C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Need A/C help!

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Old Jun 21, 2014 | 05:38 PM
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Michael1975's Avatar
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2002 Mercedes C230
Need A/C help!

I have a 2002 C230. Last week, my car started making noises kinda like someone threw a couple wrenches in a dryer. I assumed the tensioner was going, but it didn't sound quite like any tensioner I have heard before. Fast forward 3 or 4 days and all the sudden the a/c stopped working and the sound got worse. By the way, it is the loudest when I start the car. It isn't as loud after a couple minutes and strangely isn't any louder at higher rpms.

A little more info, the system is pressurized, so no leaks. Also, there is no difference in sound or rpms between turning the a/c on and off, so the compressor isn't trying to turn on.

What I need to know is, does the a/c compressor have a clutch on this car or do I need to replace the compressor?

Any help is MUCHLY appreciated!
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Old Jun 21, 2014 | 08:33 PM
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Glyn M Ruck's Avatar
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
No clutch on the HVAC compressor. It is a swash plate compressor. Sounds as though the compressor might be damaged. Remove Poly V belt & check all accessories.

The Refrigerant must be at full pressure or the A/C wont turn on.
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Old Jun 21, 2014 | 09:43 PM
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Michael1975's Avatar
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2002 Mercedes C230
Originally Posted by Glyn M Ruck
No clutch on the HVAC compressor. It is a swash plate compressor. Sounds as though the compressor might be damaged. Remove Poly V belt & check all accessories.

The Refrigerant must be at full pressure or the A/C wont turn on.
Thanks for the reply!

That's what I thought. Unfortunately, its our only car so I will need the parts to fix when I take it apart. Maybe I need to rent my wife a car while I fix it, ughhh..
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Old Jun 22, 2014 | 03:09 PM
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2005 C230K(sold), Mk7 Jetta
Do check the alternator overrun pulley. If it's seized that might be the source of the noise and the reason your AC compressor pulley failed.
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