Checking For Leaks In The Fuel System - Audi Q7 2007 Workshop Manual

更多资料请访问深度汽车论坛 http://shenduauto.com/ 客服QQ：1398556747 电话：18218750259
Carefully clean connection points and the surrounding area
♦
with engine cleaner or brake cleaner and allow to dry thor-
oughly before opening.
Plug open lines and connections with suitable protective
♦
caps immediately.
Place parts that have been removed on a clean surface and
♦
cover them over. Use only lint-free cloths.
Only install clean components; replacement parts should
♦
only be unpacked immediately prior to installation. Do not
use parts that have been previously unpacked and stored
away loose (e.g. in toolboxes, etc.).
When the system is open: Do not work with compressed
♦
air. Do not move the vehicle unless absolutely necessary.
2.2

Checking for leaks in the fuel system

–
Start the engine and let it run at medium speed for a few
minutes.
–
Switch off ignition.
–
Check the entire fuel system for leaks.
–
If leaks are found although the connections have been
tightened to the correct torque, the relevant component
must be renewed.
–
Then carry out a test drive with at least one full-power ac-
celeration.
–
Then check high-pressure part of fuel system again for
leakage.
6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
Audi Q7 2007 !
2 General repair instructions
6
3