volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Pressure Regulator and Residual Pressure|Page 2400 > < Fuel Pressure Regulator and Residual Pressure|Page 2398
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Remove fuse no. 28 (fuel pump) from fuse holder.

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Disconnect supply line -3- (black with white marking) and catch escaping fuel using a rag.

NOTE:  Press in securing ring to disengage the fuel lines.

WARNING:
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The fuel or fuel lines in fuel system can become very hot (danger of scalding).

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In addition, the fuel system is under pressure. before opening the system, place rags around the connection area and release pressure
by carefully loosening the connection.

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Wear protective goggles and protective gloves when working on the fuel system.

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Connect pressure gauge (V.A.G1318 using adapters V.A.G1318/9 and 1318/17) to supply line and hose for fuel distributor.

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Open shut-off valve of pressure gauge. The lever points in the direction of flow (arrow).

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Re-insert fuse 28 (fuel pump) into fuse holder.

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Start engine and let run at idle.

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Measure fuel pressure.

Specified value: approx. 2.5 bar positive pressure

Fuel Pressure Regulator and Residual Pressure|Page 2400 > < Fuel Pressure Regulator and Residual Pressure|Page 2398