Nick-

How did you make out? I have the same situation, almost. I have a '92 300E.

When I'm on the highway at higher rpm's I stay nice and cool. Soon as I hit the brakes or slow down to 1500 rpm air gets warm (balmy warm). I had no air out of the in the center 2 vents. They are now open fully. My mechanic replaced one of the vac pods.

I read Steve Brothertons article (June 2000) in the DIY section and it mentions the compressor control relay system (Klima). I thought of this as a possible culprit. In my case, I don't think that is it.

idle is 600-700rpm (per inst. cluster)
checked the voltage. Charging is good (14v)
Flushed, checked - no leaks found (dye)
R-134 conversion by previous owner, originally R-12 (stamped)

My main cause for concern is the window get fogged at a traffic light during rain or going thru carwash. Seems like the recir is the culprit with me if humidity is getting into the car. Is that what solved your problem?

(Steve:If that is the problem, Can I fix this myself? ie. without pulling the dash?)

thanks,
Preston Worsham

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1992 300E (275,000mi) (SOLD)
1999 Honda Accord EX (sold)
2005 Honda Accord V6 Hybrid