Aerosus ABC struts replace the original strut of your vehicle & fit front left side of Mercedes CL (C215) vehicles with ABC (Active Body Control). The product has been completely rebuilt according to original manufacturer specifications. All wear parts have been replaced with new parts to ensure maximum security & ride comfort. An additional core deposit is added to the purchase price & will be refunded once the used original suspension part is returned to us. ABC, or Active Body Control, is high-quality suspension system developed by Mercedes-Benz to complement the body motion control of the vehicle in different driving situations. Using sensors connected to a computer & hydraulic servomechanisms, the ABC system controls the action of the active suspension & eliminates body roll. The Mercedes ABC struts (also known as hydropneumatic struts) feature a steel coil spring, a shock absorber & a hydraulically controlled adjusting cylinder. Our ABC struts are designed for superior ride quality by adjusting quickly to different road & vehicle conditions. Each strut is covered by a 2-year limited warranty & a 30-day money-back guarantee by Aerosus. Features Completely rebuilt product according to OE specifications Security & durability Maximum ride comfort Adjustable to different road & vehicle conditions Safe load carrying capacity & stability Ready to install Thousands of satisfied customers worldwide