Hello all,the window on my 850 drops the last part of its travel with a clunk. Also, can anyone advise of the symptoms of a faulty evaporater and are the new ones longer lasting? Any ideas of the above problems would be appreciated. regards David

I should state that on a cooler day the aircon continues to work (when it doesnt really matter), but on a really hot day , the aircon only works for 10 minutes and then blows hot air...arrgh. Am i right to understand that the use of synthetic oil alleviates problems with the blocking of the flame trap/pcv system? David

You will need to puyll the door panel off to fix your window. The 850s have a tendancy to have the lower or rear guide fall off. Easy to replace.

The AC needs to have dye added to it to find out where it is leaking. There is a very small view hole close to the passengers feet where a black light can verify that it leaks there. Most often, that is the problem.

The "new" evaps are not any better than the old ones, but new means it will work for at least 8 years???
If the clutch is a problem, there is a cheap fix over on Volvospeed:

http://volvospeed.com/vs_forum/index.php?showtopic=80181


Klaus
--
The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)

Your a/c problems sound more like a compressor clutch with excessive air gap. You can replace the clutch and compressor complete or you can try pulling the front of the clutch off and reducing the air gap by reducing the shim pack that is in there.

Mark

Signs of a failing Evaporator include loss of freon. It could take a day or it could take a month to leak down so low that the compressor will either not turn on or it will start to cycle on and off every few seconds. It'll work great when the AC is running and there is freon, no temperature change until the system gets low on pressure.

As far as the window, I've got no idea! Sorry!