Q7 Quattro V6-3.6L (BHK) (2007)
CAUTION:
Burn risk due to escaping fuel.
-
Because the Transfer Fuel Pump (FP) G6 runs briefly when the battery is connected and the drivers door is opened, the voltage
supply to the G6 must be disconnected when the fuel system is open.
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Remove Transfer Fuel Pump (FP) G6 fuse from fuse holder at left in E-box plenum chamber
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Loosening and tightening
12
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High pressure fuel line
CAUTION:
There is a risk of injury because the fuel is under very high pressure.
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Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure.
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Reduce fuel pressure in high pressure area.
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counter hold to loosen and tighten union nut on high pressure pump connecting pieces
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Tighten connecting pieces on high pressure pump before installing
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Do not install when under tension
-
First tighten union nuts by hand
-
22 Nm
13
-
Low pressure fuel line
-
Counter hold to loosen and tighten union nut on high pressure pump connecting pieces
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Tighten connecting pieces on high pressure pump before installing
-
Do not install when under tension
-
First tighten union nuts by hand
-
27 Nm
14
-
O-ring
-
Replace
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Lubricate O-rings with clean engine oil before installing
15
-
O-ring
-
Replace
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Lubricate O-rings with clean engine oil before installing
16
-
Pressure relief valve
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Replace removed valve
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Press in by hand using 8 mm hex wrench
17
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Locking bolt
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22 Nm
18
-
Bolt
-
Replace
-
Tighten fuel rail uniformly, starting from inside and working toward outside
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30 Nm plus an additional 90 degrees (1/4 turn).
19
-
Connecting line
CAUTION:
Burn risk due to escaping fuel.
-
Because the Transfer Fuel Pump (FP) G6 runs briefly when the battery is connected and the drivers door is opened, the voltage
supply to the G6 must be disconnected when the fuel system is open.
-
Reduce fuel pressure in high pressure area.
-
Do not install when under tension
-
First tighten union nuts by hand
-
22 Nm
20
-
Fuel Pressure Sensor G247
CAUTION:
Burn risk due to escaping fuel.
-
Because the Transfer Fuel Pump (FP) G6 runs briefly when the battery is connected and the drivers door is opened, the voltage
supply to the G6 must be disconnected when the fuel system is open.
-
Reduce fuel pressure in high pressure area.
-
Before assembly, coat front sealing point and threads with clean engine oil
-
22 Nm
21
-
Fuel rail
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For cylinders 2, 4 and 6
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Replace before installing fuel injector spring elements - 3 -
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Tighten uniformly, starting from inside and working toward outside