Remove the slide rail of the timing chain for cylinder 1 to 4

CAUTION: Component with heavyweight.
Injury hazard!

Note component's center of gravity.
Support component using a jack.
Secure component against falling off the jack.

Preliminary work

Refer to DISCONNECTING THE WIRING HARNESS FROM THE TRANSMISSION .
Refer to REMOVING AUTOMATIC TRANSMISSION .
Refer to RELEASING CONVERTER BOLTING .
Refer to DISCONNECTING TRANSMISSION FROM ENGINE .
Refer to RELEASING THE ENGINE MOUNT .
Refer to LOOSENING THE SCREW CONNECTION ON THE LEFT OF THE ENGINE MOUNT .
Refer to LIFT OUT THE ENGINE WITH THE WORKSHOP CRANE .
Refer to INSTALLING THE ENGINE ON THE ASSEMBLY JIG .
Refer to ENGINE ON ASSEMBLY JIG .
Refer to ENGINE ON ASSEMBLY JIG .
Refer to REMOVING ENGINE VENTILATION LINE .
Refer to REMOVING THE LAMBDA OXYGEN SENSOR AND THE MONITORING OXYGEN SENSOR FOR CYLINDERS 1 TO 4 .
Refer to REMOVING THE LAMBDA OXYGEN SENSOR AND THE MONITORING OXYGEN SENSOR FOR CYLINDERS 5 TO 8 .
Refer to REMOVING UPPER HEAT SHIELD .
Refer to REMOVING RIGHT HEAT SHIELD .
Refer to REMOVING THE LEFT HEAT SHIELD .
Refer to RELEASING SCREW BETWEEN THE LEFT AND RIGHT HEAT SHIELD .
Refer to REMOVING RIGHT HEAT SHIELD .
Refer to RELEASING SCREW BETWEEN THE LEFT AND RIGHT HEAT SHIELD .
Refer to REMOVING THE CATALYTIC CONVERTER FOR CYLINDERS 1 TO 4 .
Refer to REMOVING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
Refer to REMOVING RIGHT CHARGE AIR COOLER .
Refer to REMOVING LEFT CHARGE AIR COOLER .
Refer to REMOVING ALL IGNITION COILS ON THE RIGHT .
Refer to REMOVING ALL LEFT IGNITION COILS .
Refer to RELEASING THE COOLANT EXPANSION TANK FROM THE HOLDERS .
Refer to BLOCKING THE BELT TENSIONER WITH THE SPECIAL TOOL .
Refer to REMOVING DRIVE BELT .
Refer to REMOVING THE TENSIONING PULLEY .
Refer to REMOVING THE ALTERNATOR .
Refer to PARTIALLY LOOSENING THE WIRING HARNESS FROM THE CYLINDER HEAD COVER ON THE LEFT .
Refer to PARTIALLY LOOSENING THE WIRING HARNESS FROM THE CYLINDER HEAD COVER ON THE LEFT .
Refer to REMOVING THE HEAT SHIELD OF THE HIGH-PRESSURE PUMP OF THE CYLINDER HEAD COVER ON THE RIGHT, CYLINDERS 1 TO 4 .
Refer to REMOVING THE HEAT SHIELD OF THE HIGH-PRESSURE PUMP CYLINDER HEAD COVER ON THE LEFT, CYLINDERS 5 TO 8 .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING THE HIGH-PRESSURE RAIL ON THE LEFT .
Refer to REMOVING RIGHT RAIL .
Refer to REMOVING INJECTORS .
Refer to REMOVING LEFT HIGH PRESSURE PUMP .
Refer to REMOVING RIGHT HIGH-PRESSURE PUMP .
Refer to REMOVING HEAT SHIELD ON THE CYLINDER HEAD COVER ON LEFT AT CYLINDERS 5 TO 8 .
Refer to REMOVING THE HEAT SHIELD ON THE CYLINDER HEAD COVER ON THE RIGHT AT CYLINDERS 1 TO 4 .
Refer to RELEASING THE PLUG CONNECTION TO THE ACTUATOR ON THE INTAKE SIDE OF CYLINDERS 1 TO 4 .
