hey guys need some help i am having vibration onec i get to 70 mph to 85 mph on my 01a4 1.8t Q i did the balance and alignment they checked my wheel if they are bent they are fine. any help would be appreciated

 

worn suspension compnents perhaps. crappy roads.

 

I had something similar, got new tires and it went away. Is there any noise?

 

double check to see if a tire is warped. Also, some tires are directional and might cup if on the wrong way. might be a bearing? No expert but these were the reasons given me a few weeks back. Do you have stock rims? if not, you might need hub rings to give stability.

 

i bought new tires 8 months ago tie rods where changed 3 months ago. i can feel the floorvibrating and the front chair is vibrating at 70-75 mph