So, dealership is telling me I need to replace the throttle body to fix my electrical problems (check engine light, battery draining), but wants to charge me $1600 for the part. Been hunting around for options, and looks like this is the best price I've found for the MB part#:

OEM New 47-60037 ON Throttle Body, 47-60037 ON Throttle Body Sale - BuyAutoParts.com

Sounds like there's a bunch of folks that have upgraded to the SRT-6 throttle body, and I was hoping there'd be some tips on best places to pick one up? Looks like I probably ought to buy the O-Ring, too:

Throttle Body O-ring
Cryslr# 05102933AA or
Mercedes# 3059970345

It's a 2005 SRT-6, with about 60k on the odometer. Sadly, need to sell it after I get it fixed, so trying not to spend a fortune on the replacement parts. My local mechanic doesn't want to touch it, doesn't like dealing with any of the MB electronics, so ended up at the dealership.