The BMW 3 Series (E90, E91, E92, E93) Service Manual: 2006-2011 contains in-depth maintenance, service and repair information for the BMW 3 Series from 2006 to 2011. The aim throughout has been simplicity and clarity, with practical explanations, step-by-step procedures and accurate specifications. Whether you¿re a professional or a do-it-yourself BMW owner, this manual helps you understand, care for and repair your BMW.Normally aspirated models (6-cylinder 3.0 engines)¿ N52 engine: 325i, 325xi, 330i, 330xi (2006)¿ N52KP engine 328i, 328xi (2007-2011)¿ N51(SULEV) engine: 328i, 328xi (2007-2011)Turbo-charged models (6-cylinder 3.0 engines)¿ N54 engine: 335i, 335xi (2009 - 2010), 335is (2011)¿ N55 engine: 335i, 335xi (2011)