Hi Beemers,My BMW E60 drivers set has a "tak" noise every time I accelarate and brake. I have send it to AB and another mechanic in Subang but no one can solve the problem. Dare not give it to non Beemer mechanics as some one in AB told me that there are lots of sensors on the seat and thus if the guy is not a pro he may screw it up totally.The noise is from the joint between the lower and the back rest area of the seat. Any one encounter this problem before? How to resolve it?Hope some Sifu's can help.