12 14 523 Replacing pulse generator on inlet camshaft (M52TU / M54 / M56)

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW 330xi, 2005 BMW 330i, and 2005 BMW 330Ci. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Check stored fault messages.
Switch off ignition.
Remove suction filter housing. See 13 71 000 REMOVE AND INSTALLING INTAKE FILTER HOUSING (M52TU, M54)

NOTE: Arrow shows installation position of pulse generator.

Remove solenoid valve (1) of VANOS adjustment unit for inlet camshaft.

Installation:

Replace sealing ring.

Tightening torque. Refer to 11 36 VARIABLE CAMSHAFT CONTROL .

Fig 1: Removing Solenoid Valve Of VANOS Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) on cable duct (2).

Fig 2: Disconnecting Plug Connection On Cable Duct

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) on pulse generator (2).

Remove pulse generator (2) from cylinder head.

NOTE: To facilitate installation of pulse generator lead:
Secure an approx. 50 cm long auxiliary lead to plug connection of pulse generator.

Feed out end of pulse generator lead but only to such an extent that the auxiliary lead remains in the original routing in the intake system.

Remove pulse generator with lead.

Disconnect auxiliary lead from faulty pulse generator. Secure plug connection of new pulse generator to auxiliary lead.

Using auxiliary lead, feed new lead of pulse generator through to cable duct at bottom.

Installation:

Check sealing ring for possible damage, replace if necessary.

Fig 3: Removing Pulse Generator From Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Read out fault memory of DME control unit.
Now clear the fault memory.