Another POS R4 is about $240 new, the cost is not that much more for a reliable compressor conversion system...about $350 more is well worth it. I gave up trying to seal my new one with stepped ports and dealing with leaky used ones. Never again. I could have long since paid for this conversion considering all the money and time I have wasted with those R4 units.

I have owned my SD for nearly a decade and have probably around 10-15 months of a working R4 system. Pitiful.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]