So when I first got my car I found that the entire car would shake when under light braking conditions. I changed out the rotars due to emtreme glazing and warping but like a idiot decided not to swap the pads as well. Well the problem stopped for a good couple months but started up again. I took the pads off and replaced them with some ceramics and got the rotors resurfaced since they were slightly glazed again. Now I have new pads and resurfaced rotors and when I brake hard everything is fine but when I brake lightly the whole car shutters, any ideas on what could be causing this because it is super annoying and I really would love to get it to stop.

 

Your rotors are shot. When braking lightly the pads are "pulsing" on the rotors. since the rotors are warped, you feel the 'shake'. When you are braking with elan, you are making greater contact with the rotors and hence, the 'better' feeling.

r.

 

rotors are new and just had a shop resurface them to be sure so I dont think it could be that, any other ideas?

 

Resurfacing is not the way to go. In fact, BMW and Merc will not resurface rotors. I feel that you had new rotors and put 'used' pads on them that may well have caused the 'warp'. Now.............TECH will most likely put some input into this thread and perhaps he has some better insight for you. Incidentally, I use ventilated rotors on my C70 with factory pads. I found that ceramic and metallic pad did cause rotors to warp.

r.

 

Control arm bushings might be bad as well.
Rotors can warp very fast. If you get them really hot and hit a puddle the they can warp that fast.

 

thats what i was gonna say. check all of your suspension in the front. take a small pry bar and just see what you can move under there. inner and outer tie rods, control arms, etc.