High Pressure Line, Installing: Installing

WARNING: This page is about a different car, the 2016 Audi A3 and 2015 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Clean the fuel line and the line connection before installing with detergent and dry it with compressed air.
When using the high pressure line again, pay attention to the cylinder identification.
The high pressure lines can be reused only after the following tests:
Check the sealing cone on each high pressure line for the deformation and cracks.
The holes for the lines must not be deformed, narrowed or damaged.
Do not use corroded lines again.

CAUTION:

Installation of the high pressure lines under stress.

Risk of damaging the high pressure lines.

- Loosen the high pressure reservoir and move it slightly if necessary in order to attach the fuel injection lines without any tension.

- The high pressure lines must not be bent or under stress.

Follow the guidelines for clean working conditions when working on the fuel supply system. Refer to CLEAN WORKING CONDITIONS .

-- Remove any dirt from the sealing cone on the high pressure reservoir.

-- Coat the thread on the union nut with clean engine oil.

-- Tighten the high pressure line union nuts by hand, making sure they are seated without tension.

-- Tighten the high pressure lines on the high pressure reservoir with the :VAG1331 with the :VAG1331/6 or :T40055 .

Fig 1: Fastening High-Pressure Line At High Pressure Pump Using Torque Wrench V.A.G 1331 With Ratchet V.A.G 1331/1 & Socket 17 mm T40055

Courtesy of AUDI OF AMERICA, LLC

-- Attach the balance -1- weight to the high pressure lines.

Fig 2: Position the balance weight

Courtesy of AUDI OF AMERICA, LLC

-- Perform a leak test on the fuel system. Refer to FUEL SYSTEM LEAK TEST .

-- Install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .