VW CGRA, Workshop Manual

Page: 204 / 281

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– Open shut-off taps “A” and “B” of pressure tester - VAS 6550-
and open in flow direction.
– Close shut-off valve “C”.
– Switch on pressure tester - VAS 6550- by pressing
On/Off
button.
– Connect the vehicle diagnostic tester .
– Switch on ignition.
– Press one after the other in the display the buttons for
Vehicle
self-diagnosis
,
Engine electronics
and
Final con-
trol diagnosis
.
– Press right arrow button
►
on display to
Final control di-
agnosis for fuel pump electronics
.
The fuel pump must now run slowly up to maximum speed.
– Read pressure shown by pressure tester - VAS 6550- .
• Specification: 5.0 … 7.0 bar
– Switch off ignition.
If reading matches specification:
– Checking holding pressure
⇒ page 200 .
If specification is not obtained
Note
When the pressure tester - VAS 6550- is to be removed, open the
shut-off tap “C” and release remaining pressure. To do this, hold
the hose of the shut-off tap “C” in a measuring container.
– Remove pressure tester - VAS 6550- and re-connect the fuel
supply line.
– Ensure that hose clip is securely fitted.
– Remove rear bench seat ⇒ General body repairs, interior;
Rep. gr. 72 ; Removing and installing bench seat .
– Fold right-hand carpet section to the side.
– Remove securing nuts -1 to 4- of flange cover.
– Remove flange cover.
Touareg 2010 ➤ , Touareg 2015 ➤
6-cylinder direct-injection engine (3.6 l engine, 4V) - Edition 12.2019
198
Rep. gr.20 - Fuel supply system