BMW X5 Owners & Service Manuals

BMW X5: Replacing Exhaust Camshaft Pulse Generator (N52, N52K, N51, N53)

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection).

Necessary preliminary tasks:

Unlock plug (1) and remove. Release bolt.

Release bolt.

Electronic Switching On Or Control Unit
Fig. 18: Locating Ignition Coil Covers Screws And Holder

Installation:

Electronic Switching On Or Control Unit
Fig. 19: Identifying Plug Connector

Replace screw.

Tightening torque 12 14 4AZ.

Remove pulse generator (2).

Electronic Switching On Or Control Unit
Fig. 20: Locating Pulse Generator

NOTE: Check stored fault messages.

Now clear the fault memory.

REPLACING PULSE GENERATOR ON EXHAUST CAMSHAFT (N52K)

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection).

Necessary preliminary tasks:

Lever out expansion rivets (1).

Press lock (2) and raise intake duct (3).

Detach intake duct (3) from air filter housing and remove.

Electronic Switching On Or Control Unit
Fig. 21: Locating Ignition Coil Covers Screws And Holder

Installation:

Electronic Switching On Or Control Unit
Fig. 22: Identifying Plug Connector

Replace screw.

Tightening torque 12 14 4AZ.

Remove pulse generator (2).

Electronic Switching On Or Control Unit
Fig. 23: Locating Pulse Generator

NOTE: Check stored fault messages.

Now clear the fault memory.

REPLACING CONTROL UNIT (DME)

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection).

Necessary preliminary tasks:

IMPORTANT: Follow instructions for removing and installing electronic control units.

Replacement:

IMPORTANT: It is absolutely essential to read out the fault memory with the MoDiC or the BMW DIS and to create a fault memory printout.

Switch off ignition.

Lever out expander rivet.

Remove gasket (1).

Release screws (2).

Feed out partition (3) and remove.

Electronic Switching On Or Control Unit
Fig. 24: Identifying Expander Rivet Gasket And Screws

Lever out expander rivet.

Release locks in direction of arrow.

Feed out fresh air duct (1) and remove.

Electronic Switching On Or Control Unit
Fig. 25: Removing Fresh Air Duct

Open retainers.

Release lock (1) in direction of arrow.

Remove cover (2).

Electronic Switching On Or Control Unit
Fig. 26: Locating Retainers Lock And Cover

Release screws and remove retaining bar (1).

Unlock upper section (2) of partition seal in direction of arrow and remove.

Release grommets (3) for wiring harnesses from lower section of partition seal and from electronics box.

Installation:

Make sure grommets are correctly seated (watertightness).

Electronic Switching On Or Control Unit
Fig. 27: Unlocking Upper Section Of Partition Seal

Unlock plugs (1) using slide in direction of arrow and remove. Remove control unit (2).

Installation:

Replacement: Note device identification number and coding.

Electronic Switching On Or Control Unit
Fig. 28: Identifying DME Control Unit

NOTE: Check stored fault messages. Now clear the fault memory.

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