A8L Quattro Sedan V8-4.2L (BVJ) (2007)
Fuel Rail: Locations
Fuel Rail With Fuel Injectors, Assembly Overview
1
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Radial adjustment
-
Replace if damaged
2
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Combustion chamber seal
-
Do not grease ring or treat with any other lubricant
3
-
Fuel injector
4
-
Spacer ring
-
Replace if damaged
5
-
O-ring
-
Replace
-
Moisten with clean engine oil
6
-
Support ring
-
Replace
-
The fuel rail wields force via support ring to hold fuel injector tightly in cylinder head.
7
-
Fuel rail
8
-
High-pressure line
CAUTION:
-
Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure.
-
Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.
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Connectors should not show any signs of damage
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Do not change bent shape
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25 Nm
9
-
High-pressure line
CAUTION:
-
Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure.
-
Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.