BMW X5: Injection Nozzle And Lines
REPLACING COMPLETE INJECTION PIPE (N52/ N52K)
Special tools required:
- 13 5 281
Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Switch off ignition
- Remove clean air pipe
- Remove ignition coil cover
Recycling
Fuel escapes when fuel line is detached. Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.
N52K only:
Unclip plug connection (1) from holder (2) and disconnect.
Unclip wiring harnesses from holder (2) and connector strip (3).
Disconnect holder (2) from injection pipe.
Remove protective cap from compressed air valve.
Connect compressed air line (1) to compressed air valve.
Blow fuel back into tank with a short blast of compressed air (max. 3 bar).
Unlock and detach fuel line (1).
Detach connector strip (2) in direction of arrow. Release screws.
Remove injection pipe (3).
Seal fuel hose with special tool 13 5 281.
Lever out retainers (1).
Pull fuel injectors out of injection pipe.
Installation:
Replace sealing rings on fuel injectors and coat with anti-friction rubber coating.
NOTE: Check stored fault messages.
Now clear the fault memory.
REPLACING, SEALING FUEL HOSES
Special tools required:
- 13 5 281
WARNING: Fuel in fuel lines is under pressure (approx. 3-5 bar).
Recycling
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.
Version with compressed-air connection:
Blow fuel back into tank with a short blast of compressed air (max. 3 bar) at compressed air connection (1).
For version with fuel hoses with integrated unlocking device:
Press fuel hose (1) downwards and keep pressed.
Press unlocking ring (2) upwards, keep pressed and detach fuel hose (1).
Installation:
Check O-ring in fuel hose and sealing surfaces on fuel lines for damage; replace components if necessary.
Coat O-ring for assembly with anti-friction agent.
Remove fuel line.
Fuel hoses with quick-release couplings:
Seal fuel hoses (1&2) with special tool 13 5 281.
Installation:
Check O-ring in fuel hose and sealing surfaces on fuel lines for damage; replace components if necessary.
Coat O-ring for assembly with anti-friction agent.
REMOVING AND INSTALLING/REPLACING A FUEL INJECTOR (N52, N52K, N51)
This work step is described in the article Removing complete injection pipe.
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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:
Sensor For Control Unit
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
Intake Silencer
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
SEE MORE:
Turbocharger Diagnosis
There are three "Golden Rules" to adhere to when diagnosing concerns on the
N54 engine:
1. When diagnosing cases of smoke from the exhaust, it is important to avoid
unnecessary replacement of
the turbochargers. Smoke can be caused by oil consumption such as the crankcase
ventilation system.
Alwa
Replacing Shaft Seal For Drive Flange On Rear Differential (Inserted
Propeller Shaft)
Special tools required:
00 5 010
33 5 050
33 5 060
33 5 070
33 5 080
IMPORTANT: Use only approved gear oils.
Failure to comply with this instruction will result in serious damage to the
rear
differential!
Necessary preliminary tasks:
Remove propeller shaft.
Remove retaining clip (1) and
