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:
- Read out fault memory of DME control unit
- Switch off ignition
NOTE: Installation location of pulse generator for crankshaft is underneath starter motor.
Preparatory tasks:
- Remove intake air manifold.
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.
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:
- Read out fault memory of DME control unit.
- Switch off ignition
- Remove If necessary, remove radiator cover
Unlock plug (1) and remove.
Release bolt.
Installation:
Replace screw.
Tightening torque 12 14 3AZ.
Remove pulse generator (2).
Fig. 14: Locating Pulse Generator Plug
NOTE: Check stored fault messages.
Now clear the fault memory.
READ NEXT:
Replacing Pulse Generator On Inlet Camshaft (N52K)
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
Replacing Control Unit (DME)
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
Necessary preliminary tasks:
Switch off ignition
Disconnect battery negative lead.
Remove microf
Alternator With Drive
REPLACING ALTERNATOR BELT PULLEY
Special tools required:
12 7 110.
Remove and install alternator drive belt.
Depending on alternator type, grip shaft with:
hexagon socket
multi-tooth socket or
SEE MORE:
Intake Manifold
REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N62)
Remove acoustic cover. To remove, unfasten screws. Raise acoustic cover and
remove towards front.
Remove design cover, if equipped.
Remove center of bulkhead.
Remove intake hose.
Remove injection pipe.
On rear side of manifold, unlock and disco
Microfilter
REPLACING MICROFILTER FOR INTERIOR VENTILATION
Necessary preliminary tasks:
Remove microfilter housing.
Unclip catches (1) and remove microfilter (2).
Installation:
Reset Condition Based Service display according to factory specification.
Fig. 69: Identifying Catches And Microfilter
REPLACING R
