W126, BENZ AID - COMMON QUESTIONS AND ANSWERS

A/C turns to heat on downshift '82 300CDT

This question has been driving me crazy since this summer.

The A/C on my car works fine until I am forced to slow down or come to a stop, when this happens the A/C quits blowing cold and starts blowing extremely hot air, hotter than the highest heater function. My theory is that the phenomena happens in conjunction with a downshift in the transmission but beyond that I don't know what to do. The dealer wanted to start throwing parts at it but that can be very expensive without knowing. The compressor seems to be ok.

Help would be appreciated.

mdeming

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Plastic radiator neck kit- Well worth it!

For a couple of years I've seen your notice about the weak Behr radiator neck and the suggestion to fix it with your repair kit. But it would never happen to me, right?

Last week I found what I thought was a loose clamp on the neck of the radiator. When tightening the screw the hose came off in my hand taking off the first inch or so of the neck with it! Digging out the small end the neck from the inside of the hose I ordered the repair kit from you and made a very successful repair.

Thanks for coming up with that kit-you saved me mucho bucks and aggravation I don't need.

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