Going to order a genuine Mercedes remanufactured alternator. Tired of playing the merry go round with NAPA refurbished units. Hopefully with them selling me 2 lemons they will give me my money back. They are $650 instead of $200 but well worth my time and peace of mind.[/QUOTE]

Having dabbled with my two W211s on can bus issues the Alternator has to be the backbone of reliability. Another option to going OEM is a Bosch New Unit. I recently ordered one from Pelican and it would be the same as a new MB unit which would likely be be a remanufactured.

I am dealing with a front passenger side SAM unit defective right now and some of these modules are starting to be become rare, the one I need is not in the USA and none in stock in Germany. Supposed to be 4 weeks. The bummer on these newer gen tech cars is if your SAM units/ECM units go there is no subsitute for not getting new modules. You can find used ones, but dealers will not program used parts and unless you have a really old version of the Xentry there is no offline coding available.

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1995 E300 (W124)
1999 ML430 (w163)
2011 GL350 (x164)
2016 Sprinter 144" 4X4 lowtop (906)
2004 E500 (W211) 4matic Wagon (Gold)
2004 E500 (W211) 4matic Wagon Avantgarde (silver)