11 12 105 Removing and installing left cylinder head (S62)

WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 120
11 2 250
11 2 300
11 7 120
11 7 130
11 7 150
11 7 200
12 6 050
12 6 410
12 6 411

Open drain plug on radiator. Open drain plug for coolant on right and left sides of engine block. Drain and dispose of coolant.

Installation:

Replace sealing rings for drain plugs on engine block.

Tightening torque, 25 Nm.

Top up coolant. Vent cooling system and check for leaks. Refer to 17 00 005 DRAINING AND ADDING COOLANT (S62) .

Remove left intake filter housing with air-mass flow sensor. Refer to 13 71 010 REMOVING AND INSTALLING LEFT INTAKE FILTER HOUSING (S62) .

Remove intake air manifold. Refer to 11 61 050 Removing and installing intake air manifold (S62) .

Remove both cylinder head covers. Refer to 11 12 004 Removing and installing/sealing both cylinder head covers (S62) .

Remove all spark plugs.

Remove fan clutch with fan impeller and fan cowl. Refer to 11 52 020 Removing and installing or replacing fan clutch (S62) and 17 11 031 REPLACING FAN COWL (S62) .

Disconnect plug connection on pulse generators 1 and 2.

Fig 1: Disconnecting Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Detach cable strip from injector valves; at same time pull cable channel 3 straight upwards and feed out of bracket (4). Release screws and remove bracket 4. Disconnect plug connection 5.

Place cable channel 3 to one side.

NOTE: Fuel line (6) is screwed to bracket (4).
Illustration with engine removed.

NOTE: The work step Removing throttle actuator describes the removal of the cable channel and fuel line on cylinder bank 5 to 8.

Remove throttle actuator. Refer to 12 72 010 REMOVING AND INSTALLING/REPLACING THROTTLE ACTUATOR .

CAUTION: The work step Removing and installing throttle actuator describes important instructions on installing the pull rods and throttles.

Remove molded hose from supplementary air distributor of throttle (cylinder bank 5 to 8).
Remove knock sensor cable guide from return line (cylinder bank 5 to 8).
Remove heating feed line from engine block and from both return lines on cylinder heads.
Remove hose for brake booster from throttle body, cylinder (8).
Disconnect vacuum hose for pressure regulator.

Remove oil lines (1) from cylinder head on cylinder banks 1 to 4 and 5 to 8.

NOTE: The oil lines (1) of cylinder banks 1 to 4 and 5 to 8 are different.

Fig 2: Removing Oil Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Removal

Removal of cylinder head is described separately from installation.

NOTE: Cylinder head bolts on cylinder 8 are only accessible after signal rings have been removed.

CAUTION: Risk of damage to pulse generators (2).
Remove pulse generator (2) of exhaust and inlet camshafts or release screws (1) with a long socket.

Fig 3: Removing Pulse Generators

Courtesy of BMW OF NORTH AMERICA, INC.

Grip camshaft at hexagon head and release banjo bolt (1).

Fig 4: Releasing Banjo Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Remove signal rings.

When the engine is switched off, VANOS moves the camshafts to a position which is advantageous to engine starting.

CAUTION: Before the VANOS adjustment unit is removed, the camshafts on cylinder bank 5 to 8 must be rotated back to their initial position.

Rotate crankshaft in direction of rotation as far as ignition TDC position of cylinder 1. Secure vibration damper in position with special tool 11 2 300.

Fig 5: Securing Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Remove oil line from VANOS adjustment unit.

Fig 6: Removing Oil Line From Vanos Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Fit special tool 11 7 130 to VANOS adjustment unit.

Connect compressed air (2 to 8 bar).

Fig 7: Fitting Special To Vanos Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Unclip plug connection for solenoid valves on cylinder bank 5 to 8 from bracket.

Connect special tool 12 6 050 in conjunction with special tool 12 6 411 (from special tool kit 12 6 410) to solenoid valves on cylinder bank 5 to 8. Connect special tool 12 6 411 to correct terminals on car battery.

Fig 8: Connecting Special Tool To Solenoid Valves

Courtesy of BMW OF NORTH AMERICA, INC.

Alternately press toggle switch buttons 4 and 3 several times on special tool 12 6 050.

