Volkswagen Touareg 2003 Workshop Repair Manual page 120

Touareg 2003 ➤
8-cylinder injection engine - Edition 11.2011
– Close pressure gauge shut-off tap -arrow- (lever at right an‐
gles to direction of flow).
– Connect pressure tester -V.A.G 1318- with adapter -
V.A.G 1318/7- , adapter -V.A.G 1318/13- and adapter -
V.A.G 1318/24- as shown.
Note
Ensure that fuel supply line connection engages audibly when
joined.
– Connect remote control -V.A.G 1348/3 A- with adapter -
V.A.G 1348/3-3- to connection -arrow- of fuel pump relay for
left fuel delivery unit.
– Operate remote control at short intervals until a pressure of
approx. 4 bar has built up.
– Watch pressure drop on pressure gauge. After 10 minutes,
pressure must not drop below 3.0 bar.
If pressure drops:
– Left fuel pump is defective. Renew left fuel delivery unit
⇒ page 102 .
– Open lever of pressure tester and let fuel flow back to fuel tank
through hose -V.A.G 1318/13- .
– Remove pressure tester -V.A.G 1318- with adapters.
114
Rep. gr.20 - Fuel supply system