Aerosus ABC struts replace the original strut of your vehicle & fit front right side of Mercedes-Benz SL-Class R230 (SL500 & SL600) 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