2009 128i CONVERIBLE BODY VIBRATION

[NIB]

Hi All,

Can somebody advice me on what could be the problem with mine 128i Convertible. If the roof is closed, mine car vibrates at low speed of 60-80km/h and increases tremendously as the speed increases. When break is applied, the Steering wheel does not shake. With the roof done, the shaking is considerable minimized.

Based on advice of mine BMW Mechanic, I have changed all the Brake Drums (Rotor), Steering Arms Front and Back with new Stabilizer Linkage, the Front Hub Bearing and Back bearing, with Tyre Balancing and Alignment done by Dunlop Tyre Outreach. All parts changed are genuine BMW Parts and I am still having the same problem.

Kindly advice.

NIB