BMW X5 Owners & Service Manuals

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

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

IMPORTANT: Aluminum-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminum screws/bolts exclusively.

Aluminum screws/bolts must be replaced each time they arereleased.

The end faces of aluminum screws/bolts are painted blue for the purposes of reliable identification.

Jointing torque and angle of rotation must be observed without fail (risk of damage).

Necessary preliminary tasks:

NOTE: Installation location of pulse generator for crankshaft is underneath starter motor.

Preparatory tasks:

Detach plug (1) from crankshaft pulse generator (2).

Release screw.

Installation

Replace aluminum screws.

Tightening torque 12 14 2AZ.

Withdraw pulse generator (2) from crankcase.

Installation:

Replace sealing ring.

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

Electronic Switching On Or Control Unit
Fig. 13: Locating Pulse Generator Plug

REPLACING INLET 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..

Installation:

Replace screw.

Tightening torque 12 14 3AZ. Remove pulse generator (2).

Electronic Switching On Or Control Unit
Fig. 14: Locating Pulse Generator Plug

NOTE: Check stored fault messages.

Now clear the fault memory.

REPLACING PULSE GENERATOR ON INLET 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. 15: Locating Ignition Coil Covers Screws And Holder

Unclip Bowden cable for engine bonnet/hood actuator from transverse reinforcement (1).

Release screws on left and right sides. Tightening torque 51 71 4AZ.

Remove cross-brace (1).

Electronic Switching On Or Control Unit
Fig. 16: Identifying Plug Connector

Installation:

Replace screw.

Tightening torque 12 14 3AZ.

Remove pulse generator (2).

Electronic Switching On Or Control Unit
Fig. 17: Locating Pulse Generator And Screw

NOTE: Check stored fault messages.

Now clear the fault memory.

READ NEXT:

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IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection). Necessary preliminary tasks: Read out fault memory of DME control unit; if necessary, work through

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