Refer to REMOVING THE ACTUATOR OF THE VARIABLE CAMSHAFT TIMING CONTROL .
Refer to SCREW CONNECTION OF CYLINDER HEAD COVER, LEFT CYLINDERS 5 TO 8 .
Refer to LEFT CYLINDER HEAD COVER SCREW CONNECTION, CYLINDER 1-4 .
Refer to REMOVING THE OIL RETURN LINE FROM THE OIL RETURN COVER OF CYLINDERS 1 TO 4 .
Refer to RELEASING THE OIL FEED LINE FROM THE EXHAUST TURBOCHARGER OF THE CYLINDERS 1 TO 4 .
Refer to LOOSENING OIL FEED LINE ON EXHAUST TURBOCHARGER OF CYLINDERS 1 TO 4 .
Refer to RELEASING THE BANJO BOLT FOR THE COOLANT LINE FEED LINE AT THE EXHAUST TURBOCHARGER OF CYLINDERS 1 TO 4 .
Refer to LOOSENING THE BANJO BOLT FOR THE COOLANT RETURNING LINE AT THE EXHAUST TURBOCHARGER FOR CYLINDERS 1 TO 4 .
Refer to REMOVING THE EXHAUST TURBOCHARGER FOR THE CYLINDERS 1 TO 4 .
Refer to DETACHING OIL RETURN LINE FROM THE OIL RETURN COVER OF CYLINDERS 5 TO 8 .
Refer to RELEASING THE OIL FEED LINE FROM THE EXHAUST TURBOCHARGER OF CYLINDERS 5 TO 8 .
Refer to REMOVING EXHAUST TURBOCHARGER FOR CYLINDERS 5 TO 8 .
Refer to REMOVING THE HEAT SHIELD AT THE CYLINDERS 1 TO 4 .
Refer to REMOVING THE HEAT SHIELD AT CYLINDERS 5 TO 8 .
Refer to LOOSENING THE TOP LEFT TIMING CASE COVER .
Refer to LOOSENING THE TOP RIGHT TIMING CASE COVER .
Refer to MOUNTING THE SPECIAL TOOL ON THE PROCESSED SURFACE OF THE CAMSHAFT .
Refer to MOUNTING THE SPECIAL TOOL ON THE INTAKE CAMSHAFT FOR CYLINDERS 1 THROUGH 4 .
Refer to MOUNTING THE SPECIAL TOOL ON THE EXHAUST CAMSHAFT FOR CYLINDERS 1 THROUGH 4 .
Refer to MOUNTING THE SPECIAL TOOL ON THE INTAKE CAMSHAFT FOR CYLINDERS 5 THROUGH 8 .
Refer to MOUNTING THE SPECIAL TOOL ON THE EXHAUST CAMSHAFT FOR CYLINDERS 5 THROUGH 8 .
Refer to REMOVING THE VANOS CENTRAL VALVES 5 TO 8 INTAKE .
Refer to REMOVING THE VANOS CENTRAL VALVE 5 TO 8 FOR THE EXHAUST .
Refer to REMOVING THE VANOS CENTRAL VALVES 1 TO 4, INTAKE .
Refer to REMOVING THE VANOS CENTRAL VALVES 1 TO 4 EXHAUST .
Refer to CHECKING THE VANOS CENTRAL VALVE .
Refer to RELEASING THE SLIDE RAIL OF THE UPPER CAMSHAFT CYLINDERS 1 TO 4 .
Refer to RELEASING THE SLIDE RAIL OF THE UPPER CAMSHAFT CYLINDERS 5 TO 8 .
Refer to DETACHING THE COOLANT HOSES ON CYLINDER HEAD 1 TO 4 AND 5 TO 8 .
Refer to RELEASING THE CYLINDER HEAD BOLTS OF THE CYLINDERS 5 TO 8 AT THE TIMING CASE COVER .
Refer to UNSCREW CYLINDER HEAD BOLTS FOR CYLINDERS 5 TO 8 .
Refer to LIFT CYLINDER HEAD 5 TO 8 WITH LIFTING DEVICE .
Refer to REMOVING CYLINDER HEAD 5 TO 8 USING LIFTING GEAR .
Refer to DISCONNECTING THE PLUG CONNECTION AT CYLINDER HEAD 5-8 .
Refer to RELEASING THE GUIDE RAIL OF THE CYLINDERS 1 TO 4 .
Refer to RELEASING THE CYLINDER HEAD BOLT AT THE TIMING CASE COVER .
Refer to TWIST THE INTAKE CAMSHAFT BY 180 .
