1993 SL500 air conditioner "sudden death" - PeachParts Mercedes-Benz Forum

billwrb · #1 09-02-2007, 10:53 AM

Yesterday the AC worked fine. Today I get only warm/hot air no matter where I set the temperature selector. Before I go somewhere for a repair, I'd like to know what the possible problem might be so that I can at least appear like I know something about what might be wrong. I'd hate to be offered a major repair for a minor problem! Any suggestions? Thanks!

aam · #2 09-02-2007, 01:58 PM

There isn't an easy answer with out you doing some work.
1) check the fuses.
2) Is your compressor running.
3) If compressor is running, put your hand on the low side hose is it cool?
4) If its cool you need parts, and maybe freon.
5) Compressor not running.
Disconnect pressure switch on accumulator and Short for a few seconds.
Is compressor running now?
6) No, you need parts.
7) If yes, you need freon, & maybe parts.

billwrb · #3 09-02-2007, 05:57 PM

Thanks! The spirit is willing, but the brain is weak. I know where the fuses are, I think, but where is the compressor, the pressure switch, and the accumulator? Bill

djblu · #4 09-11-2007, 06:54 AM

I seem to be having the same issue. Anyone post of any pics on location of these items.

billwrb · #5 09-11-2007, 10:18 AM

No responses with photos yet. I keep hoping! Sometimes this forum is great, other times not so much! Guess it depends on who's looking for what!

djblu · #6 09-11-2007, 09:06 PM

hey bill this might help with your wanting to know where things are. http://www.detali.ru/cat/oem_mb1.asp?TP=1&F=129068&M=113%2E961&GA=722%2E624&CT=M&Cat=07N&SID=01

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=129068&M=113%2E961&GA=722%2E624&CT=M&cat=07N&SID=01&SGR=005&SGN=01

I grew up in Mt. Lebanon right outside pittsburgh. Nice to meet u

aam · #7 09-11-2007, 11:11 PM

Quote:

Originally Posted by billwrb

Thanks! The spirit is willing, but the brain is weak. I know where the fuses are, I think, but where is the compressor, the pressure switch, and the accumulator? Bill

Gentlemen.
The compressor is under the power steering pump.
djblu,you did the wipers and removed the headlight on your car.
Good job.
It should be easy for you.
The accumulator/ drier, is behind the left head light.
The pressure switch is on the drier, color black with two connectors.
NOT THE ONE GREEN OR RED with two wires on it, thats the fan switch.