PeachParts Mercedes-Benz Forum - View Single Post

LUVMBDiesels · #3 12-04-2007, 07:41 PM

Quote:

Originally Posted by Brian Carlton

There is a removable section of that firewall....right in the middle. I believe two screws will allow you to lift it off. No big issue. I'd definitely recommend it for any work between the two firewalls.

I think it is four bolts. Something like 6mm heads on them. Two are visible at the top of the panel and two are at the bottom. I took mine off when I was having Monovalve leaking issues and never put it back on. It became a one of these days things to do...

Here is what I did:

1) remove the firewall panel

2) remove the clamps on the three hoses going into the passenger compartment

3) remove the clamp from the hose leading from the metal pipe to the aux water pump

4) remove the electrical connectors from the pump and the monovalve.

5) remove the screws holding the monovalve and the pump in place.

6) remove the pump/valve/hoses assembly. The hose going to the pump runs through a small hole in the extra fw. It is a pain to get it to go through that hole.

7) replace all the hoses off the car, rebuilding the pump/valve/hoses assembly

8) replace the assembly, forcing that damn hose through that damn hole!

put it all back together.

Make sure that you replace the small hose going from the pump to the valve... I did not do that the first time of course it blew immediately afterwards...