The Bilstein B4 OE replacement air strut replaces the factory air suspension to restore original ride quality and comfort on specified Mercedes-Benz models. It connects directly to the vehicle's original air and electrical connectors for modification-free installation. Built from 100% new parts, the twin-tube air spring and shock assembly returns OE-like handling and safety.
Bilstein B4 Mercedes-Benz 13-16 GL350/450 & 17 GLS350d/450/550 RPLMT Air Strut (w/o Electronic)