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      11-11-2012, 04:11 PM   #2
Fed P
Private First Class

Drives: 135i
Join Date: Mar 2012
Location: Russia

Posts: 111
iTrader: (0)

Generally rattle on our N54s is the turbo wastegate. In some cases it can mean a failing turbo, wastegate actuator and/or other component (for example vacuum hoses that work the actuator), but apparently a lot of people also have the rattle and do not experience problems. Do you have any power loss / CEL light / error codes?