Cheapest way to fix alternator

Mercedes Benz does not often share its parts with other makes. At least not on the US market. Parts can often be found online on Amazon. Com or eBay, which will save you some money. Also, you can look at having it rebuilt if there is an alternator repair shop around.

Are you 100% sure that it needs an alternator? 95% of the time when someone thinks that they need an alternator, they really just need a battery, or a fuse, or need to clean and tighten cables.