Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
sorry, i was looking at the roof motor not the pump underneath. it was very wet and quite corroded on the small connecter. the circuit board was also corroted in one area. i cleaned it up pretty good but to no avail. still have the same symptoms. is there a way to test the pump, could there be a blown fuse or fuses . thank you or your help!
You can't really test the pump with the connector that wet but the fuse for it is located in the rear fuse box behind the passenger seat in the storage compartment. You have to pop the floor off of the compartment to access the fuses. There should be a yellow 20 amp fuse #71. There should also be a fuse chart in your spare tire took kit that will have a nice diagram. You could try resetting the pump by disconnecting the battery for a minute and see if that brings back your central locking too. If you hear the pump running, you know the fuse is ok and there will be no need to check it.