My new rotors (aftermarket) dropped a retainer clip in my garage. Took it to my mechanic and he put it back on the rotor/caliper. I asked him how I would know it was missing if it fell off somewhere besides my garage. He showed me where to look in the wheel to see it. He poked it and it fell off. Besides yelling, what is a fix for this? When my mechanic ordered the new rotors for my car, he found one clip missing and we had to wait while the supplier delivered the clip. My mechanic said Volvo's rotors do this all the time.
