mercedesbuff

UPDATE: I just had the dealership work on the side mirror wind chirping noise (for the 3rd time), and this time it seems to have made a large improvement! I can still hear something very faint, but nothing remotely close to the "almost-ready-to-boil tea kettle" noise that I've been dealing with, up until now.

I hope this can help the rest of you suffering with the same issue. Here's the part # and technician notes:

CUSTOMER STATES WIND WHISTLE STILL NOT FIXED. TAPE ACROSS THE TOP OF THE MIRROR GAP FIXES THE NOISE. CHECK AND ADVISE.

WARRANTY - 883321 LENS FOR LEFT DOOR/FENDER MIRROR REPLACE
WARRANTY - 883424 HOUSING FOR LEFT DOOR/FENDER MIRROR REPLACE

Part: 167-811-05-00 COVER TRIM

REMOVED LEFT MIRROR GLASS, REPLACED LEFT MIRROR HOUSING CAUSING WHISTLE NOISE.