Fuel Injectors - Audi A6 Repair Manual

– To fasten high-pressure line (14 mm) at high pressure pump
use torque wrench -V.A.G 1331- with ratchet -V.A.G 1331/1-
and socket 14 mm -3150- .
– To fasten high-pressure line (17 mm) to high pressure pump,
use torque wrench -V.A.G 1331- with reversible ratchet -V.A.G
1331/1- and socket -T40055- .
Tightening Specifications
Component
Intake manifold lower-part to cylinder head
High pressure lines to
5.4

Fuel Injectors

Special tools and workshop equipment required
♦ 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 in‐
stallation
6 - Support ring - fuel rail wields force via support ring to hold
fuel injector tightly in cylinder head
Removing
WARNING
♦ Fuel system is under high pressure! 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.
– Remove upper part of intake manifold
– Remove corresponding intake manifold lower-part
⇒ page 32 .
High pressure pump
Fuel rail
⇒ page 2
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with respect to the correctness of information in this document. Copyright by AUDI AG.
⇒ page 29
Fuel Injection and Ignition - Edition 03.2008
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Audi A6 2005 ➤
5. Removal and Installation
35