SK-3059 is an Arnott designed new rear shock for the right or left side of 2010-2016 Mercedes-Benz E-Class (W211) sedan including 4MATIC. The new shock bypasses the OE Adaptive Damping System (ADS) and is built with a custom-tuned, velocity-sensitive, damper calibrated to provide an smooth yet responsive ride. This completely new shock includes a new polyurethane bump stop, protective dust boot, and new top and bottom mounts along with coil resistor to eliminate any suspension dashboard warning lights. This replacement Mercedes-Benz E-Class rear shock is assembled by Arnott in the USA