Quote Originally Posted by Wing'n it View Post
If there is too much fluid in the reservoir it sure could apply the brakes. If the fluid expands it has to go somewhere so if the system is overfull it will push past the master cylinder and put pressure on the system. Question is who overfilled it, the dealer that did the work?
Exactly right. With every application of the brake the fluid gets hotter and expands. Once there is no air space left in the system it starts pushing the pistons out in the caliper. That makes more friction getting the fluid even hotter till what happens to the OP. Brakes can't apply themselves. Once the fluid level is adjusted it should be fine.