11 31 575 Adjusting camshaft timing (S65)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 120
11 5 320
11 9 970
11 9 971
11 9 972

See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .

See ENGINE - SPECIAL TOOLS .

IMPORTANT: Central bolts on VANOS gears have left-hand threads.

IMPORTANT: The procedure for adjusting the timing is different from that for checking the timing.
The letters/numbers on the camshafts (E1 and A1) and (E2 and A2) must point upwards.
Do not release the central bolts of the adjustment units without the special tool 11 9 970 (risk of damage!).
If the special tool 11 9 970 cannot be positioned on the dihedron of the camshafts, bar the engine at the central bolt until the special tool 11 9 970 can be secured on the cylinder head.

Release bolts (1) on cylinder bank 1.

Remove timing case cover (2).

Installation:

Replace seal.

Fig 1: Identifying Cylinder Bank 1 Bolts And Timing Case Cover

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Release bolts (1) on cylinder bank 2.

Remove timing case cover (2).

Installation:

Replace seal.

Fig 2: Identifying Cylinder Bank 2 Bolts And Timing Case Cover

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IMPORTANT: Both inlet and exhaust camshafts can be adjusted in the 1st cylinder firing TDC position.

Danger of mixing up both special tool bores.

10° before TDC
TDC= top dead center.

Before the crankshaft can be secured, the gauges 11 9 970 must be positioned on the camshafts.

Rotate crankshaft at central bolt.

Fig 3: Identifying Timing Marks

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IMPORTANT: Always start timing with bank 1 (cylinders 1-4).

Position of inlet camshaft, cylinders 1-4.

Designation (E1) on dihedron points upwards.

Fig 4: Identifying Letters/Numbers On Camshafts Point (E1)

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Position of exhaust camshaft, cylinders 1-4.

Designation (A1) on dihedron (1) points upwards.

Fig 5: Identifying Letters/Numbers (A1) On Camshafts

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Rotate inlet camshaft with open-end wrench (1) with minimal effort at hexagon head in direction of arrow until special tool 11 9 972 can be attached.

Designation (E1) on dihedron points upwards.

Secure special tool 11 9 972 with bolts (2) on cylinder head to 10 Nm.

Fig 6: Rotating Inlet Camshaft With Open-End Wrench

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Rotate exhaust camshaft with open-end wrench with minimal effort in direction of arrow until special tool 11 9 971 can be attached.

Designation (A1) on dihedron points upwards.

Secure special tool 11 9 971 with bolts (1) on cylinder head to 10 Nm.

Fig 7: Identifying Special Tool (11 9 971) On Cylinder Head Bolts

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IMPORTANT: CCW thread!

Release central bolt (1).

Release central bolt (2).

Installation:

Replace central bolts (1 and 2).

Fig 8: Identifying Central Bolts

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IMPORTANT: Rotate crankshaft at central bolt back until special tool 11 5 320 can be secured in the 10° position.

Fig 9: Rotating Crankshaft At Central Bolt With Special Tool (11 5 320)

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IMPORTANT: Replace central bolts of adjustment units.
Central bolts must be fully screwed once.

Cylinders 1 to 4:

Always start screwing on the inlet side.

Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Screw central bolt fully once.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°
Unscrew central bolt.
Preload central bolt to 10 Nm.

Fig 10: Securing Central Bolt With Special Tool (00 9 120)

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Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Screw central bolt fully once.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°
Unscrew central bolt.
Preload central bolt to 10 Nm.

Fig 11: Securing Central Bolt With Special Tool (00 9 120)

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Camshafts, cylinders 1-4, remain secured with special tool 11 9 970 .

Release special tool 11 5 320 and continue barring engine at central bolt 10° to firing TDC position of cylinder no. 1 .

Installation:

This minimizes timing chain play.

Secure crankshaft with special tool 11 5 320 .

Fig 12: Identifying Special Tool (11 5 320) On Vibration Damper

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Cylinders 1 to 4:

Always start screwing on the inlet side.

Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Central bolt final tightening.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°

Fig 13: Securing Central Bolt With Special Tool (00 9 120)

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Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Central bolt final tightening.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°

IMPORTANT: Remove all special tools.

Fig 14: Securing Central Bolt With Special Tool (00 9 120)

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Position of inlet camshaft, cylinders 5-8.

Designation (E2) on dihedron points upwards.

Installation:

If necessary, crank at crankshaft central bolt.

Fig 15: Identifying Letters/Numbers On Camshafts Point Upwards (E2)

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Position of exhaust camshaft, cylinders 5-8.

Designation (A2) on dihedron points upwards.

Fig 16: Identifying Letters/Numbers On Camshafts Point Upwards (A2)

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Secure inlet camshaft with special tool 11 9 971 .

Secure exhaust camshaft with special tool 11 9 972 .

Secure special tools 11 9 971 and 11 9 972 with bolts (1) on cylinder head to 10 Nm.

Fig 17: Identifying Special Tools (11 9 971) And (11 9 972)

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IMPORTANT: CCW thread!

Release central bolt (1).

Release central bolt (2).

Installation:

Replace central bolts (1 and 2).

Fig 18: Identifying Central Bolts

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IMPORTANT: Rotate crankshaft at central bolt back until special tool 11 5 320 can be secured in the 10° position.

Fig 19: Identifying Special Tool (11 5 320)

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IMPORTANT: Replace central bolts of adjustment units.
Central bolts must be fully screwed once.

Cylinders 5 to 8:

Always start screwing on the inlet side.

Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Screw central bolt fully once.

Fig 20: Securing Central Bolt With Special Tool (00 9 120)

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Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°
Unscrew central bolt.
Preload central bolt to 10 Nm.

Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Screw central bolt fully once.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°
Unscrew central bolt.
Preload central bolt to 10 Nm.

Fig 21: Securing Central Bolt With Special Tool (00 9 120)

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Camshafts, cylinders 5-8, remain secured with special tool 11 9 970 .

Release special tool 11 5 320 and continue barring engine at central bolt 10° to firing TDC position of cylinder no. 1 .

Installation:

This minimizes timing chain play.

Secure crankshaft with special tool 11 5 320 .

Fig 22: Identifying Special Tool (11 5 320) On Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinders 5 to 8:

Always start screwing on the inlet side.

Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Central bolt final tightening.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°

Fig 23: Securing Central Bolt With Special Tool (00 9 120)

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Secure central bolt (1) with special tool 00 9 120 .

IMPORTANT: Central bolt final tightening.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°

Remove all special tools.

Fig 24: Securing Central Bolt With Special Tool (00 9 120)

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Remove all special tools.

Check timing.

Assemble engine.