Date registered: Nov 2005
Vehicle: 2014 E350 4Matic sedan, 68K miles (purchased Jan 2017)
Location: Boston, MA
Mentioned: 0 Post(s)
Quoted: 56 Post(s)
hey there - very likely that dealer is your only bet for keys; i know that's the case for my W210.
as for the mirror signal cover, that should be an easy part to just remove and replace...i'd ask the dealership what they charge because that's one of those parts that very likely is not kept in large supply at some of the discount warehouse stores you see linked here. can't be an expensive piece and you should not require a new mirror.
Current: 2014 E350 4Matic sport sedan, 62K miles, black/black; P01 Premium Pkg/Keyless-Go/Power Trunklid/pano roof/heated steering wheel/lighting package/driver assist. Purchased 1/2/17; Delivered 1/4/17.
Sold but not forgotten: 2002 E320 4matic sedan, black on beige ("sport" package - bird's eye maple trim, 17" sport rims), 108K miles upon sale.
RIP: 2000 E430 4Matic fully loaded - totaled 12/9/2006