The BMW 3 Series (E46) Service Manual: 1999-2005 is a comprehensive source of service information and specifications for BMW 3 Series from 1999 to 2005. The aim throughout this manual has been simplicity, clarity and completeness, with practical explanations, step-by-step procedures and accurate specifications. Whether you're a professional or a do-it- yourself BMW owner, this manual will help you understand, care for and repair your E46 3 Series. This BMW manual supersedes our previous 1999-2001 E46 manual (Bentley Stock No. B301, ISBN 0-8376-0302-X). Technical highlights: • Procedures for everything from oil change service to interpreting the Malfunction Indicator Light (MIL). This manual tells you what to do and when to do it. • Engine and cylinder head service, including valve clearance adjustment on the S54 engine. • Information for specific driveability problems, including explanation of engine management systems and BMW OBD II Diagnostic Trouble Codes (DTCs). • Theory of operation and repair information for Siemens MS 42.0, MS 43.0, MS 45.1 and MS S54 engine management, resonance/turbulence intake manifold and Double VANOS (Variable Camshaft Timing). • Drivetrain maintenance, troubleshooting, adjustment and repair of self- adjusting clutch (SAC), gearshift linkage, driveshaft, drive axles and, wheel drive system. • Manual, sequential manual (SMG), and automatic transmission removal, installation, seal replacement and external service. • System description and repair information for Antilock Brakes (ABS), Automatic Stability Control (ASC) and Dynamic Stability Control (DSC).