Refer to REMOVING CYLINDER HEAD CYLINDER 1 TO 4 .
Refer to INSTALLING THE SPECIAL TOOL FOR CYLINDER HEAD 1-4 .
Refer to INSTALLING THE SPECIAL TOOL FOR CYLINDER HEAD 1-4 .
Refer to RAISING CYLINDER HEAD 1 TO 4 WITH LIFTING GEAR .
Refer to RELEASING THE OIL DRAIN PLUG .
Refer to RELEASING THE CONNECTOR OF THE OIL PAN'S OIL LEVEL SENSOR .
Refer to RELEASING THE OIL PAN SCREW CONNECTION OF THE LOWER OIL PAN .
Refer to REMOVING AIR CONDITIONING COMPRESSOR .
Refer to REMOVING THE CONNECTING BRACKET TOWARDS THE RADIATOR .
Refer to RELEASING THE COOLANT PIPE AT THE CYLINDER HEADS 5 TO 8 .
Refer to UNSCREW THE SCREW CONNECTION FOR THE COOLANT PUMP .
Refer to UNSCREW THE SCREW CONNECTION FOR THE COOLANT PUMP .
Refer to UNSCREW THE SCREW CONNECTION FOR THE COOLANT PUMP .
Refer to UNSCREW THE SCREW CONNECTION FOR THE COOLANT PUMP .
Refer to DISCONNECTING THE COOLANT PUMP COOLANT HOSE .
Refer to DISCONNECTING THE COOLANT PUMP COOLANT HOSE .
Refer to DISCONNECTING THE COOLANT PUMP PLUG CONNECTION .
Refer to RELEASING THE SCREWS ON THE OIL PUMP DRIVE WHEEL .
Refer to REMOVING THE OIL INTAKE SNORKEL .
Refer to RELEASING THE SCREW CONNECTION OF THE OIL TUBE .
Refer to REMOVING THE OIL LINE FROM THE CRANKCASE .
Refer to LOOSENING AND SECURING THE OIL PUMP .
Refer to REMOVING OIL PUMP .
Refer to REMOVING THE OIL LINE (DOUBLE PIPE) FROM THE CRANKCASE .
Refer to UNSCREW SCREW CONNECTION OF THE UPPER OIL SUMP SECTION (ALL-WHEEL DRIVE) .
Refer to LOOSENING THE SCREW CONNECTION ON THE VIBRATION DAMPER .
Refer to MOUNTING THE SPECIAL TOOL ON THE VIBRATION ABSORBER .
Refer to UNSCREW THE CENTRAL BOLT ON THE VIBRATION ABSORBER .
Refer to DETACHING THE COOLANT FEED LINE ON THE EXHAUST TURBOCHARGER FOR CYLINDERS 5 TO 8 .
Refer to RELEASING THE BANJO BOLT FOR THE COOLANT FEED LINE ON THE EXHAUST TURBOCHARGER FOR CYLINDERS 5 TO 8 .
Refer to DETACHING THE COOLANT FEED LINE ON THE EXHAUST TURBOCHARGER FOR CYLINDERS 1 TO 4 .
Refer to LOOSENING OIL FEED LINE FROM EXHAUST TURBOCHARGER OF CYLINDERS 1 TO 4 .
Refer to RELEASING THE OIL FEED LINE FROM THE EXHAUST TURBOCHARGER OF CYLINDERS 5 TO 8 .
Refer to RELEASING THE BANJO BOLT FROM THE COOLANT RETURNING LINE ON THE EXHAUST TURBOCHARGER FOR CYLINDERS 5 TO 8 .
Refer to LOOSENING THE BANJO BOLT OF THE COOLANT RETURNING LINE AT THE EXHAUST TURBOCHARGER FOR CYLINDERS 1 TO 4 .
Refer to REMOVING THE RADIAL SHAFT SEAL WITH THE SPECIAL TOOL .
Refer to UNSCREW THE SCREW CONNECTION 1 ON THE TIMING CASE COVER IN FRONT .
Refer to RELEASING THE SCREW CONNECTION 2 ON THE FRONT TIMING CASE COVER .
Refer to RELEASING THE SCREW CONNECTION 3 ON THE TIMING CASE COVER IN FRONT .

Remove the slide rail (1) .

Courtesy of BMW OF NORTH AMERICA, INC.