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Re: Block of ice under dash??? (archive)
[ Follow Ups ] [ 7-series (E23) Message Board ] [ Msg. Board FAQ ]
Posted by Jon on May 12, 2001 at 23:00:11:

In Reply to: Block of ice under dash??? posted by Winston on May 12, 2001 at 19:30:57:

Winston may be right. The temperature sensor on the evaporator is factory set for 41 deg. If you are getting vent temps lower than 39 or 40 deg. with r12 (cant get those temps with r134a) it may be frezzing up!

Do the exposed metal lines at the firewall under the hood sweat and freezeup with ice?

What was the switch under the dash that you replaced? Expansion valve maybe?

Try running with some heat dialed into the temp selector and see if that helps make it last longer.

I have sent you an Email with other sugjestions if this does not help.

Lets us know!

Jon Jacobs
86 735i
87 325i


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