Jakubeczek63

Hi just got my 2011 w 212 E63 . That is supposed to be my weekend car . It has M156 under the hood.
currently something bad happened to one of electronic modules. After car was jump started thermostat, radiator fan and blower fan stopped working. I checked blower motor and radiator fan and they are working in my brothers E550 , we also checked AC controller and it’s also ok . I’m sure they are connected somehow. All fuses and relays are good . Please help .

homeofstone

The way to know for sure what is wrong is to have someone scan it using a STAR diagnostic scanner or a scanner made to scan all of the car's systems. Cheap scanners cannot do this. Also have you checked all the fuses in all of the fuse banks? (there are several throughout the car}