Electric Parking Brake Actuator 1669065401 / 2229063801 is a high-quality replacement component designed for Mercedes-Benz vehicles equipped with an electronic parking brake system. It controls the rear brake caliper mechanism to automatically engage and release the parking brake, ensuring safe and reliable vehicle parking. Compatible with Mercedes-Benz GLS W166 and S-Class W222 models, this actuator offers precise performance, durability, and easy installation as a direct OEM replacement.