Safety Precautions; Safety Precautions When Working On Fuel Supply System; Safety Precautions When Working On Cooling System; Safety Precautions When Working On Vehicles With Start/Stop System - Audi Q7 2007 Repair Manual

6-Cylinder Direct Injection 3.0L 4V TFSI Supercharged Engine - Edition 01.2016
3

Safety Precautions

⇒ "3.1 Safety Precautions when Working on Fuel Supply Sys‐
tem", page 3
⇒ "3.2 Safety Precautions when Working on Cooling System",
page 3
⇒ "3.3 Safety Precautions when Working on Vehicles with Start/
Stop System", page 3
⇒ "3.4 Safety Precautions during Road Test with Testing Equip‐
ment", page 3
⇒ "3.5 Safety Precautions when Working on Exhaust System",
page 4
3.1 Safety Precautions when Working on
Fuel Supply System
There Is a Risk of Injury Due to the Fuel Being under Pressure.
The fuel system is under pressure. Injuries are possible from fuel
spraying out.
Before opening the fuel system:
– Wear protective eyewear.
– Wear safety gloves.
– Reduce the pressure: Place clean cloths around the connec‐
tion point and carefully open the connection point.
Risk of a Fire Due to Leaking Fuel.
When the battery is connected, the door contact switch activates
the fuel pump when opening the driver door. Leaking fuel can
ignite and start a fire.
– Before opening the fuel system, interrupt the power supply to
the fuel pump.
3.2 Safety Precautions when Working on
Cooling System
Risk of Scalding Due to Hot Coolant
The cooling system is under pressure when the engine is warm.
Risk of scalding due to hot steam and hot coolant.
– Wear safety gloves.
– Wear protective eyewear.
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
– Reduce the pressure by covering the coolant expansion tank
with respect to the correctness of information in this document. Copyright by AUDI AG.
cap with a cloth and carefully opening it.
3.3 Safety Precautions when Working on
Vehicles with Start/Stop System
There Is a Risk of Injury Due to the Engine Starting Unexpectedly.
The engine can start unexpectedly on vehicles with an activated
Start/Stop System. A message in the instrument cluster indicates
whether the Start/Stop System is activated.
– Deactivate the Start/Stop System: switch off the ignition.
3.4 Safety Precautions during Road Test
with Testing Equipment
Audi Q7 2007 ➤
3. Safety Precautions
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