Lower Intake Manifold With Fuel Rail: Installing

WARNING: This page is about a different car, the 2009 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Installation is performed in reverse order of removal, noting the following:

NOTE:

If a fuel injector was removed form the cylinder head, then the Teflon seal must be replaced.

Replace seals and O-rings.

Lubricate the fuel injector O-rings lightly with clean engine oil.

-- Press the lower section of the intake manifold with the fuel rail evenly onto the fuel injectors.

-- Tighten the bolts and nut -arrows- on the lower section of the intake manifold diagonally in stages.

Fig 1: Removing Intake Manifold

Courtesy of AUDI OF AMERICA, LLC

Tightening specifications, refer to INTAKE MANIFOLD, LOWER SECTION, WITH FUEL RAIL OVERVIEW , see Figure.

-- Disconnect the electrical connector -2- on the fuel pressure sensor.

-- Install the high pressure line -1- on the fuel rail. Refer to HIGH PRESSURE LINES .

Fig 2: Fastening High-Pressure Line At Fuel Rail Using Torque Wrench VAG 1331 With Open End Wrench Socket VAG 1331/2

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Check fuel system for leaks.