Volkswagen Amarok 2011, Workshop Manual

Page: 172 / 259

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– After pressure has built up, cut-off tap -B- of pressure tester
immediately. Lever is then at right angle to direction of flow.
If the pressure does not drop now:
Note
Leak must be sought on engine side. Repeat holding pressure
test. This time, close shut-off tap -A- to check whether leak ac‐
tually is on engine side.
– Check fuel pipe to high-pressure pump for leaks.
If no fault is found:
– Renew high-pressure pump
⇒ page 226 .
If the pressure drops again:
Leak must be sought on fuel tank side; proceed as follows:
– Check fuel line leading to flange for leaks.
If no fault is found:
– Open fuel delivery unit flange -1-
⇒ page 172 .
– Check that all hose connections are connected.
If no fault is found:
– Renew fuel delivery unit.
2.1.4 Checking fuel delivery rate
– Checking fuel delivery rate ⇒ Vehicle diagnostic tester.
Amarok 2011 ➤
4-cylinder injection engine (2.0 l direct injection engine, turbocharger) - Edition 02.2011
166
Rep. gr.20 - Fuel supply system