A4 Quattro Wagon V6-3.2L (BKH) (2005)
Fuel Injector: Service and Repair
Fuel Injectors, Removing And Installing
Special tools, testers and auxiliary items required
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Tool set T10133
High-pressure fuel injector - component overview
1. Radial adjustment - Replace if damaged
2. Combustion chamber seal (Teflon seal) - replace, the seal must not be greased or be handled with any other lubricant during installation
3. Groove on fuel injector
4. Spacer ring - Replace if damaged
5. O-ring - replace, lightly coat with clean engine oil during installation
6. Support ring - fuel rail wields force via support ring to hold fuel injector tightly in cylinder head
Removing
CAUTION:
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Fuel system is under high pressure. Before opening high pressure components of the fuel injection system, pressure must be relieved to
residual pressure.
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Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.
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Remove upper part of intake manifold.
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Remove corresponding intake manifold lower-part.
If fuel injectors cannot be pulled out of cylinder head by hand, proceed as follows: