BMW 7 Series: Replacing Low-Pressure Fuel Sensor (N63)
WARNING: Disconnect BATTERY NEGATIVE TERMINAL (risk of fire due to short-circuiting on removal).
Electric fuel pump starts up automatically when door is opened! Carry out installation work on fuel system only with coolant temperature below 40ºC.
Wear protective goggles.
IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced contaminants can cause malfunctions in the system!
- Do not allow any dirt particles or foreign bodies to get into the system.
- Remove all traces of dirt before removing pipes or individual components.
- Use only fluff-free cloths.
- Seal all fuel system openings with protective caps or plugs.
IMPORTANT: Ignition coils must not be fouled by fuel.
The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail! Cover ignition coil with suitable means.
Necessary preliminary tasks
- Remove left intake duct.
Recycling
Catch and dispose of escaping fuel in a suitable container.
Observe country-specific waste-disposal regulations.
Unlock plug (1) and remove.
Release low-pressure fuel sensor (2).
Tightening torque 13 53 9AZ.
Installation:
Replace sealing ring on low-pressure fuel sensor.
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Fig. 88: Identifying Low Pressure Fuel Sensor With Plugs
Assemble engine.
Check fuel system for leaks.
Check function of DME.
REPLACING LEFT HIGH-PRESSURE FUEL SENSOR (N63)
WARNING: Observe warning on cylinder head cover.
Disconnect BATTERY NEGATIVE TERMINAL (risk of fire due to shortcircuiting on removal).
Electric fuel pump starts up automatically when door is opened! Carry out installation work on fuel system only with coolant temperature below 40ºC.
IMPORTANT: Wear full face guard and protective gloves.
Fuel can emerge spontaneously at high velocity when the high-pressure line is released!
IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced contaminants can cause malfunctions in the system!
- Do not allow any dirt particles or foreign bodies to get into the system.
- Remove all traces of dirt before removing pipes or individual components.
- Use only fluff-free cloths.
- Seal all fuel system openings with protective caps or plugs.
Necessary preliminary tasks
- Remove left RAIL
Recycling
Catch and dispose of escaping fuel in a suitable container.
Observe country-specific waste-disposal regulations.
Release high-pressure sensor (1) and remove.
Tightening torque 13 53 8AZ.
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Fig. 89: Identifying High-Pressure Sensor
Assemble engine.
Check fuel system for leaks.
Check function of DME.
REPLACING RIGHT HIGH-PRESSURE FUEL SENSOR (N63)
WARNING: Observe warning on cylinder head cover.
Disconnect BATTERY NEGATIVE TERMINAL (risk of fire due to shortcircuiting on removal).
Electric fuel pump starts up automatically when door is opened! Carry out installation work on fuel system only with coolant temperature below 40ºC.
IMPORTANT: Wear full face guard and protective gloves.
Fuel can emerge spontaneously at high velocity when the high-pressure line is released!
IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced contaminants can cause malfunctions in the system!
- Do not allow any dirt particles or foreign bodies to get into the system.
- Remove all traces of dirt before removing pipes or individual components.
- Use only fluff-free cloths.
- Seal all fuel system openings with protective caps or plugs.
Necessary preliminary tasks
- Remove right FUEL RAIL.
Recycling
Catch and dispose of escaping fuel in a suitable container.
Observe country-specific waste-disposal regulations.
Release high-pressure sensor (1) and remove.
Tightening torque 13 53 8AZ.
.png)
Fig. 90: Identifying High-Pressure Sensor
Assemble engine.
Check fuel system for leaks.
Check function of DME.
READ NEXT:
Throttle And Operation
REMOVING AND INSTALLING/SEALING LEFT THROTTLE VALVE ASSEMBLY (N63)
Necessary preliminary tasks
Switch off ignition.
Remove left INTERCOOLER.
Unlock plug (1) and remove.
Unfasten screws (2).
Tigh
Sensor For Control Unit
REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT AIR-MASS FLOW
SENSOR (N63)
Necessary preliminary tasks
Read out fault memory of DME control unit
Switch off ignition
Remove ACOUSTIC COVER
Picture
Start Valves
Removing And Installing/Replacing An Injector (N63)
Notes
WARNING: Observe warning on cylinder head cover.
Clamp off battery negative terminal (risk of fire due to short-circuiting on
removal).
Elec
SEE MORE:
Replacing Rear Left Or Right Spring Strut Shock Absorber
WARNING: Prior to each use of special tool 31 3 340, it is essential to
read the
associated Owner's Handbook fully!
All the safety information and instructions contained in the Owner's
Handbook must be strictly observed!
Failure to observe these safety precautions and instructions increases
the ris
Removing And Installing/Replacing All Pistons (N63) From 3/2011
Notes
WARNING: Protective goggles must be worn when working on the gudgeon
pin
circlip.
IMPORTANT: If pistons and connecting rods are reused, they must be
reinstalled in the same
places.
Piston and piston pin are matched to each other and can only be replaced as a
pair.
Conrod and conrod bearing
