Question about 1993 Mercedes-Benz E-Class

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Air conditioner isn't blowing cold air

I have a 1993 mercedes benz 300e 4matic.

It's a great car and it runs great, but the air conditioner doens't blow cold air. I have been meaning to fix it but haven't had the time. Now I would like too, but don't know where to begin. It does blow hot air. The heat works great.

I would appreciate any help!!!! Thanks!

Posted by on

  • jochem1v Jul 26, 2009

    I checked the compressor, it seems to be engaged and working properly.

    I think I'm going to refill the refridgerant, is there any specefic way to do this? I've never done it personally. What kind/type of refriderant??

    Do you know if there is a link or webpage to help me?

    THANKS again!!



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Could be a number of things...electrical connections causing the compressor not to run. Turn on AC and turn your thermostat all the way to visually check to see if compressor is engaged and not just free wheeling. Most likely you lost your refridgerant due to leak in the system...would need to find leak and repair then have your system re-charged with refridgerant. Best case scenario...your system just needs a charge of refridgerant due to not having enough.

Posted on Jul 25, 2009

  • Tony Jul 27, 2009

    Recharging the AC system can be extremely dangerous if not done correctly. You can buy a kit at your local auto parts store or Walmart and do it yourself but I would recommend having it done by a certified AC mechanic.



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  • 1619 Answers

SOURCE: 1993 Mercedes 300e heat

Sampling valve for HVAC is probably bad replace.

Posted on Apr 13, 2010

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