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Old 11-05-2002, 11:01 AM
Loves his wagon
Join Date: Dec 2001
Location: Scott, Illinois
Posts: 34
Climate control blows cold air

My automatic climate control seems to have a mind of it's own. Sometimes it blows hot for awhile then it turs cool. I have the temperature dial all the way toward the hot position, the push-button on EC, and the fan on auto. It starts off hot then cools down and doesn't get hot again till it start messing with push-buttons. I can turn it off then turn it back on and it starts the cycle all over again. Also I can turn down the temp and turn it back up and it will also start the cycle over. I replaced several peices of foam piping behind the glove compartment that is connected to the themostat, but it didn't solve the problem. Could this be a problem asscociated with the mono-valve.
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Old 11-05-2002, 02:15 PM
Steve Gutman's Avatar
Registered User
Join Date: Feb 2002
Location: Chicago, IL
Posts: 492
Just change the Monovalve

I had similar problems and changed the Monovalve in 10 minutes. Fast and easy. Try that next.

1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si
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Old 11-05-2002, 07:25 PM
Registered User
Join Date: Oct 2002
Location: Colorado Springs
Posts: 481
got to agree

I had the exact symptoms and checked the monovalve sure enough it was torn. This is an easy job and very cheap @$30 for the part here is a good link for a 126 chassis
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