AC: Help, need to replace high pressure hose from dryer to expansion valve. - PeachParts Mercedes-Benz Forum

winmutt · #1 07-29-2006, 02:07 PM

Re charged the system again and found my leak finally. It was under the batter holder!!! Not so easy to find. How do I evacuate the refridgerant on the R4 compressors? Do I have to do both sides? If the highside leaks out do I have to bother evacuating the low side to replace this? The diagrams I have appear to be for the York compressor. It would appear that the low side is keeping its charge so far.

Gary F. · #2 07-29-2006, 02:26 PM

Just vacuum out from the low side. NAPA in my area rebuilds hoses, last one cost me about $25. Also you may be able to get a vacuum pump loaner from Auto Zone, they charge your credit card and give you a credit when you return it.
Hope this helps
Good luck on your project.

winmutt · #3 07-29-2006, 02:40 PM

I went ahead and evacuated from the low side. Wife has other plans for the evening so it look slike I will tackle this again tomorrow. I have a parts car Im getting the hose from, hopefully its in decent shape.