BMW 7 Series: Connection Diagram, Vacuum Activation (N63)
.png)
Fig. 462: Connection Diagram, Vacuum Activation (N63)
- Connection (1) Black to exhaust flaps.
- Distribute element (2), vacuum pump/vacuum reservoir (4).
- Vacuum line (3) black to vacuum pump.
- Vacuum reservoir (4) with three connections.
- Connection, vacuum unit (wastegate), bank 2, cylinders 5 to 8.
- Connection, vacuum unit (wastegate), bank 1, cylinders 1 to 4.
- Vacuum hose (7) black/blue to vacuum unit (5) connection to pressure converter (OUT) bank 2 cylinders 5 to 8.
- Vacuum hose black to vacuum reservoir connection to pressure converter (VAC) bank 2 cylinders 5 to 8.
- Vacuum hose (9) black/red to vacuum unit (6) to pressure convert (OUT) bank 1 cylinder 1 to 4.
- Vacuum hose black to vacuum reservoir connection to pressure converter (VAC) bank 1 cylinders 1 to 4.
REMOVING AND INSTALLING/RENEWING ELECTRIC CHANGEOVER VALVE ON EXHAUST TURBOCHARGER, RIGHT (N63)
Necessary preliminary work
- Remove right TURBOCHARGER.
Release screws (1).
Remove electric changeover valve (2).
Installation note: Replace O-ring.
.png)
Fig. 463: Identifying Electric Changeover Valve And Screws
Assemble engine.
Follow diagnosis instruction.
- Complete vehicle
- Powertrain
- Engine electrical system
- Air supply
- Charging pressure control
REMOVING AND INSTALLING/RENEWING HEAT SHIELD AT BOTTOM (N63)
Necessary preliminary work
- Disconnect the BATTERY CABLE FROM THE NEGATIVE TERMINAL.
- Remove FAN COWL with electric fan.
- Remove the ALTERNATOR (not F04).
- Remove both exhaust turbochargers.
- Remove both exhaust manifolds.
Release screws (1).
Tightening torque 11 65 3AZ.
.png)
Fig. 464: Identifying Screws
Release screws (1).
Tightening torque 11 65 3AZ.
Remove heat shield (2) towards top.
.png)
Fig. 465: Identifying Screws And Heat Shield
Release screws (1).
Tightening torque 11 65 3AZ.
IMPORTANT: Risk of interchange on replacement of the heat shield.
Other shields are installed in the N63H and S63 engines.
.png)
Fig. 466: Identifying Heat Shield Screws
Release front screws on heat shield (1).
Tightening torque 11 65 3AZ.
Remove heat shield (1) towards top.
IMPORTANT: Risk of interchange on replacement of the heat shield.
Other shields are installed in the N63H and S63 engines.
.png)
Fig. 467: Identifying Front Screws On Heat Shield
Assemble engine.
READ NEXT:
Removing And Installing/Renewing Heat Shield At Top (N63)
Necessary preliminary work
Remove both INTAKE FILTER HOUSINGS.
Remove both control sensors.
Release screws (1).
Lift out holder.
Fig. 468: Identifying Holder Screws
Release screw (2).
Tighteni
Removing And Installing/Replacing Electric Changeover Valve On
Exhaust Turbocharger, Left (N63)
Necessary preliminary work
Remove left TURBOCHARGER.
Release screws (1).
Remove electric changeover valve.
Installation note:
Replace O-ring.
Fig. 475: Identifying Electric Changeover Valve Scre
Removing And Installing/Replacing Exhaust Turbocharger, Right,
Cylinders 1-4 (N63)
Notes
IMPORTANT: Risk of fire if oil lines are leaking.
Risk of mixing up vacuum hoses.
Necessary preliminary work
Remove CATALYTIC CONVERTER , cylinders 1-4
Disconnect plug connection (1) on elec
SEE MORE:
Venting And Filling Cooling System With Vacuum Filling Unit
Notes
IMPORTANT: Lifetime coolant filling:
Never reuse used coolant!
When replacing and removing components which rely on the corrosion
protection effect of the coolant, it is essential to change the coolant. The
cooling system must therefore be drained and refilled.
In the case of other removal wo
Functions
Important Control Units in the Interior Lighting System
The interior lighting on the F01/F02 is switched on and off by the footwell
module (FRM).
The roof function center (FZD) is responsible for the interior lighting
components in the passenger
compartment roof.
The paragraphs that follow now d
