BMW X5: Throttle And Operation
REMOVING AND INSTALLING/SEALING THROTTLE VALVE ASSEMBLY (N52 /
N52K / N51 / N53)
Read and comply with notes on protection against electrostatic damage (ESD
protection).
Necessary preliminary tasks:
- Switch off ignition
- Remove air intake hose.
Unlock plug (1) and remove.
Release screws.
Remove throttle assembly (2).

Fig. 3: Locating Screws And Throttle Assembly
Installation:
Replace sealing ring (1) of throttle assembly (2).

Fig. 4: Identifying Sealing Ring And Throttle Assembly
Installation:
Check stored fault messages.
Now clear the fault memory.
REPLACING INTAKE HOSE (N52K)
Necessary preliminary tasks:
- Switch off ignition
- Remove intake filter housing
Remove wiring harness (1) from holder and place to one side. Unfasten clip.
Tightening torque 13 71 1AZ.
Detach air-mass flow sensor (2) from throttle valve assembly.
READ NEXT:
REMOVING AND INSTALLING/REPLACING DIFFERENTIAL PRESSURE SENSOR
(N52 / N52K / N51)
Necessary preliminary tasks:
E90 / E91 / E92 / E93 / E87:
Remove lower section of microfilter housing.
E85 / E86 E
REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N52K)
Necessary preliminary tasks:
Switch off ignition
Lever out expansion rivets (1).
Press lock (2) and raise intake duct (3).
Detach int
Fuel Pump With Drive And Line
NOTES ON FUEL PRESSURE CHECK (REFERENCE PRESSURE: ENVIRONMENT)
Feature of this version with ambient pressure:
The connection for the vacuum hose of the fuel pressure regu
SEE MORE:
Special tools required:
31 4 151
31 4 152
31 4 153
IMPORTANT: For reasons of driving dynamics, the rubber mounts may only
be replaced in
pairs (refers to left and right control arms)!
Necessary preliminary tasks:
Check ball joint of both control arms while installed, replace lower
control
The DISplus/GT-1 are helpful in pinpointing the cause of an engine misfire.
Once the short test is completed,
the fault memory of the ECM can be read out to determine which cylinder or
cylinders have set misfire faults.
There may or may not be any faults present. The engine could be running rough