New Beetle L4-2.0L (AVH) (2005)
-
Pull off fuel supply line on connection -1 - and collect leaking fuel with a cloth.
NOTE: To do this slide securing ring -2-in connection -1 -.
-
Connect pressure gauge V.A.G1318 to fuel supply line and to fuel rail with adapters V.A.G 1318/9 and V.A.G 1318/17.
-
Open shut-off tap on pressure gauge. Lever points in through-flow direction (position - A -).
-
Refit fuse 28 (fuel pump) in fuse holder.
-
Start engine and run at idling speed.
-
Measure fuel pressure.
-
Specification: approx. 4 bar
If the specification is not obtained:
-
Switch off ignition.
-
Check that fuel pump can create and maintain this pressure, Checking fuel pump non-return valve.
-
Check fuel pressure regulator.
If the specification is obtained:
-
Switch off ignition.
-
Check for leaks and holding pressure (entire system) by observing pressure drop on gauge.
-
After 10 minutes, there must be a residual pressure of at least 2.0 bar.
If the holding pressure drops below 2 bar:
-
Start engine and run at idling speed.