I've grown very tired of the noisy and rough ride on my E89 with 84k miles. My son had a E85 and it wasn't as noisy or harsh as my E89. Anyway, after analysis by both the BMW dealer and trusted local indie, the following problems were found.
1. Bent wheels (3). Right rear very bent, both left front and rear slightly bent. I replace the right rear with a new BMW wheel. The left front and rear I had straightened and powder coated.
2. Loud noisy differential. Found a very low mileage differential on ebay and had my indie shop swap it out.
3. Front VDC struts are toast. In the next few weeks I will be replacing with OEM. Weather permitting.
So far things seem to be improving. The struts are expected to be a big improvement.
Aside from the above, I still think there may be a wheel bearing in this mix. Additionally I'm going to pull the rear wheel well liners. It seem like there is no sound insulation at all.
1. Bent wheels (3). Right rear very bent, both left front and rear slightly bent. I replace the right rear with a new BMW wheel. The left front and rear I had straightened and powder coated.
2. Loud noisy differential. Found a very low mileage differential on ebay and had my indie shop swap it out.
3. Front VDC struts are toast. In the next few weeks I will be replacing with OEM. Weather permitting.
So far things seem to be improving. The struts are expected to be a big improvement.
Aside from the above, I still think there may be a wheel bearing in this mix. Additionally I'm going to pull the rear wheel well liners. It seem like there is no sound insulation at all.