Rick, Some MBs have SAE threaded comps. and some have metric. There are also light vs. regular version R4s. The 'regular' is slightly longer and supposedly has a larger clutch according to the Delco pdf linked below. http://www.acdelco.com/pdf/appcat_buyers/compressors.pdf
My 240D has a light version (added before my time) and the support bracket typically on the back side of the W123 comp. has fit issues (it was removed). There may be a method around that but I don't know fittings very well. I always thought they were interchangeable beyond those points but have seen some weird looking connections on GM R4s that would need substantial MB retrofitting. Luckily the hard line connection fit is obvious when you are looking at them. As an aside, I'm looking to pick up a spare to make a 'tool' like the one shown in the link below - it allows resealing an entire 'good but leaky' R4 instead replacing it or just replacing the front seal. http://www.peachparts.com/shopforum/2714537-post76.html More details: http://www.peachparts.com/shopforum/2709045-post73.html And for completeness from the same (very long) thread - part number info if you want to get everything from ackits.com to redo the front seal. http://www.peachparts.com/shopforum/2505666-post71.html Good luck, Dave SoCal - '82 240D (3 pedal), '84 300TD (Euro), '85 300TD (Cali) On May 23, 2012, at 5:17 PM, Rick Knoble wrote: > > Tomorrow is 1/2 price day at P-N-P. I was going to pick up an A/C compressor > or three. > Can I pull any GM R4 and change the manifolds to fit the Mercedes? > > Rick _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
