C30 Gurgling/bubbling sound when braking
Hi all, 2012 C30 TR5, 47k, MTE Stage 1 tune, lovely car most of the time. Never been impressed with the brakes but adjusted my driving to compensate. However, today braking at slow speed, the front brakes made a bubbling, gurgling sound. Car stopped fine. No pull to the side. Braked again at slightly higher speed. Same sound, not as loud. After that no more sound on braking. What do you think is happening? Empty cardboard box flew off a truck in front of me this morning and went under the car. Was trapped there making noise for about 30 seconds until I found a place to pull over and get rid of it. Maybe caused damage? Maybe brake lines are failing?