Audi Q7 2007 Repair Manual page 7

WARNING
There is a risk of injury because the fuel is under pressure.
♦ Place clean rags around the connection before opening
the system. Then release pressure by carefully loosening
the connection.
♦ Wear safety gloves.
♦ Wear protective eyewear.
Very hot fuel can cause burns.
♦ The temperature of the fuel lines may reach 100 °C (212
°F) after stopping the engine. Let the fuel cool down before
opening any line connections otherwise there is a danger
of scalding.
♦ Wear safety gloves.
♦ Wear protective eyewear.
WARNING
Danger due to leaking fuel.
♦ Because the Transfer Fuel Pump - G6- runs briefly when
the battery is connected and the driver's door is opened,
the voltage supply to the Transfer Fuel Pump - G6- must
be disconnected before opening the fuel system.
Caution
Risk of destroying electronic components when disconnecting
the battery.
♦ Make sure to complete the steps for disconnecting the
battery. Refer to ⇒ Electrical Equipment; Rep. Gr. 27 ;
Battery; Battery, Disconnecting and Connecting .
– Procedures before opening high pressure fuel injection sys‐
tem. Refer to
⇒ "1.6 Pressure, Reducing in High Pressure Area",
page 5 .
To prevent personal injury and damage to the injection and igni‐
tion system, observe the following:
♦ Individuals with a pacemaker must not stay in the danger area
of high voltage systems, for example ignition systems, xenon
light.
♦ Fuel lines must not be opened when engine is running.
♦ The ignition must be switched off before connecting or dis‐
connecting injection and ignition system wiring or tester ca‐
bles.
♦ Wash the engine only when the ignition is turned off.
– Disconnect the battery. Refer to ⇒ Electrical Equipment; Rep.
Gr. 27 ; Battery; Battery, Disconnecting and Connecting .
Fuel Injection and Ignition - Edition 02.2015
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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.
Audi Q7 2007 ➤
1. Safety Precautions and Clean Working Conditions
3