Quote:
Originally Posted by wildest
How much better, or more desirable, is the Sanden vs. the R4?
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Higher BTUs, less power consumption, internal oil sump, etc. The R4 is just not a good design. I really have no idea why MB used it in the first place when they used the A6 in the 1970s then went to the Denso unit on everything else... yet opted to use the R4 on the 617. The Denso on my SDL works fabulous... and my 300SEL and the 560.
Best pricing I have found is about $450 without compressor. In comparison the exact same style kit for my 735i set me back $120. I can only surmise this is due to lack of product left in the market. Figure about $30/ea to make the new low and high side hoses, cheap. The thing I am concerned about are the oil cooler hoses.
At least we do know the kit exists.