CAUTION: Do not damage the cylinder head.
If necessary, machine open-end wrench accordingly.

Fig 9: Fitting Open-End Wrench

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Press and hold down toggle switch button 4 on special tool 12 6 050.

At same time, rotate inlet camshaft at hexagon drive against direction of rotation as far as it will go.

NOTE: Spline teeth in VANOS gear are engaged; and inlet camshaft cannot be rotated further.

Fig 10: Rotating Inlet Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Alternately press toggle switch buttons 2 and 1 several times on special tool 12 6 050.

Fig 11: Identifying Toggle Switch Buttons

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Press and hold down toggle switch button 2 on special tool 12 6 050.

At same time, rotate exhaust camshaft at hexagon drive against direction of rotation as far as it will go.

NOTE: Spline teeth in VANOS gear are engaged; and exhaust camshaft cannot be rotated further.

Fig 12: Rotating Exhaust Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 2 300. Rotate crankshaft in direction of rotation a further revolution up to overlap TDC position.

Cylinder bank 5 to 8:

Slacken six accessible bolts two turns.

Fig 13: Slackening Accessible Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Crank engine at central bolt in direction of rotation until 1st cylinder is at TDC firing position. Secure vibration damper in position with special tool 11 2 300.

Fig 14: Securing Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Slacken remaining six bolts two turns.

Fig 15: Slackening Remaining Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

NOTE: The camshafts have an opening. The 1st bearing caps have a locating bore.

Align camshaft opening to locating bore in bearing cap and secure in position with special tool 11 7 120.

Fig 16: Aligning Camshaft Opening

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Release screws on VANOS adjustment unit.

Fig 17: Releasing Screws On Vanos Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Carefully lever out VANOS adjustment unit at "intended" openings with a screwdriver on left and right.

Fig 18: Identifying Vanos Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Pull off VANOS adjustment unit.

Fig 19: Pulling Off Vanos Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 2 300.

Fig 20: Removing Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: No piston must be in the TDC position when the cylinder head is removed.

When the VANOS adjustment unit is removed, the chain wheels of the inlet and exhaust camshafts are not non-positively connected to the camshafts. Camshafts on cylinder bank 5 to 8 do not rotate.

Crank engine at central bolt against direction of rotation to 45° before TDC position:

Fig 21: Cranking Engine At Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Remove coolant thermostat. Refer to 11 53 000 Removing and installing/replacing coolant thermostat (S62) .

Remove left timing case cover (cylinder bank 5 to 8). Refer to 11 14 080 Removing and installing timing case cover, top left (S62) .

Remove chain tensioning piston. Refer to 11 31 090 Removing and installing/replacing piston for chain tensioner (S62) .

Cylinder bank 5 to 8 (inlet side):

Remove slackened bolts. Take off spacer ring (1).

Fig 22: Removing Slackened Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

NOTE: The spline hub (1) accommodates a plate spring and a supporting ring.
Take care: the supporting ring can easily fall out when removed.

Remove spline hub (1) with plate spring and supporting ring.

Fig 23: Removing Spline Hub

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Detach inlet chain wheel (3) from centering sleeve.

Fig 24: Identifying Inlet Chain Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

Keep inlet chain wheel (3) and chain tensioned.

Feed out inlet chain wheel (3).

Secure chain against slipping down.

Cylinder bank 5 to 8:

Detach sliding rail from cylinder head.

Fig 25: Detaching Sliding Rail From Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: To release cylinder head bolts: Use special tool 11 2 250.
At narrow points, use a socket with 3/8" drive and a short extension.

Release cylinder head bolts in sequence 10 to 1.

Lift off cylinder head.

Fig 26: Identifying Cylinder Head Bolt Removal Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Installation

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and engine block, if necessary, remove gasket debris using a wooden scraper.

Make sure no gasket debris drops into the oil and coolant ducts.

Threaded bores in engine block must be free of dirt and oil (risk of cracking).

Coat joint between engine block and timing case cover with Drei Bond 1209 (refer to BMW Parts Service ).

Fig 27: Coating Joint Between Engine Block And Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Check dowel sleeves for damage and correct installation position.

Fig 28: Checking Dowel Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Install new cylinder head seal.

Put the cylinder head on. Install new cylinder head bolts. Do not wash off screw coating.

