Yeah,same thing here,also a steering wheel play while passing the bumps.
The feeling is,if something right underneath of the pedals was hammering the floor.

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e53 '00 4.4i Oxford Green II Freshly rebuilt tranny(2nd one) and transfer case/front shaft
e70 '08 3.0si Sapphire Black cinnamon leather 7 seats
e61 '06 530XI Sports Touring Silver - SOLD