Yeah, it feels like I am driving a 3L not a 4.8is at that time. Regular driving load, not excessive to generate the problem. The more I press the gas pedal the louder the noise is.

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4.8is 2004 imola red
4.8is 2005 Black on Black - DINAN/2 sold
4.4 2004 X5
2003 330xi
2008 328xi - sold
4.4 2000 X5 - sold