Question about 1994 Mercedes-Benz C-Class

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Mercedes c180 air con frequent problems. when it does work loud knocking occurs

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Sounds like compressor is going out.

Posted on Apr 13, 2010


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Why does my mercedes c180 '98' only blow air through air vents when i drive the fan does not work? How do I locate problem?

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C180 ac

You may need a mechanic for this.
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1 Answer

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1 Answer

C180 air con not blowing cold air, all else seems to be working, fan, no warning lights etc.

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1 Answer

I own a mercedes 190e 2.5 16v cosworth 1990 model I have noticed that it has developed a knocking sound rather like a grandfather clock. This seems to come from the fuel tank and might be something to with...

You may want to check first if the knocking sound proportionately increases speed or decreases with engine RPM. If it does, that should tell a clue as to where to look for the sound. Could be mechanical. I suggest to isolate the problem first, when it occurs, conditions present when it does etc...

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