BMW 7 Series: Removing And Installing/Replacing Left Rail (N63)
WARNING: Electric fuel pump starts up automatically when door is opened!
Observe warning on cylinder head cover.
Disconnect NEGATIVE BATTERY TERMINAL (risk of fire due to short circuit on removal).
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 speed when the high pressure line is released!
IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced dirt contamination 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 contamination before removing lines or separate components.
- Use only fluff-free cloths.
- Seal all fuel system openings with protective caps or plugs.
Recycling
Fuel escapes when fuel line is detached. Catch and dispose of escaping fuel.
Observe country-specific waste disposal regulations.
Necessary preliminary work
- Read out the fault memory of the DME control unit. If necessary, work through test schedules.
- Switch off ignition.
- Remove left INTERCOOLER.
- Remove COOLANT EXPANSION TANK.
- Remove WATER VALVE and set the coolant hoses onto the side.
- Partially remove WIRING HARNESS for engine.
- Partially remove WIRING HARNESS for injectors and ignition coils.
- Disconnect all PRESSURE LINES on left side.
- If installed:
Remove OIL RESERVOIR for hydraulic steering or dynamic drive. - If installed:
Remove suction line for hydraulic steering or dynamic drive.
Unlock plug (1) on high-pressure sensor and disconnect.
Unfasten screws (2).
Tightening torque 13 53 1AZ.
Remove rail (3).
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Fig. 85: Identifying High Pressure Sensor With Plug And Mounting Screws
NOTE: Assemble engine Check fuel system for leak tightness.
Delete fault memory.
REMOVING AND INSTALLING/REPLACING RIGHT RAIL (N63)
WARNING: Electric fuel pump starts up automatically when door is opened! Observe warning on cylinder head cover.
Disconnect NEGATIVE BATTERY TERMINAL (risk of fire due to short circuit on removal).
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 speed when the high pressure line is released!
IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced dirt contamination 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 contamination before removing lines or separate components.
- Use only fluff-free cloths.
- Seal all fuel system openings with protective caps or plugs.
Recycling
Fuel escapes when fuel line is detached. Catch and dispose of escaping fuel.
Observe country-specific waste disposal regulations.
Necessary preliminary work
- Read out the fault memory of the DME control unit. If necessary, work through test schedules.
- Switch off ignition.
- Remove right INTERCOOLER.
- Remove ELECTRONICS BOX.
- Partially remove WIRING HARNESS for engine.
- Partially remove WIRING HARNESS for injectors and ignition coils.
- Disconnect all PRESSURE LINES on right.
Unlock plugs from high-pressure fuel sensor with a long screwdriver.
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Fig. 86: Unlocking High-Pressure Fuel Sensor Plugs Using Long Screwdriver
Disconnect plug (1) from high-pressure sensor.
Unfasten screws (2).
Tightening torque 13 53 1AZ.
Remove rail (3).
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Fig. 87: Identifying Fuel Rail With High-Pressure Sensor Plug And Mounting
Screws
NOTE: Assemble engine Check fuel system for leak tightness.
Delete fault memory.
READ NEXT:
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 s
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
SEE MORE:
Removing And Installing/Replacing Top Left Wishbone
Notes
NOTE: Wishbones with + or - marking (see graphic) are camber correction
arms:
- Underdimension variant
+ Overdimension variant
These camber correction arms are used to correct the camber values by 30
minutes. To be used only if the tolerance values are exceeded or undershot!
An unmarked contr
Replacing Rubber Mount In Left Or Right Trailing Link
Notes
IMPORTANT: Rubber mount may only be renewed once!
Necessary preliminary tasks
Check ball joints of tension links while installed, replace TRAILING
LINK if necessary
Remove TRAILING LINK
IMPORTANT: If the trailing link already features an identification mark
with a center punch, it
is ne
