BMW 7 Series: 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 released!
Recycling:
Catch and dispose of escaping fuel with auxiliary materials.
Observe country-specific waste disposal regulations.
Check fuel delivery pressure:
To check the fuel delivery pressure, special tool 13 0 290 must be assembled as follows.
Screw adapter 11 4 310 onto line 13 0 291 (line). Screw the IMIB 100 bar pressure sensor (1) onto adapter 11 4 310.
Alternatively, the pressure gauge from the set of special tools 13 3 060 can be screwed onto line 13 0 291 (line).
Between lines 13 0 291 (line) and 13 0 292 (line), mount a shutoff tap (2) and a T-piece (3) from the set of special tools 13 3 060.
Close up T-piece (3) from the set of special tools with the cap 13 0 293 (fastener).
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Fig. 3: Checking Fuel Delivery Pressure Using Pressure Sensor, Special Tools
And Adapters
NOTE: The graphic shows F07.
The procedure is identical for other vehicles.
Remove circlip (1).
Unlock and detach fuel line (2) to fuel tank from fuel line (2) to high pressure pump.
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Fig. 4: Identifying Circlip, Fuel Line And Fuel Tank
Install special tool (1) 13 0 290 into detached fuel line with IMIB fuel pressure sensor (100 bar).
Connect IMIB with fuel pressure sensor.
Establish fuel delivery pressure. Read off fuel delivery pressure on IMIB and compare with values in diagnosis system.
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Fig. 5: Installing Special Tool (13 0 290) With Fuel Pressure Sensor To Fuel
Line
Check fuel holding pressure:
To check the fuel holding pressure, special tool 13 0 290 must be assembled as follows.
Screw adapter 11 4 310 onto line 13 0 291 (line). Screw the IMIB 100 bar pressure sensor (1) onto adapter 11 4 310.
Alternatively, the pressure gauge from the set of special tools 13 3 060 can be screwed onto line 13 0 291.
Between lines 13 0 291 (line) and 13 0 292 (line), mount a shutoff tap (2) and a T-piece (3) from the set of special tools 13 3 060.
Mount pressure gauge (4) from special tool set 13 3 060 onto T-piece (3) from special tool set 13 3 060.
.png)
Fig. 6: Checking Fuel Delivery Pressure Using Pressure Sensor, Special Tools
And Adapters
NOTE: The graphic shows F07.
The procedure is identical for other vehicles.
Remove circlip (1).
Unlock and detach fuel line (2) to fuel tank from fuel line (2) to high pressure pump.
.png)
Fig. 7: Identifying Circlip, Fuel Line And Fuel Tank
Install special tool (1) 13 0 290 with pressure gauge (2) and IMIB 100 bar fuel pressure sensor (3) into the detached fuel line.
Establish fuel delivery pressure.
Close shutoff tap (4) and switch off the engine.
Read off fuel holding pressure of high pressure pump from IMIB tester and compare with values in diagnosis system.
Read off fuel holding pressure to fuel tank on pressure gauge (2) and compare with values in diagnosis system.
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Fig. 8: Installing Special Tool (13 0 290) With Pressure Gauge And Fuel
Pressure Sensor To Fuel Line
Assemble engine.
Check fuel system for leak tightness.
READ NEXT:
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:
Storage compartments
Vehicle features and
options
This chapter describes all standard, country-specific
and optional features offered with the series.
It also describes features and functions that are
not necessarily available in your vehicle, e.g., due
to the selected options or country versions. This
also applies to
Introduction
Anti-theft System
The anti-theft system is available as an option. The task of the anti-theft
system is to indicate unauthorized
access to the vehicle by emitting an alarm. The alarm can be triggered both
audibly and visually. To do this,
however, the anti-theft system must be activated. When acti
