11 36 142 Removing and installing/replacing left inlet VANOS gear (S65)

WARNING: This page is about a different car, the 2011 BMW M3, 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.

IMPORTANT: Central bolts on VANOS gears have left-hand threads.
Do not release the central bolt of the adjustment units without the special tool 119970 GAUGE .
Grease contact surfaces of central bolts with copper paste.

Necessary preliminary tasks:

Remove left CYLINDER HEAD COVER .

Release bolts (1) on cylinder bank 2.

Remove timing case cover (2).

Installation:

Replace seal.

Fig 1: Identifying Timing Case Cover And Bolts

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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.
The procedure for CHECKING TIMING is different from that for adjusting.

Fig 2: Identifying Timing Marks

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Crank engine at central bolt.

Secure crankshaft with special tool 11 5 320 in firing TDC position of cylinder no. 1.

Fig 3: Identifying Crankshaft Position

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Position of inlet camshafts, cyl. 5-8, in firing TDC position of cylinder no. 1.

Dihedron of inlet camshafts is vertical to cylinder axis, letters/numbers on camshafts point upwards (E2).

Fig 4: Identifying Inlet Camshaft Designation

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Position of exhaust camshafts, cyl. 5-8, in firing TDC position of cylinder no. 1.

Dihedron of camshafts is vertical to cylinder axis, letters/numbers on camshafts point upwards (A2).

Fig 5: Identifying Exhaust Camshaft Designation

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Place special tool 11 9 971 on inlet camshaft.

Designation (E2) on dihedron points upwards.

Place special tool 11 9 972 on exhaust camshaft.

Designation (A2) on dihedron points upwards.

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

Fig 6: Securing Camshafts With Special Tools (11 9 971 And 11 9 972)

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Align gearwheels on exhaust adjustment unit with special tool 11 5 370.

Fig 7: Aligning Gearwheels On Exhaust Adjustment Unit Using Special Tool (11 5 370)

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IMPORTANT: Removal/installation is not possible without hexagon socket screw (2).
Hexagon socket screw (1) must not be longer than 10 mm.
Gearwheels of exhaust VANOS gear are pretensioned with a spring.

Insert M5x10 hexagon socket screw on VANOS gear.

Fig 8: Identifying Hexagon Socket Screw

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NOTE: Picture shows cylinders 1-4.

IMPORTANT: CCW thread!
Release central bolt (2).

Installation:

Replace central bolt (2).

Fig 9: Identifying Central Bolt

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Remove exhaust adjustment unit (1).

Fig 10: Identifying Exhaust Adjustment Unit

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Installation:

If the hexagon socket screw is released or forgotten by mistake, the gear teeth can be readjusted with special tool 11 5 370.

Screw in knurled screw on special tool 11 5 370 until gearwheel (1) lines up with bore (see arrow) on thread.

Failure to tension the exhaust VANOS gear (1) will result in rattling noises at idle.

Fig 11: Identifying Exhaust VANOS Gear

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NOTE: Picture shows (S85).

Installation:

Check O-ring (1) on VANOS gear, replace if necessary.

Fig 12: Identifying VANOS Gear O-Ring

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Release chain tensioner (1).

Installation:

Replace sealing ring.

Tightening torque: 11 31 1AZ .

Fig 13: Identifying Chain Tensioner

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IMPORTANT: CCW thread!

Release central bolt (1).

Installation:

Replace central bolt (1).

Remove inlet adjustment unit (2).

Fig 14: Identifying Inlet Adjustment Unit And Central Bolt

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Open plug (1).

Installation:

Replace seal.

Tightening torque: 11 12 4AZ .

Fig 15: Identifying Plug

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Secure screw connection against falling out with special tool 11 5 292.

Release screw connection at chain guide with special tool 11 5 291.

Fig 16: Identifying Special Tool (11 5 291 And 11 5 292)

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Remove inlet adjustment unit.

Lay timing chain (1) on inlet camshaft.

IMPORTANT: Do not bar engine at central bolt.
Risk of damage! to engine valves and timing chain.

Fig 17: Identifying Timing Chain

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EIN Inlet adjustment unit

AUS Exhaust adjustment unit

Fig 18: Identifying Inlet And Exhaust Adjustment Unit

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IMPORTANT: Replace central bolt of adjustment unit.
Central bolt must be fully screwed
once (refer to SCREW FASTENING LIST ).

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

Fig 19: Identifying Crankshaft Position

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Installation:

Coat contact face of new central bolt (1) with copper paste.

Fig 20: Identifying Contact Face Of Central Bolt

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Position VANOS adjustment unit on camshaft.

Hexagon socket screw points upwards.

Insert central bolts (1 and 2) without play.

Fig 21: Inserting Central Bolts

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Remove hexagon socket screw (1) or special tool 11 5 370.

NOTE: Picture shows cylinders 1-4.

Fig 22: Identifying Hexagon Socket Screw

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Secure timing chain tensioning rail.

Fig 23: Identifying Special Tool (11 5 291 And 11 5 292)

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Install chain tensioner (1).

Installation:

Replace sealing ring.

Tightening torque: 11 31 1AZ .

Fig 24: Identifying Chain Tensioner

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Insert central bolt (1) and screw with special tool 00 9 120 TORQUE ANGLE MEASURING DIAL .

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

Fig 25: Securing Central Bolt Using Special Tool (00 9 120)

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Insert central bolt (2) and screw with special tool 00 9 120 TORQUE ANGLE MEASURING DIAL .

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

Fig 26: Securing Central Bolt Using Special Tool (00 9 120)

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Camshafts, cylinders 5-8, remain secured with special tool 119970 GAUGE .

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 and gearwheel play.

Secure crankshaft with special tool 11 5 320.

Fig 27: Identifying Crankshaft Position

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Cylinders 5 to 8:

Always start screwing on the inlet side.

Secure central bolt (1) with special tool 00 9 120 TORQUE ANGLE MEASURING DIAL .

IMPORTANT: Central bolt final tightening.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°

Fig 28: Securing Central Bolt Using Special Tool (00 9 120)

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Secure central bolt (1) with special tool 00 9 120 TORQUE ANGLE MEASURING DIAL .

IMPORTANT: Central bolt final tightening.

Joining 20 Nm
Settling torque 80 Nm
Torsion angle 200°

Fig 29: Securing Central Bolt Using Special Tool (00 9 120)

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Remove all special tools.

Check TIMING , cylinders (5 to 8).

Assemble engine.