Audi Q7 2007
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6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics 01.2006
2 General repair instructions
3
6
♦
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.
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