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:
WARNING: Scalding hazard!
Work on the cooling system may only be carried out when it has cooled
down.
Follow instructions for working on cooling system!
NOTE: Disconnect coolant hoses on water valve.
Recycling
Coolant emerges when coolant lines are detached. Have a suitable collecting
container re
Engine adaptation values can be broken down into two categories:
Additive Mixture Adaptation - additive adaptation refers to "long term
fuel trim". These adaptation are
made by the ECM (DME) at idle during "closed loop" fuel control. These
values are measured in
milliseconds and are expresse