Features: - Procedures for everything from the basic oil change service to interpreting the Malfunction Indicator Light (MIL)- Engine and cylinder head service, including camshaft timing chain setup and adjustment- 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 the Siemens MS 42.0 and MS 43.0 engine management systems, 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 all wheel drive system- Heating and air conditioning repair (IHKA and IHKR), including component replacement