Hello, I have a 95 E 320. I am here looking for help to fix a few annoying things on my car. I bought it a couple years ago and have no manual. It has been making me crazy lately the dome light doesn't want to go off, radio has no sound, door locks quit working and the headlights shut off when you use the right blinker. But other than that it is a great car. So anyone who has any advise please share. There are no mechanics who have a clue about Mercedes around me so that is not an option.

Sarah

 

95% its the PSE.
This can be changed DIY but is quite expensive. 300USD guess.

The PSE controls the dome light, bulb warning, rear screen, security and door locks. When it fails it usually blocks the CAN which is the digital highway that communicates between devices on the car and can therefore impact other circuit.

What happens if you unplug the multi electrical connector to the PSE. This will make all the systems I state inoperative BUT does it resolve the headlamp/blinker issue?

I suggest you respond to this question before changing the unit.

Be advised that MANY other things can also impact the CAN. These types of fault CAN BE very difficult to resolve in a forum like this with limited data.

Stuart.