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Removing and installing fuel pressure senderG247 > < Removing and installing intake manifold (top section)

A4 Mk3

Removing and installing intake manifold (bottom section) with fuel rail
Removing and installing intake manifold (bottom section) with fuel rail
Special tools and workshop equipment required
t  Torque wrench -V.A.G 1331-
   
t  Tool insert (open-end ring spanner, 17 mm) -V.A.G 1331/2-
Removing
  Note
The following description shows the removal and installation of the bottom section of the intake manifold (left-side). The procedure for the other side is more or less identical.
  WARNING
The fuel system operates at extremely high pressure. This can cause injury.
t  The fuel pressure in the high-pressure section of the injection system must be reduced to a residual pressure prior to opening the system → Chapter.
t  Wrap a clean cloth around the connection and carefully loosen the connection to allow the residual pressure to dissipate.
–  Remove intake manifold (top section) → Chapter.
  A13-10129
–  Unplug electrical connector at fuel pressure sender -G247--item 2-.
–  Remove union nut -1-.
–  Unscrew bolts and nuts -arrows- and detach intake manifold (bottom section) with fuel rail.
  Note
Seal intake ports on cylinder heads with clean cloths.
Installing
Installation is carried out in the reverse order; note the following:
  Note
t  If an injector has been pulled out of the cylinder head, the teflon ring seal must be renewed.
t  Renew gaskets and O-rings.
t  Lubricate O-rings of injectors lightly with clean engine oil.
–  Press intake manifold (bottom section) with fuel rail evenly onto injectors.
  A24-10407
–  Tighten bolts and nuts -arrows- for intake manifold (bottom section) in diagonal sequence and in stages.
t  Tightening torques: refer to → Chapter, → Fig..
–  Plug in electrical connector -2- at fuel pressure sender -G247-.
  A24-10407
–  Fit high-pressure pipe -1- on fuel rail → Chapter.
  Note
Check fuel system for leaks.
  A13-10129

Removing and installing fuel pressure senderG247 > < Removing and installing intake manifold (top section)