M-Class (W163) 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Need help with AC problem

Old 07-16-2018, 12:14 AM
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2002 ML320
Need help with AC problem


My AC went out a few months ago and I've replaced just about everything: compressor, AAC, pressure switch, dryer, and expansion valve. Vacuumed it down and charged as much as I can without the compressor kicking on (doesn't leak). I've checked the fuses, jumped the relay and still cant get the compressor to kick on. Computer says no AC related errors. Any advice would be appreciated before I swallow my pride and take it to the stealership.

Thanks in advance.

2002 ML320 186,000 miles

Last edited by Just_s; 07-16-2018 at 12:16 AM. Reason: added car details
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Old 07-16-2018, 06:27 AM
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2002 ML 320 & 2006 ML500
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Old 01-01-2019, 03:40 AM
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1990 300 SEL 1999 420sel, 1999 ML320, 1996 500sl,2001 sl500,1999clk320, 2002 S600
No a/c

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