Memory and Difference Types of Memory

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  • Topic: Camshaft, Spline, BMW
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  • Published : December 3, 2012
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11 36 090

Removing and installing/replacing toothed
shafts of VANOS gear on left and right (S62)

Special tools required:
11 2 300

11 7 120

11 7 130

11 7 150

11 7 200

12 6 050

12 6 410

12 6 411


Read fault memory and make a documentary record.
Open drain plug on radiator. Unfasten drain plug for coolant on right engine block. Drain and dispose of coolant.
Installation:
Replace drain plug sealing ring on engine block.
Tightening torque, refer to 11 11 5AZ.
Top up coolant. Vent cooling system and check for leaks.

Remove intake filter housing upper section with air-mass flow sensor.
Remove intake air manifold.
Remove both cylinder head covers.
Remove all spark plugs.
Remove water hoses between radiator and thermostat housing.
Remove fan clutch with fan impeller and fan cowl.

RA Removing and installing/replacing toothed shafts of VANOS gear on left and right Issue status (01/2005) Valid only until next CD is issued

BMW AG - TIS
Copyright

09.05.2008 09:09
Page - 1 -

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.

Note:
Joint removal and installation of the VANOS adjustment unit
on cylinder banks 1 to 4 and 5 to 8 requires a step-bystep procedure. The work steps alternate between cylinder banks 1 to 4
and 5 to 8.
Removal:
Removal of the VANOS adjustment unit and the toothed shafts is described separately from installation. The assembly sequence for removal and installation is different.
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 both cylinder banks 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 .

RA Removing and installing/replacing toothed shafts of VANOS gear on left and right Issue status (01/2005) Valid only until next CD is issued

BMW AG - TIS
Copyright

09.05.2008 09:09
Page - 2 -

Cylinder bank 1 to 4:
Remove oil line from VANOS adjustment unit.

Cylinder bank 1 to 4:
Fit special tool 11 7 130

to VANOS adjustment unit.

Connect compressed air (2 to 8 bar).

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.
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.

RA Removing and installing/replacing toothed shafts of VANOS gear on left and right Issue status (01/2005) Valid only until next CD is issued

BMW AG - TIS
Copyright

09.05.2008 09:09
Page - 3 -

Cylinder bank 1 to 4:
Press and hold down toggle switch button 1 on special tool
12 6 050 .
Simultaneously rotate inlet camshaft at hexagon against direction of rotation up to stop.
Note:
The splines in the VANOS gear are now in contact; the inlet
camshaft cannot be rotated further.

Cylinder bank 1 to 4:
Alternately press toggle switch buttons 3 and 4 several times on special tool 12 6 050 .

Cylinder bank 1 to 4:
Press and hold down toggle switch button 3 on special tool
12 6 050 .
Simultaneously rotate exhaust camshaft at hexagon against
direction of rotation up to stop.
Note:
The splines in the VANOS gear are now in contact; the
exhaust camshaft cannot be rotated further.

Cylinder bank 5 to 8:
Remove oil line from VANOS adjustment unit.

RA Removing and installing/replacing toothed shafts of VANOS gear on left and right Issue status (01/2005)...
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