I need help I let a total stranger who self proclaimed to be a certified mechanic do the rear amg c32 upgrade. What would cause the calipers to grab the rotors so tight and never release? The actual caliper is against the rotors metal to metal with the pads now damaged as I see little shards of metal. I Drove 3 feet before noticing this.
During the installation my 1st observation while i was installing the new wing, i noticed he let the fluid level drop to the bottom of the reservoir. 2nd no bolt on the rotors to hold it in place. 3rd he was trying to get the pads to give him more space for the rotors with a metal tip of a screwdriver driver.
I left for 30 min to get more bottles of Motul 600 I come back the car is not drivable. I attempted to bleed the brakes alone and lost light quickly and had to stop.

Thx


Rotor

This is the caliper c32 AMG rear