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Old 08-29-2017, 01:13 PM
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Join Date: Aug 2017
Posts: 1
How to remove and replace ac compressor on 2002 w203 C320?

Been searching for weeks for an article or instructions on how to remove and
replace the ac compressor on a 2002 w203 C320. Any help would be great. It's been a long hot summer!

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Old 08-29-2017, 07:04 PM
Join Date: Mar 2016
Location: Los Angeles, CA
Posts: 1,886
Hello and welcome to the forum! I also did a search and was unable to find the procedure. I would recommend picking up a workshop manual for your W203 - it'll have all the repair procedures listed. I believe that Haynes makes one for your car. Hope this helps a bit and best of luck!
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Old 08-29-2017, 08:27 PM
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Join Date: May 2009
Location: The slums of Beverly Hills
Posts: 6,784
It's pretty easy actually, I just replaced it on 02 c320 wagon. Going from memory, you'll need to unbolt the driver's side engine mount (13mm) from the subframe of the car. The compressor is held in place with 3 very long E torx (E10) screws that can be accessed from the top or bottom. The hoses are disconnected from the top (Allen bolt with wiggle joint). It helps to remove the engine cover and coil packs on the driver's side. You will need to jack up the engine on the driver side by about 1 inch in order to unbolt the rear compressor bolt. You'll also need to unplug the ac control plug after removing the hoses. Also remove the belt tensioner ( 2 Etorx bolts) Once all that is done, the compressor is easily removed from the top between the engine and the radiator. Installation is in reverse. Check the oil in the old compressor. If it's black with metal flakes you'll need to flush the system and replace the expansion valve and condenser. If you're replacing the compressor this is the time to also replace the driver's side engine mount since you have easy access now.


November 3rd flush the turd.
January 20 lock him up.
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