l'électronique.