E-Class (W211) 2003-2009

Need Help with A/C clutch

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Old Jul 16, 2025 | 10:40 AM
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Jitterbug649's Avatar
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2007 CLK350 Cabriolet, 2006 E350 sedan
Need Help with A/C clutch

We have a "new to us" W211 2006 E350 sedan that has a noisy A/C clutch bearing. The bearing size in the existing the clutch is 35mm x 52mm x 12mm. Replacement clutches from R&Y Comp. and eBay have bearings that are 20mm thickness instead of 12mm and don't fit the compressor "nose." I ordered just a new bearing of correct size but would prefer to get a whole new clutch assembly. Any guidance on where to get the correct clutch assembly is appreciated.
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Old Jul 17, 2025 | 01:37 PM
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C320
There is no clutch. The AC compressor is always spinning.
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Old Jul 18, 2025 | 08:37 PM
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'99 and '05 E55 AMG
tjts1 is correct.
Swash plate compressor. No clutch. 0 to 100% variable engagement.
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Old Jul 19, 2025 | 03:16 AM
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2010 ML550 VIN WDC1641722A564750, 2010 B180
Change the compressor. There is no clutch. They operate anytime the engine is running. Denso is OE. I just did mine after 120k miles. No pointbin repairing at this age so if you want your a/c to function trouble free, best bet is compressor and reciever dryer replacement.
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Old Jul 19, 2025 | 08:30 AM
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2007 CLK350 Cabriolet, 2006 E350 sedan
Thanks for the comments guys....Yes, it's an always engaged drive pulley..not a clutch as referred to by aftermarket outfits. Full replacement of compressor etc. is good advice.
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