Remove timing case cover, bottom

Preliminary work 

• Refer to REMOVING THE ENGINE FROM THE LIFTING TABLE .
• Refer to MOUNTING THE ENGINE TO THE ENGINE SUPPORT BRACKET .
• Refer to REMOVING THE LEFT INTAKE SILENCER BRACKET .
• Refer to REMOVE RIGHT INTAKE SILENCER HOUSING .
• Refer to PARTIAL UNINSTALLATION OF THE ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
• Refer to REMOVING ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
• Refer to REMOVING THE OXYGEN SENSOR MONITOR FOR THE CYLINDERS 1 TO 4 .
• Refer to REMOVING THE RIGHT INTAKE SILENCER BRACKET .
• Refer to REMOVING THE LOW-TEMPERATURE COOLANT EXPANSION TANK .
• Refer to REMOVING THE CROSS OF THE TRANSMISSION WIRING HARNESS .
• Refer to REMOVING LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 1 TO 4 .
• Refer to REMOVING LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 5 TO 8 .
• Refer to REMOVING UPPER HEAT SHIELD .
• Refer to REMOVING UPPER CATALYTIC CONVERTER NEAR ENGINE FROM CYLINDER BANK 1 .
• Refer to REMOVING THE CATALYTIC CONVERTER NEAR THE ENGINE AT TOP OF CYLINDER BANK 2 .
• Refer to REMOVING THE LEFT AND RIGHT EXHAUST TURBOCHARGER .
• Refer to REMOVING FRONT HEAT SHIELD .
• Refer to REMOVING HEAT SHIELD OF THE CYLINDER HEAD COVER FOR CYLINDERS 1 TO 4 .
• Refer to REMOVING HEAT SHIELD OF CYLINDER HEAD COVER OF CYLINDERS 5 TO 8 .
• Refer to REMOVING BOTH EXHAUST MANIFOLDS .
• Refer to REMOVING HEAT SHIELD AT BOTTOM .
• Refer to REMOVING OIL FILLER NECK .
• Refer to REMOVING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to REMOVING DRIVE BELT .
• Refer to REMOVING THE ALTERNATOR .
• Refer to REMOVING LEFT AND RIGHT CHARGE AIR COOLER .
• Refer to REMOVING VANOS SOLENOID ACTUATOR, EXHAUST OF CYLINDER BANK 2 .
• Refer to REMOVING LEFT THROTTLE VALVE ASSEMBLY .
• Refer to REMOVING THE COOLANT LINE BETWEEN THE COOLANT PUMP AND HEAT EXCHANGER .
• Refer to REMOVING IGNITION COIL OF CYLINDER BANK 2 .
• Refer to REMOVING THE IGNITION COILS OF CYLINDERS 1 AND 2 .
• Refer to REMOVING RAIL FROM BANK 2 .
• Refer to RELEASING THE COOLANT LINE FOR THE EXHAUST TURBOCHARGER .
• Refer to PARTIALLY RELEASING THE FUEL SUPPLY LINE ON THE RIGHT .
• Refer to REMOVING FUEL DELIVERY LINE .
• Refer to REMOVING THE HEAT SHIELD OF THE CRANKCASE VENTILATION OF THE CYLINDERS 5 TO 8 .
• Refer to REMOVING LEFT HIGH PRESSURE PUMP .
• Refer to REMOVING WIRING HARNESS SECTION FOR THE IGNITION SYSTEM OF CYLINDER BANK 2 .
• Refer to REMOVING LEFT CYLINDER HEAD COVER .
• Refer to REMOVE THE SEALING CAP ON THE CYLINDER HEAD OF THE CYLINDER BANK 2 .
• Refer to REMOVING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
• Refer to MOVING THE CRANKSHAFT INTO THE INSTALLATION POSITION OF CYLINDER BANK 1 .
• Refer to CHECKING THE VANOS ADJUSTER OF CYLINDER BANK 2 .
• Refer to RELAXING CHAIN TENSIONER ON BANK 2 FOR CHECKING OR SETTING TIMING .
• Refer to REMOVING HYDRAULIC CHAIN TENSIONER OF CYLINDER BANK 2 .
• Refer to PRELOADING THE TIMING CHAIN OF CYLINDER BANK 2 .
