Fuel Injection System; General Information; Safety Precautions - Audi A6 Repair Manual

24 –

Fuel injection system

1

General Information

⇒ "1.1 Safety Precautions", page 1
⇒ "1.2 Clean Working Conditions", page 2
⇒ "1.3 High-Pressure Fuel Injection System, Pressure Relief",
page 2
⇒ "1.4 Fuel System Bleeding", page 5
1.1

Safety Precautions

To Reduce the Risk of Personal Injury and/or Damage to the Fuel
Injection and Ignition System, Always Observe the Following
WARNING
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ 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.
♦ The ignition must be switched off before connecting or dis‐
connecting injection and ignition system wiring or tester ca‐
bles.
♦ It is possible that the control module will recognize a malfunc‐
tion and store a DTC during some tests. Therefore, when all
tests and repairs are completed, the DTC memory must be
checked and, if necessary, erased. After DTC memory is
erased, a readiness code must be generated for the engine
control module using operating mode "Guided Fault-Finding".
♦ Clean engine only with ignition switched off.
Caution
♦ The battery must only be disconnected and connected with
the ignition switched off, since the Engine Control Module
(ECM) can otherwise be damaged.
♦ Observe safety precautions when disconnecting the battery
⇒ Electrical Equipment; Rep. Gr. 27 ; Removal and Instal‐
lation .
Fuel Injection and Ignition - Edition 03.2008
⇒ page 2 .
Audi A6 2005 ➤
1. General Information
1