BMW X5: Engine Wiring Loom
REPLACING WIRING HARNESS SECTION FOR ENGINE (N62)
Necessary preliminary tasks:
- Read out DME fault memory
- Disconnect battery negative lead
- ENGINE BONNET/HOOD in assembly position
- Remove FRESH AIR DUCT on right and if necessary on left
- Remove center of ASSEMBLY PARTITION WALL
- Remove intake air manifold
- Remove underbody protection at front/rear
- Remove REINFORCEMENT PLATE
- Remove ELECTRIC FAN with fan cowl
- Remove right exhaust manifold
- Remove STARTER MOTOR
- Remove ALTERNATOR
Release screws (2).
Detach electronics box cover (1) from fixture (3) in direction of arrow towards
right.
Installation:
Secure electronics box cover (1) in direction of arrow on left in fixture
(3).
![Engine Wiring Loom](images/books/1905/index.69(8).png)
Fig. 71: Detaching Electronics Box Cover From Fixture
Unfasten following plug connections:
![Engine Wiring Loom](images/books/1905/index.70(8).png)
Fig. 72: Identifying Plug Connections (1 Of 4)
- Air conditioner compressor
- Oil-pressure switch
- VANOS solenoid valves 1-4
- Knock sensor, right and left
- Throttle-valve actuator
- Air-mass sensor
- Tank venting valve
- Plug connection BSD alternator
- VANOS solenoid valves 5-8
- Coolant temperature sensor
- Map thermostat
Unfasten following plug connections:
![Engine Wiring Loom](images/books/1905/index.71(8).png)
Fig. 73: Identifying Plug Connections (2 Of 4)
- Exhaust camshaft sensor
- VVT sensor (5 to 8)
- Inlet camshaft sensor
- Injection wiring harness (5 to 8)
- VVT servodrive (5 to 8)
- Release screws.
- VVT servodrive (1 to 4)
- Injection wiring harness (1 to 4)
- Inlet camshaft sensor
- Exhaust camshaft sensor
- VVT sensor (1 to 4)
- Differential pressure sensor
- DISA gear
Unfasten following plug connections:
![Engine Wiring Loom](images/books/1905/index.72(8).png)
Fig. 74: Identifying Plug Connections (3 Of 4)
- Automatic transmission
- Not used
- Monitor sensor, left and right
- Term. 50 starter motor
- Crankshaft sensor
- Oil level sensor
- Control sensors (oxygen sensors)
Unfasten following plug connections:
![Engine Wiring Loom](images/books/1905/index.73(8).png)
Fig. 75: Identifying Plug Connections (4 Of 4)
- Ground connection
- Ground connection
- DME module 1 and 2
- Remove profile seal (4) in direction of arrow
-
- VVT control unit
- IVM integrated supply module
Installation:
Fit profile seals correctly.
Check for water leaks.
Assemble engine.
NOTE: Check function of DME.
Check electronics box cover and rubber grommets on equipment carrier for
watertightness.
REPLACING WIRING HARNESS SECTION FOR IGNITION COIL (N62, N62TU)
Necessary preliminary tasks:
- Read out fault memory of DME control unit; if necessary, work through
test schedules
- Switch off ignition
- Remove RIGHT FRESH AIR DUCT
Installation:
Make sure seal of wiring harness section for ignition coils is correctly
installed in electronics box.
Unlock stopper (1) in direction of arrow.
Unfasten screws.
Lift out cover (2).
![Engine Wiring Loom](images/books/1905/index.74(8).png)
Fig. 76: Unlocking Stopper
REFERENCE CHART
![Engine Wiring Loom](images/books/1905/index.75(8).png)
![Engine Wiring Loom](images/books/1905/index.76(7).png)
NOTE: Now clear the fault memory.
REMOVING AND INSTALLING/REPLACING WIRING HARNESS SECTION FOR FUEL
INJECTORS ON LEFT OR RIGHT (N62, N62TU)
Necessary preliminary tasks:
- Disconnect battery negative lead
- Remove ACOUSTIC COVER
- Remove ignition coil cover
NOTE: The procedure is identical for both sides.
Unfasten screws.
Unlock plug (1) and remove.
Remove positioning motor for eccentric shaft.
Unlock plugs on fuel injectors and disconnect.
Remove wiring harness.
![Engine Wiring Loom](images/books/1905/index.77(8).png)
Fig. 77: Locating Plug And Screws
READ NEXT:
REMOVING AND INSTALLING/REPLACING OIL PRESSURE SWITCH (N62, N62TU)
Necessary preliminary tasks:
Switch off ignition
E65/E66 only: Remove intake filter housing
E53 only: Remove intake hood with air
REMOVING AND INSTALLING/REPLACING ELECTRONICS BOX
IMPORTANT: Read and comply with notes on PROTECTION AGAINST
ELECTROSTATIC DAMAGE (ESD PROTECTION).
NOTE: Follow instructions for removing and install
SEE MORE:
REMOVING AND INSTALLING OR REPLACING BATTERY POSITIVE LEAD
(BETWEEN STARTER, ALTERNATOR AND BATTERY POSITIVE TERMINAL)
Necessary preliminary tasks:
Read out fault memory of DME control unit; if necessary, work through
test schedules.
Switch off ignition.
Disconnect battery negative lead.
Rem
IMPORTANT: Changes in axle geometry caused by accidents must under no
circumstances
be rectified by camber adjustment!
NOTE: The upper control arm may only be replaced if the camber is
outside the
specified tolerance after toe adjustment.
Adjust toe-in.
Check camber values; if necessary, replace u