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Old 11-01-2012, 04:11 PM
Air&Road Air&Road is offline
Posting since Jan 2000
 
Join Date: Sep 2011
Posts: 7,328
Quote:
Originally Posted by Philoprof View Post
I'm replacing the compressor and receiver/dryer on my 380sl, and was wondering whether it's really necessary to replace the expansion valve, too, as I haven't had one of those catastrophic failures that contaminates the system.

Obviously, I'd rather not replace the valve if the odds are good that it's OK, since it looks like a harder job than replacing the compressor.

Thanks in advance for the advice.

Bill

If you are replacing the compressor due to leaking or rotational sensor problems rather than internal failure, you can leave the expansion valve alone. The only time it needs to be replaced is if it is leaking, not working properly or if the compressor has failed in a way that has strewn debris throughout the system.

Best of luck with it.
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