NOTE: To tighten down cylinder head bolts: Use special tool 11 2 250.
At narrow points, use a socket with 3/8" drive and a short extension.
Use special tool 00 9 120 as a torsion angle bracket.

Fig 29: Installing Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down cylinder head bolts in sequence 1 to 10.

Fig 30: Left Cylinder Head Bolts Tightening/Loosening Sequence (S62)

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, refer to 11 12 8AZ 11 12 CYLINDER HEAD WITH COVER .

Cylinder bank 5 to 8:

Insert the screw and tighten down the slide rail.

Fig 31: Tightening Down Slide Rail

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Coat all sliding surfaces on VANOS gear with engine oil as antiseize agent.

Cylinder bank 5 to 8 (inlet side):

Keep timing chain tensioned and feed on inlet chain wheel (3).

Fig 32: Identifying Inlet Chain Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The position of the bores in the inlet chain wheel (3) can be freely selected; they do not have to line up with the threads yet.

Position inlet chain wheel (3) on centering sleeve. Do not insert "any" screws into inlet chain wheel (3) yet.

NOTE: If a chain tensioning piston is reused, the oil chamber in the chain tensioner must be drained.

Install chain tensioning piston. Refer to 11 31 090 Removing and installing/replacing piston for chain tensioner (S62) .

"No" screws are inserted in inlet sprocket wheel yet. Inlet sprocket wheel must not slip off centering sleeve.

Rotate crankshaft from 45° before TDC position in direction of rotation up to TDC firing position. Secure vibration damper in position with special tool 11 2 300.

Fig 33: Securing Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Check position of inlet chain wheel (3) to threads.

Fig 34: Aligning Secondary Chain Drive

Courtesy of BMW OF NORTH AMERICA, INC.

In event of large deviation (thread not visible):

Detach inlet sprocket wheel (3) from centering sleeve; in so doing, keep timing chain tensioned, realign inlet sprocket wheel (3) and refit.

In event of small deviation:

Position special tool 11 7 150 at toothed sleeve on exhaust side.

Align secondary chain drive to bores of inlet chain wheel (3).

Cylinder bank 5 to 8 (inlet side):

Version up to 9/2001

CAUTION: Risk of mixing up parts.

NOTE: Plate spring (2) and supporting ring (3) form a set and may only be fitted together.

Thickness of plate spring (2) = 0.85 mm.

Thickness of supporting ring (3) = 3.55 mm.

Fig 35: Identifying Plate Spring And Supporting Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Version from 9/2001

CAUTION: Risk of mixing up parts.

NOTE: Plate spring (4) and supporting ring (5) form a set and may only be fitted together.

Thickness of plate spring (4) = 1.25 mm.

Thickness of supporting ring (5) = 3.20 mm.

Plate spring (4) and supporting ring (5) may also be fitted in engine before 9/2001.

Fig 36: Identifying Plate Spring And Supporting Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Version up to 9/2001

CAUTION: Observe installation direction of plate spring (2).

NOTE: The small support diameter of the plate spring (2) points in the direction of the supporting ring (3). Supporting ring is supported with retaining lugs in spline hub (1).

Insert plate spring (2) and supporting ring (3) in spline hub (1).

Fig 37: Inserting Plate Spring And Supporting Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Version from 9/2001

CAUTION: Observe installation direction of plate spring (4).

The small support diameter of the plate spring (4) points in the direction of the spline hub (1). Supporting ring is supported with retaining lugs in spline hub (1).

Insert plate spring (4) and supporting ring (5) in spline hub (1).

Fig 38: Inserting Plate Spring And Supporting Ring In Spline Hub

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Install spline hub (1) with plate spring and supporting ring.

NOTE: Align spline hub (1) so that oil pump is positioned as shown in picture.

Fig 39: Identifying Spline Hub

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (inlet side):

Fit spacer ring (2).

Insert all bolts and initially tighten without play.

Then slacken bolts again until spline hub (1) can be moved with fingers.

Fig 40: Identifying Spacer Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Install left timing case cover. Refer to 11 14 080 Removing and installing timing case cover, top left (S62) .

CAUTION: Risk of mixing up parts.

The VANOS adjustment units of cylinder banks 1 to 4 and 5 to 8 are different.

