Touareg 2003 ➤
8-cylinder injection engine - Edition 11.2011
1.5
Safety precautions
lk
♦ For safety reasons, fuse nos. -13- and -14- -arrows- must be
removed from the fuse holder before opening the fuel system.
Otherwise, the fuel pump could be activated by the driver's
door contact switch.
♦ Fuse nos. 13 and 14 are located in the E-box fuse holder in
the left plenum chamber.
WARNING
Fuel supply lines are under pressure! Wear eye protection and
gloves to avoid injuries and skin contact. Before loosening
hose connections, wrap a cloth around the connection. Then
release pressure by carefully pulling hose off connection.
To prevent injuries to persons and/or damage to the injection and
ignition system, the following must be observed:
♦ Do not touch or disconnect ignition cables when the engine is
running or being turned at starter speed.
♦ Switch off ignition before connecting or disconnecting injection
and ignition system wiring as well as test instrument cables.
Note the following if testers and measuring instruments have to
be used during a road test:
♦ Test and measuring instruments must always be secured to
rear seat and operated by a second person from this location.
If test and measuring instruments are operated from front pas‐
senger seat and the vehicle is involved in an accident, there is a
possibility that the person sitting in this seat may receive serious
injuries when the airbag is triggered.
♦ If the engine is to be turned at starter speed without starting:
– Pull connectors off ignition coils with output stage (cylinders
1…8).
1.6
Rules for cleanliness
When working on the fuel supply and injection system, pay careful
attention to the following „5 rules“ for cleanliness:
♦ Thoroughly clean all unions and surrounding areas before dis‐
connecting.
♦ Place removed parts on a clean surface and cover. Use only
lint-free cloths.
♦ Carefully cover opened components or seal if repairs cannot
be carried out immediately.
♦ Install clean components only. Do not remove replacement
parts from packing until immediately before installing. Do not
use parts that have not been stored in their packing (e.g. in
tool boxes etc.).
♦ When system is open: do not work with compressed air if this
can be avoided. Do not move vehicle unless absolutely nec‐
essary.
1.7
Technical data
Engine codes
AXQ
BHX
Idling check
Idling speed3)
rpm
670...730
670...730
1. Repairing injection system
137
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