Arnott's AS-3237 is a completely remanufactured OE front right strut for the 2010-2016 Mercedes-Benz E-Class (W212) and 2011-2018 CLS-Class (W218) with 4MATIC, AIRMATIC & ADS. The OE strut is inspected, disassembled, steam cleaned, and spin blasted to bare metal before being repainted with corrosion inhibiting paint. The Arnott remanufactured strut features new high-quality Tier 1 components such a multi-ply rubber air bladder from ContiTech, heavy duty crimping rings, O-Rings, new airline fitting and dust boot to protect the air sleeve. This Arnott remanufactured strut is designed and tested to work with the vehicles active damping and auto leveling suspension controls. Arnott remanufactures this Mercedes-Benz air strut in the USA and backs it with a Limited Lifetime Warranty. This strut is for vehicles with 4MATIC.