• Refer to SECURING THE ENGINE IN INSTALLATION POSITION AT CYLINDER 1 .
• Refer to INSTALLING THE SPECIAL TOOL TO SECURE THE CAMSHAFTS OF CYLINDER BANK 2 .
• Refer to REMOVING BOTH LEFT VANOS ADJUSTERS .
• Refer to REMOVING SPECIAL TOOL FOR FIXING CAMSHAFTS IN POSITION ON BANK 2 .
• Refer to REMOVING SPECIAL TOOL TO PRETENSION TIMING CHAIN ON CYLINDER BANK 2 .
• Refer to REMOVING LEFT CYLINDER HEAD .
• Refer to REMOVING RIGHT CYLINDER HEAD .
• Refer to REMOVING DRIVE BELT .
• Refer to REMOVING THE ALTERNATOR .
• Refer to REMOVING LEFT THROTTLE VALVE ASSEMBLY .
• Refer to REMOVING HIGH PRESSURE RAIL AT CYLINDER BANK 1 .
• Refer to RELEASING THE COOLANT LINE FOR THE EXHAUST TURBOCHARGER .
• Refer to REMOVING HEAT SHIELD OF THE CRANKCASE VENTILATION FOR CYLINDERS 1 TO 4 .
• Refer to REMOVING RIGHT HIGH-PRESSURE PUMP .
• Refer to PARTIALLY RELEASING THE WIRING HARNESS SECTION FOR THE INTEGRATED POWER SUPPLY MODULE .
• Refer to REMOVING WIRING HARNESS SECTION FOR THE IGNITION SYSTEM OF CYLINDER BANK 1 .
• Refer to REMOVING RIGHT CYLINDER HEAD COVER .
• Refer to REMOVING THE SEALING CAP ON THE CYLINDER HEAD OF THE CYLINDER BANK 1 .
• Refer to REMOVING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
• Refer to MOVING THE CRANKSHAFT INTO THE INSTALLATION POSITION OF CYLINDER BANK 1 .
• Refer to CHECKING THE VANOS ADJUSTER OF CYLINDER BANK 1 .
• Refer to RELIEVING THE CHAIN TENSIONER AT CYLINDER BANK 1 FOR CHECKING OR SETTING THE VALVE TIMINGS .
• Refer to REMOVING HYDRAULIC CHAIN TENSIONER OF CYLINDER BANK 1 .
• Refer to PRELOADING THE TIMING CHAIN OF CYLINDER BANK 1 .
• Refer to SECURING THE ENGINE IN INSTALLATION POSITION AT CYLINDER 1 .
• Refer to INSTALLING THE SPECIAL TOOL TO SECURE THE CAMSHAFTS OF CYLINDER BANK 1 .
• Refer to REMOVING BOTH RIGHT VANOS ADJUSTERS .
• Refer to REMOVING THE SPECIAL TOOL TO PRETENSION THE TIMING CHAIN AT CYLINDER BANK 1 .
• Refer to RELEASING AIR CONDITIONING COMPRESSOR .
• Refer to REMOVING THE ENGINE MOUNT .
• Refer to REMOVING FRONT AXLE DIFFERENTIAL .
• Refer to RELEASING THE OIL DRAIN PLUG .
• Refer to REMOVE LOWER OIL PAN SECTION .
• Refer to REMOVING OIL PUMP .
• Refer to REMOVING UPPER OIL SUMP SECTION .
• Refer to REMOVING THE VIBRATION DAMPER .
• Refer to REMOVING THE COOLANT PUMP .
• Refer to REMOVING THE COOLANT LINE BETWEEN THE COOLANT PUMP AND HEAT EXCHANGER PARTIALLY .

• Unscrew the screw connection 1 on the timing case cover in front

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect the plug connection (1) on the coolant temperature sensor (2). 

• Loosen screws in the order (10) to (12).
• Remove the carrier plate (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Release the screw connection 2 on the front timing case cover 

• Loosen screws in the order (9) to (3).

Courtesy of BMW OF NORTH AMERICA, INC.

Release the screw connection 3 on the timing case cover in front 

• Loosen screws in the order (1) to (2).
• Remove timing case cover.

Courtesy of BMW OF NORTH AMERICA, INC.