High-Pressure Pump - Exploded View - Audi A8 2010 Workshop Manual

Audi A8 2010 ➤
Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve) - Edition 12.2011
Installation is carried out in the reverse order; note the following:
Note
Before removing the pressure tester, release the fuel pressure by
opening the cut-off valve. To do so, hold end of test hose
-arrow- into measuring container.
– Re-attach fuel supply line (make sure that all parts are clean
and that there are no leaks).
Note
Check fuel system for leaks.
2.14

High-pressure pump - exploded view

1 - Fuel pressure sender for
low pressure -G410-
❑ 15 Nm
2 - Not fitted
3 - Bolt
❑ Tightening torque and
sequence ⇒ page 37
4 - High-pressure pump
❑ With fuel metering valve
-N290-
❑ Removing and installing
⇒ page 39
❑ Do not dismantle
5 - Threaded connection
❑ Connections must not
be damaged
❑ 27 Nm
6 - Fuel supply hose
❑ Low-pressure section
7 - High-pressure pipe
WARNING
Risk of injury - fuel sys‐
tem operates under high
pressure.
♦ The fuel pressure in the
high-pressure section of
the injection system must
be reduced to a residual
pressure prior to opening
the system.
❑ Reducing fuel pressure in high-pressure section of injection system
❑ Removing and installing
36
Rep. gr.24 - Mixture preparation - injection
⇒ page 37
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⇒ page 3