Our replacement parts ENGINE MANAGEMENT for cars MERCEDES-BENZ CLASE R (W251, V251) 2005/08 - 2017/10 R 350 CGI 4-matic (251.057, 251.157), 2011/10 - 2014/12, 306 CV, 3498 cc, M 276.958, with the same warranty as the new and original replacement parts