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      01-28-2013, 09:50 AM   #5
Private First Class

Drives: 2013 F13 M6
Join Date: Sep 2012
Location: New York

Posts: 123
iTrader: (0)

Loose underneath trim piece?

Tomorrow my car is going into the shop to fix an undercarriage trim piece which is no longer attached properly to the car on one of its sides. What happens, when I get over 80 mph, is that the airflow underneath the car is sufficient to cause the loose side to flex and rub against the road surface, and create a noise. Maybe this is what you are experiencing.