Originally Posted by
the.Santorini
Swapped out the alternator and no more whining noise.
I've seen a few other posts around here about Bosch alternators and modifications needed to get them to work. The Bosch alternator to get is AL0787X. Exact fit without modification and despite it being a bit larger in size it went right in without hesitation. Ironically it even had the Mercedes star etched into it though advertised a just a Bosch alternator on Amazon.
That part number is for the NA models only.
The alternator you have purchased was originally on a Mercedes car, hence the MB logo on it. It was then traded in as a casting, remanufactured and resold. It may have on it the MB part number as well as the original Bosch part number. They can come with just the Bosch part number, not the reman number you have. There is a Valeo equivalent of this alternator available.