Remove timing case cover, bottom

Precondition 

• Remove and install front axle complete with engine and transmission.

  Engine oil has been drained

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 CLEAN AIR PIPE OF CYLINDER BANK 2 .
• Refer to REMOVING THE LEFT AND RIGHT CHARGE AIR COOLER (ENGINE REMOVED) .
• Refer to RELEASING THE UPPER HEAT SHIELD .
• Refer to REMOVING DRIVE BELT .
• Refer to REMOVING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
• Refer to REMOVING THE VIBRATION DAMPER .
• Refer to REMOVING FLYWHEEL .
• Refer to REMOVING THE COOLANT PUMP .
• Refer to REMOVING THE BELT TENSIONER .
• Refer to REMOVING THE ALTERNATOR .
• Refer to PREPARING SPECIAL TOOL (8.5 MM DIAMETER) .
• Refer to REMOVING THE HOLDER WITH THE VEHICLE WIRING HARNESS FOR THE SENSOR SYSTEM OF CYLINDER BANK 1 .
• Refer to REMOVING THE HOLDER WITH THE VEHICLE WIRING HARNESS FOR THE SENSOR SYSTEM OF CYLINDER BANK 2 .
• 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 LEFT MOUNT .
• Refer to REMOVING RIGHT MOUNT .
• Refer to REMOVING THE LEFT AND RIGHT EXHAUST TURBOCHARGER .
• 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 FRONT HEAT SHIELD .
• Refer to REMOVING HEAT SHIELD AT BOTTOM .
• Refer to REMOVING FUEL DELIVERY LINE .
• Refer to REMOVING IGNITION COIL OF CYLINDER BANK 1 .
• Refer to REMOVING HIGH PRESSURE RAIL AT CYLINDER BANK 1 .
• Refer to DISCONNECTING THE PLUG CONNECTIONS OF THE INJECTORS OF CYLINDER BANK 1 .
• Refer to REMOVING INJECTORS .
• Refer to REMOVING CONDUIT FROM BANK 1 .
• Refer to REMOVING IGNITION COIL OF CYLINDER BANK 2 .
• Refer to REMOVING THE RIGHT HIGH PRESSURE PUMP .
• Refer to REMOVING RAIL FROM BANK 2 .
• Refer to DISCONNECTING PLUG CONNECTIONS OF THE INJECTORS OF CYLINDER BANK 2 .
• Refer to REMOVING INJECTORS .
• Refer to REMOVING THE HOLDER WITH THE VEHICLE WIRING HARNESS FOR THE SENSOR SYSTEM OF CYLINDER BANK 1 .
• Refer to REMOVING PRIMARY OXYGEN SENSOR FOR CYLINDERS 1 TO 4 .
• Refer to REMOVING LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 5 TO 8 .
• Refer to REMOVING LEFT HIGH PRESSURE PUMP .
• Refer to REMOVING THE OXYGEN SENSOR MONITOR OF CYLINDER BANK 2 .
• Refer to REMOVING CONDUIT FROM BANK 1 .
• Refer to REMOVING THE TANK VENTILATION LINE OF CYLINDER BANK 1 PARTIALLY .
• Refer to REMOVING ENGINE VENTILATION LINE OF CYLINDER BANK 2 .
• Refer to REMOVING THE WIRING HARNESS FROM THE CYLINDER BANK 2 .
• Refer to REMOVING RIGHT CYLINDER HEAD COVER .
• Refer to REMOVING LEFT CYLINDER HEAD COVER .
• Refer to CHECKING THE VANOS ADJUSTER OF CYLINDER BANK 1 .
• Refer to RELAXING CHAIN TENSIONER ON BANK 1 FOR CHECKING OR SETTING TIMING .
• Refer to REMOVING HYDRAULIC CHAIN TENSIONER OF CYLINDER BANK 1 .
• Refer to PRELOADING THE TIMING CHAIN OF CYLINDER BANK 1 .
• Refer to FIXING THE ENGINE IN THE INSTALLATION POSITION ON CYLINDER 1 .
• Refer to INSTALLING THE SPECIAL TOOL TO SECURING THE CAMSHAFTS OF CYLINDER BANK 1 .
• Refer to REMOVING BOTH RIGHT VANOS ADJUSTERS .
• Refer to REMOVING SPECIAL TOOL FOR FIXING CAMSHAFTS ON BANK 1 .
• Refer to REMOVING THE TIMING CASE COVER FROM THE CYLINDER HEAD OF CYLINDER BANK 2 .
• 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 FIXING THE ENGINE IN THE INSTALLATION POSITION ON CYLINDER 1 .
• Refer to INSTALLING THE SPECIAL TOOL TO SECURING THE CAMSHAFTS OF CYLINDER BANK 2 .
• Refer to REMOVING BOTH LEFT VANOS ADJUSTERS .
• Refer to REMOVING RIGHT CYLINDER HEAD .
• Refer to REMOVING LEFT CYLINDER HEAD .
• Refer to REMOVING LOWER OIL PAN SECTION .
• Refer to REMOVING OIL PUMP .
• Refer to RELEASING AIR CONDITIONING COMPRESSOR .
• Refer to REMOVING THE RIGHT ENGINE MOUNT HOLDER .
• Refer to REMOVING FRONT AXLE DIFFERENTIAL .
• Refer to REMOVING THE LEFT ENGINE SUPPORT BRACKET .
• Refer to REMOVING UPPER OIL SUMP SECTION (ENGINE REMOVED) .

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

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Release the screw connection 2 on the front timing case cover 

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

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

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