Why do amg brakes squeak?

• Put Some Grease or Other Lubricant on the Brake Pads. If your vehicle brakes are new and still making a squeaking sound, the fix may be as easy as lubricating the touchpoints.
• Put a Set of Shims. For additional help against loud brakes, try using brake pad shims.
• Replace the Rotors and Pads.

This occurrence is fairly common with brand-new Mercedes-Benz and brake pads since Mercedes-Benz uses high-performance semi-metallic brakes. With brake pads rubbing against metal brake rotors, the squeaking noise is normal, especially with the dust accumulation.