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      04-26-2011, 09:44 AM   #2
Resident Diesel Junkie
maswastage's Avatar

Drives: 2010 AW 335d
Join Date: Aug 2009
Location: Maryland

iTrader: (0)

My engine makes what I can best describe as a whistling or beeping noise, which could be a squeaky belt of some sort. I noticed it over a year ago now and it hasn't caused me any problems so I have to assume it's normal, or at least not harmful. I'm not sure if it's the same sound you're hearing, but I made a thread about it with a video so you could check it out: