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W123 Factory Aircon rebuild using new MB R4 Compressor
Greetings!
After much research, I've decided to go with a new R4 compressor from Mercedes for my 84 300D NA Automatic. Sells new from Mercedes for around $720 with a 2 year warranty. It would cost me a similar amount to import a Sanden and corresponding mounting kit to the UK and saves me the hassles of fabricating hoses to accommodate RHD clearance issues. We don't really use air-conditioning in the UK for more than a 2-3 weeks a year, so the major benefits of the Sanden solution (economy, power drain etc.) are minimized to some extent.
I have 2 questions I hope someone with experience doing this can help with:
A. I plan on replacing the following. Condensing radiator was newly installed a couple years ago and is unused. Am I missing any must replace parts?
1) Aircon Receiver dryer - Part #1238300683
2) Aircon Compressor - Part #0002304711
3) Aircon Expansion Valve - Not sure what the correct part number is.
B. Any sequence of what to flush/ oil/ install etc.?
Many thanks in advance!
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