volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Pressure Release > < With Manufacturer's Scan Tool|Page 5289
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If pressure does drop again:

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Open stop valve of pressure gauge V.A.G 1318 (lever in direction of flow -arrow-).

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Start engine and let run at idle.

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Wait until pressure has dropped, and then switch off ignition. Simultaneously pinch return hose -3- tightly together.

If pressure does not drop:

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Replace fuel pressure regulator, item 5 .

If pressure does drop again:

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Check whether line connections, O-rings in fuel rail, and fuel injectors are properly sealed.

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Check whether pressure gauge is properly sealed.

NOTE:  Before removing pressure gauge, put cleaning rags back around line connection which is to be disconnected.

Fuel Pressure Release > < With Manufacturer's Scan Tool|Page 5289