Auxiliary Fuel Pump -V393- (IN-LINE ELECTRIC FUEL PUMP)

WARNING: This page is about a different car, the 2014 Volkswagen Jetta, 2013 Volkswagen Jetta, 2012 Volkswagen Jetta, and 2011 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Torque Wrench 1331 5-50Nm VAG 1331
Hose Clip Pliers VAS6362

CAUTION:

Observe the safety precautions when working on the fuel supply system. Refer to SAFETY PRECAUTIONS .
Observe the rules for cleanliness. Refer to CLEAN WORKING CONDITIONS .

Always follow these instructions before and during work.

Removing

-- Disconnect the connector -2- from the Differential Pressure Sensor -G505- -1-.

Fig 1: Identifying Exhaust Pressure Sensor -1-, Connector -2-, Bolt -4- And Bracket -3-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bolt -4- and bracket -3- with the Differential Pressure Sensor -G505- -1- in the direction of the -arrow- and lay them aside (the control wires remain connected).

-- Disconnect the connector -1- from the Auxiliary Fuel Pump -V393-.

Fig 2: Identifying Connector -1- To Auxiliary Fuel Pump And Fuel Hoses -2 / 3-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Unclip the fuel hoses -2 and 3- from the bracket.

-- Loosen the hose clamp using Hose Clip Pliers VAS6362 and remove the fuel supply line, refer to -item 6- in the FUEL FILTER OVERVIEW , from the fuel filter.

-- Disconnect the connector from the Fuel Temperature Sensor -G81- -arrow-.

Fig 3: Identifying Fuel Temperature Sensor -G81-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Loosen the spring clamp -1- using Hose Clip Pliers VAS6362 and remove the fuel supply line from the high pressure fuel pump.

-- Seal the lines so that the fuel system is not contaminated by dirt or contaminants.

-- Remove the bolts -arrows- and the Auxiliary Fuel Pump -V393-.

Fig 4: Identifying Bolts To Auxiliary Fuel Pump

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Installing

Install in the reverse order of removal. Note the following:

Route the fuel hoses free of kinks.
Ensure fuel hoses are seated securely.
Do not interchange the supply and return lines (the return line is blue or has a blue mark, the supply line is black or has a black mark).
Clip the fuel and coolant hoses back into the retainers.

Tightening Specifications

The Differential Pressure Sensor -G505- bracket bolt: 8 Nm.
The Auxiliary Fuel Pump -V393- bolts: 20 Nm.

-- Fill and bleed the fuel system. Refer to FUEL SYSTEM, FILLING AND BLEEDING .