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CC 2012 ➤ , Passat 2011 ➤ , Passat Variant 2011 ➤
Fuel supply system, petrol engines - Edition 05.2019
– Connect adapter hose - KLI 9210/55-1- to breather line -A-
(colour code: white).
– Connect test hose -G- of fuel system tester - KLI 9210- to
adapter hose - KLI 9210/55-1- .
– Set valve -D- to "Hold".
– Connect vehicle diagnostic tester to vehicle.
– Start engine and run it at idling speed.
– On vehicle diagnostic tester , select operating mode
.
functions
– Select guided function "Check tank ventilation system for
leaks".
– Activate test.
– Observe pressure gauge - KLI 9210- while test is running.
•
Fuel system diagnostic pump - V144- must pump up pressure
in fuel system to at least 7 in. H2O (18 mbar).
The minimum pressure was not reached, but the available pres‐
sure does not drop.
– Switch ignition off and perform pressure retention test
⇒ page 61
. If no pressure drop can be detected: check vac‐
uum supply for fuel system diagnostic pump - V144-
⇒ "5.3.4 Checking vacuum supply of fuel system diagnostic
pump V144 ", page 64
If minimum pressure is not reached and attained pressure imme‐
diately drops:
60
Rep. gr.20 - Fuel supply system
.
Guided
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