BMW 7 Series (F01/F02) 2008-2015 Service Manual / Fuel Supply System / Fuel Pump With Drive And Line
BMW 7 Series: Fuel Pump With Drive And Line
- Check Fuel Pressure
- Checking Fuel Delivery Pressure (N20, N53, N54, N55, N63, N74)
- Notes Regarding The Fuel Pressure Test (Reference Pressure: Surrounding Area)
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Check Fuel Pressure
Necessary preliminary work:
Connect BMW diagnosis system.
IMPORTANT: Lines are under pressure!
Wear protective goggles and gloves.
Fuel can emerge spontaneously at high velocity when the fuel line is
Checking Fuel Delivery Pressure (N20, N53, N54, N55, N63, N74)
Necessary preliminary work:
Connect BMW diagnosis system.
IMPORTANT: Lines are under pressure!
Wear protective goggles and gloves.
Fuel can emerge spontaneously at high velocity when the fuel line is
Notes Regarding The Fuel Pressure Test (Reference Pressure:
Surrounding Area)
The characteristic of this version with ambient pressure:
The connection for the vacuum hose of the fuel pressure regulator is located
between the throttle and the air
cleaner or on the air cleaner.
SEE MORE:
Replacing Actuator Drive For Fresh Air/Ram Air
Necessary preliminary work
REMOVE AUXILIARY ELECTRONICS BOX
Unlock plug connection (1) on AUC sensor and disconnect.
Fig. 46: Identifying Plug Connection On AUC Sensor
Release screws (1) on blower housing cover (2).
Lift out blower housing cover.
Fig. 47: Identifying Blower Housing Cover Screw
Conducting Leak Test On Fuel Tank And Tank Venting System
IMPORTANT: On vehicles with tank leak diagnosis modules (DMTL), do not
work with
external pressurization as the tank ventilation system will leak under this
condition.
On account of emerging fuel vapors, carry out all work in well ventilated rooms.
Or use a suitable extractor system.
Observe cou
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