Removing crankshaft

WARNING: Working on fuel system .
Risk of fire! Danger of explosion!

When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
No fire, sparks, open flames or smoking.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work

Refer to RELEASING THE OIL DRAINING PLUG .
Refer to REMOVING THE OIL FILTER ELEMENT .
Refer to REMOVING THE FRONT AXLE COMPLETELY WITH THE ENGINE AND TRANSMISSION .
Refer to INSTALLING THE ENGINE ON THE ASSEMBLY JIG .
Refer to REMOVING FLYWHEEL .
Refer to REMOVING DRIVE BELT .
Refer to REMOVING THE BELT TENSIONER .
Refer to REMOVING THE AIR CONDITIONING COMPRESSOR (ENGINE REMOVED) .
Refer to REMOVING THE COOLANT PUMP .
Refer to RELEASING LEFT CHARGE AIR LINE PARTIALLY .
Refer to PARTIALLY RELEASING THE RIGHT CHARGE AIR LINE .
Refer to REMOVING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to REMOVING BOTH CHARGE AIR COOLERS .
Refer to REMOVING RIGHT CLEANING AIR PIPE .
Refer to REMOVING LEFT CLEANING AIR PIPE .
Refer to REMOVING ALL IGNITION COILS .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING RIGHT HIGH-PRESSURE PUMP .
Refer to REMOVING LEFT HIGH PRESSURE PUMP .
Refer to PARTIALLY UNDOING WIRING HARNESS FROM RIGHT CYLINDER HEAD COVER .
Refer to RELEASING THE WIRING HARNESS SECTION FROM THE LEFT HAND CYLINDER HEAD COVER .
Refer to REMOVING RIGHT RAIL .
Refer to REMOVING THE HIGH-PRESSURE RAIL ON THE LEFT .
Refer to REMOVING THE INJECTORS FOR CYLINDERS 1 TO 4 .
Refer to REMOVING THE INJECTORS FOR CYLINDERS 5 TO 8 .
Refer to REMOVING VANOS SOLENOID ACTUATOR, EXHAUST OF CYLINDER BANK 1 .
Refer to REMOVING THE VANOS SOLENOID ACTUATOR INTAKE OF CYLINDER BANK 1 .
Refer to REMOVING VANOS SOLENOID ACTUATOR, EXHAUST OF CYLINDER BANK 2 .
Refer to REMOVING VANOS SOLENOID ACTUATOR, INTAKE OF CYLINDER BANK 2 .
Refer to REMOVING THE LEFT AND RIGHT EXHAUST TURBOCHARGER .
Refer to REMOVING FRONT HEAT SHIELD .
Refer to REMOVING THE OIL FEED LINE AT THE EXHAUST TURBOCHARGER FOR CYLINDERS 5 TO 8 .
Refer to REMOVING RIGHT CYLINDER HEAD COVER .
Refer to REMOVING LEFT CYLINDER HEAD COVER .
Refer to REMOVING THE SEALING CAP ON THE CYLINDER HEAD OF THE CYLINDER BANK 2 .
Refer to REMOVING THE SEALING CAP ON THE CYLINDER HEAD OF THE CYLINDER BANK 1 .
Refer to MOVING THE CRANKSHAFT TO THE INSTALLATION POSITION TO ADJUSTING THE TIMINGS .
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 (SET VALVE TIMINGS) .
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 PARTIALLY RELEASING THE GUIDE TUBE FOR THE OIL DIPSTICK .
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 FIXING THE ENGINE IN THE INSTALLATION POSITION ON CYLINDER 1 (SET VALVE TIMINGS) .
Refer to REMOVING BOTH RIGHT VANOS ADJUSTERS .
Refer to REMOVING SPECIAL TOOL FOR FIXING CAMSHAFTS ON BANK 1 .
Refer to REMOVING THE SPECIAL TOOL TO PRETENSION THE TIMING CHAIN AT CYLINDER BANK 1 .
Refer to REMOVING RIGHT CYLINDER HEAD .
Refer to REMOVING THE VIBRATION DAMPER .
Refer to REMOVING LOWER OIL PAN SECTION .
Refer to REMOVING OIL PUMP .
Refer to REMOVING FRONT AXLE DIFFERENTIAL .
Refer to REMOVING UPPER OIL SUMP SECTION, ENGINE REMOVED .
Refer to REMOVING THE PISTON WITH CONNECTING ROD .

Removing sealing cap with radial shaft seal (oil pan removed)

Loosen screws (1).
Loosen screws (2).
Remove the sealing cap with radial shaft seal (3).

Courtesy of BMW OF NORTH AMERICA, INC.
Remove the roller chain (1).

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

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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).

Fig 1: Carrier Plate Screws Loosening Sequence
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Release the screw connection 2 on the front timing case cover
Loosen screws in the order (9) to (3).

Fig 2: Front Timing Case Cover Screws Loosening Sequence
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Release the screw connection 3 on the timing case cover in front
Loosen screws in the order (1) to (2).
Remove timing case cover.

Fig 3: Timing Case Cover Screws Loosening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.
Remove the slide rail (1).

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Remove the tensioning rail of the timing chain for cylinder 1-4
Remove the tensioning rail (1) with the timing chain (2) from the crankshaft gearing.

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Removing the slide rail of the timing chain for cylinders 5 to 8
Remove the slide rail (1).

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Remove the tensioning rail of the timing chain for cylinder 5-8
Remove the tensioning rail (1) with the timing chain (2) from the crankshaft gearing.

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Observe the arrangement of the main bearing cap as well as the assignment of the crankshaft bearing caps from (1) to (5).

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Loosen the main bearing transverse screws on the spacer bolts (1), the screws (2), and the spacer screw (3).

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Unscrew all threaded bushing sleeves (1).

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NOTE: The operations shown only for one side must be carried out on both sides.
Loosen screws (1).
Release the collar screws (M8) in the sequence (10) to (1).

Fig 4: Collar Screws (M8) Loosening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.
Release the collar screws (M11) in the sequence (10) to (1).
Remove the main bearing cap.
CAUTION:
Component with heavyweight .
Injury hazard!
- Note component's center of gravity.
- Support component using a jack.
- Secure component against falling off the jack.
Fig 5: Collar Screws (M11) Loosening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
The work must be performed with vehicle care to prevent component damage.
Remove the crankshaft with a support person (weight approx. 25 kg).
Lift out crankshaft and set down safely (secure against turning).