Unofficialbmw.com

[m78]

Receiver drier, condensor, expansion valve, pressure switch?

It has an upgraded 134 compressor but is not blowing cold.

How much work is it to do this?
_________________
Lachssilber Metallic 203 1988 325i sedan with 200,xxx miles

Top Speed 220 km/h

(OO=00=OO)

[85-325e]

M, it all depends upon how thourough you want to be. The evaporator for me was a pain in the butt. I wasn't able to get it out although I'm sure I could have in the end. I acutally set up a flushing system with the evaporator in the car. I took everything else out and cleaned and flushed it all. I replaced the receiver/dryer, the expansion valve (this was where my problem was anyway), the condender in the front (I blew a hole in that when I was trying to get it goig without doing the work ), and blew out all the hoses. I took the compressor apart, cleaned it in and out. I replaced all o-rings and added the appropriate oil, then used R-12.

The biggest pain, imho, was the evaporator. I did flush it, and it had no leaks. It would have been a crapload easier to have flused it outside of the car, but it was what it was.

See picture of the setup I used to flush that puppy below...

(The yellow hose is sitting above the bucket I used to trap the flush, but it's covered so it wouldn't splash everwhere as I flushed and dried it out):



I used hose clamps to make sure those hoses wouldn't pop off and soak the car with that awful flush stuff...



Here's a picture of the evaporator in place, at least in my car:


_________________
Cosmo - 1985 BMW 325e, Single Owner, 265,000+ ORIGINAL miles and still going strong! But now on the East Coast and the salt air corrosion is eating my beautiful car alive...