Cylinder bank 1 to 4
Cylinder bank 5 to 8

Fig 41: Identifying Vanos Adjustment Units

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Install VANOS adjustment unit so that solenoid valve cables are at bottom.

Oil is sprayed when splined shafts are pressed back. Cover bore (1) with a cloth.

Connect special tool 12 6 050 in conjunction with special tool 12 6 411 (from special tool kit 12 6 410) to solenoid valves of VANOS adjustment unit. Connect special tool 12 6 411 to correct terminals on car battery.

Fig 42: Actuating Solenoid Valves

Courtesy of BMW OF NORTH AMERICA, INC.

Press buttons 2 and 4 on special tool 12 6 050. Solenoid valves are actuated.

Press splined shafts by hand up to stop into initial position.

Replace O-rings (1 and 2) on VANOS adjustment unit.

Coat O-rings (1) with oil as antiseize agent.

CAUTION: O-rings (2) fall out very easily, secure with grease if necessary.

Fig 43: Identifying O-Rings

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Turn spline hubs (1) of inlet and exhaust camshafts to right limit position.

Fig 44: Turning Spline Hubs

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Attach VANOS adjustment unit.

Fig 45: Attaching VANOS Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

CAUTION: Make sure both VANOS splined shafts remain in initial position during installation.

Rotate splined shafts of inlet and exhaust sides until spur toothing is engaged.

Push VANOS adjustment unit with splined shaft into VANOS gear until helical cut splines (2) are positioned shortly before meshing with spline hub (1).

Fig 46: Identifying Helical Cut Splines

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8 (exhaust side):

If the helical cut splines cannot be pushed into the spline hub (1):

Place special tool 11 7 150 on bore in spline hub (1). Rotate spline hub (1) against direction of rotation until splined shaft (2) is positioned with spline hub (1) exactly "tooth-to-tooth gap".

Fig 47: Rotating Spline Hub

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: The "first" matching tooth must engage.

Cylinder bank 5 to 8 (inlet side):

Place special tool 11 7 150 on bore in spline hub (1). Rotate spline hub (1) against direction of rotation until splined shaft (2) is positioned with spline hub (1) exactly "tooth-to-tooth gap".

Fig 48: Rotating Spline Hub

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: The "first" matching tooth must engage.

Cylinder bank 5 to 8 (inlet side):

Align radial piston pump to driver on spline hub.

Fig 49: Aligning Radial Piston Pump To Driver On Spline Hub

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Picture shows a schematic representation.

Push on VANOS adjustment unit only until O-rings of VANOS adjustment unit rest against timing case cover.

Fig 50: Pushing On VANOS Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: If this position is not reached, realign position of radial piston pump to driver.

CAUTION: Insert one bolt each on left and right and initially tighten without play. The bolts serve to locate the VANOS adjustment unit in position. Do "not" tighten down screws yet. VANOS adjustment unit must "not" rest against timing case cover.

Cylinder bank 5 to 8:

NOTE: To tighten down screws on VANOS gear: Use special tool 11 7 200.

Tighten down six accessible screws (three on exhaust side and three on inlet side) on VANOS gear to 10 Nm.

Then slacken all six screws again by a 1/4 turn.

Fig 51: Tightening Down Accessible Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Install all bolts. Alternately tighten down bolts in 1/2 turn increments carefully and evenly until VANOS adjustment unit rests against timing case cover.

Tighten down all bolts.

Fig 52: Identifying Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 2 300.

Fig 53: Removing Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: The camshafts remain locked in position with special tool 11 7 120.
Carefully rotate engine at central screw against direction of rotation until there is noticeable resistance and spline hubs are at the stop.

NOTE: This procedure creates compensation for play. Only with this compensation for play is the timing diagram correctly set.

Then crank engine again in direction of rotation until 1st cylinder is at TDC firing position.

Secure vibration damper in position with special tool 11 2 300.

Fig 54: Securing Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

NOTE: To tighten down screws on VANOS gear: Use special tool 11 7 200.

Tighten down six accessible screws (three on exhaust side and three on inlet side) on VANOS gear to 10 Nm.

Fig 55: Tightening Down Accessible Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Remove special tool 11 7 120.

