This Bentley Publishers service manual is a comprehensive source of service information and technical specifications available for the BMW E46 platform 3 Series models from 1999 to 2005. Whether you're a professional or a do-it-yourself BMW owner, this manual will help you understand, care for and repair your car.

• 323i/Ci (M52 TU, 2.5L)
• 328i/Ci (M52 TU, 2.8L)
• 325i/Ci/xi (M54 / M56, 2.5L)
• 330i/Cis/xi (M54, 3.0L)
• M3 (S54, 3.2 liter Motorsport engine)

• 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).
• Heating and air conditioning repair (IHKA and IHKR), including component replacement.
• Body adjustments and repairs, including sunroof, convertible top and tailgate.
• Wiring schematics, including power distribution and ground locations.
• Dedicated electrical component guide specifying relay, control module and ground locations with detailed illustrations and photos.