Fig 56: Removing Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 2 300. Crank engine at central bolt in direction of rotation a further revolution up to overlap TDC position.

Cylinder bank 5 to 8:

NOTE: To tighten down screws on VANOS gear: Use special tool 11 7 200.

Tighten down remaining six bolts on VANOS gear to 10 Nm.

Fig 57: Tightening Down Bolts On VANOS Gear

Courtesy of BMW OF NORTH AMERICA, INC.

Rotate crankshaft in direction of rotation as far as ignition TDC position of cylinder 1. Secure vibration damper in position with special tool 11 2 300.

Fig 58: Securing Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Signal rings of inlet and exhaust camshafts are different.

Signal ring of inlet camshaft with one dowel pin
Signal ring of exhaust camshaft with two dowel pins

Fig 59: Identifying Signal Rings

Courtesy of BMW OF NORTH AMERICA, INC.

Fit signal rings, align bores (1 and 2).

Install banjo bolt (1).

Fig 60: Installing Banjo Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Grip camshaft at hexagon head and tighten down banjo bolt (1).

Tightening torque, 50 Nm.

Cylinder bank 1 to 4:

Remove oil line from VANOS adjustment unit.

Fig 61: Removing Oil Line From VANOS Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Fit special tool 11 7 130 to VANOS adjustment unit.

Connect compressed air (2 to 8 bar).

Fig 62: Connecting Compressed Air

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Disconnect plug connection for solenoid valves on cylinder bank 1 to 4.

Connect special tool 12 6 050 in conjunction with special tool 12 6 411 (from special tool kit 12 6 410) to solenoid valves on cylinder bank 1 to 4. Connect special tool 12 6 411 to correct terminals on car battery.

Fig 63: Connecting Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Alternately press toggle switch buttons 1 and 2 several times on special tool 12 6 050.

CAUTION: Do not damage the cylinder head.
If necessary, machine open-end wrench accordingly.

Fig 64: Fitting Open-End Wrench

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Press and hold down toggle switch button 1 on special tool 12 6 050.

At same time, rotate inlet camshaft at hexagon drive against direction of rotation as far as it will go.

NOTE: Spline teeth in VANOS gear are engaged; and inlet camshaft cannot be rotated further.

Fig 65: Rotating Inlet Camshaft At Hexagon Drive

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Alternately press toggle switch buttons 3 and 4 several times on special tool 12 6 050.

Fig 66: Locating Toggle Switch Buttons

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Press and hold down toggle switch button 3 on special tool 12 6 050.

At same time, rotate exhaust camshaft at hexagon drive against direction of rotation as far as it will go.

NOTE: Spline teeth in VANOS gear are engaged; and exhaust camshaft cannot be rotated further.

Fig 67: Rotating Exhaust Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Pull special tool 11 2 300 back until vibration damper is no longer secured in position.

Crank engine "twice" in direction of rotation until 1st cylinder is at TDC firing position.

Secure vibration damper in position with special tool 11 2 300.

Fig 68: Securing Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Check camshaft adjustment.

NOTE: Groove on 1st bearing cap is a little wider than groove in camshaft.
Groove of inlet and exhaust camshafts must be inside groove on 1st bearing cap.

Fig 69: Locating Groove On Bearing Cap

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Check camshaft adjustment.

NOTE: Groove on 1st bearing cap is a little wider than groove in camshaft.
Groove of inlet and exhaust camshafts must be inside groove on 1st bearing cap.

If necessary, adjust camshaft timing. Refer to 11 31 505 Adjusting camshaft timing (S62) .

Fig 70: Locating Groove On Bearing Cap

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 5 to 8:

Replace sealing rings.

Fit oil line to VANOS adjustment unit.

Tightening torque, 13 Nm.

Fig 71: Installing Oil Line

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder bank 1 to 4:

Remove special tool 11 7 130 from VANOS adjustment unit.

Replace sealing rings.

Attach oil line to VANOS adjustment unit.

Tightening torque, 13 Nm.

Assemble engine.

Fig 72: Attaching Oil Line

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: There is air in the VANOS system once it is opened.
In the first few seconds after startup this results in a clearly discernible "rattling noise".
This rattling noise does "not" indicate incorrect assembly.
The rattling noise will disappear as soon as the oil pressure has built up and the system has vented.