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Removing and installing intake air temperature senderG42 / intake manifold pressure senderG71 > < Checking fuel pressure and residual pressure (up to high-pressure pump)

A1

Removing and installing high-pressure pipe
Removing and installing high-pressure pipe
Special tools and workshop equipment required
   
t  Open end spanner insert, AF 17 -V.A.G 1331/6-
Removing
  WARNING
The fuel system is pressurised. The fuel pressure in the high-pressure part of the injection system must be reduced to a residual pressure prior to opening; for procedure see → Chapter.
  W00-1126
–  Remove union nuts -arrows- and bolt -1- and detach high-pressure pipe.
  Note
Disregard -item 2-.
Installing
l  Tightening torques → Chapter „High-pressure pump - exploded view“
  Note
t  Renew connecting piece.
t  The connections of the high-pressure pipe must not be damaged.
t  Do not attempt to bend high-pressure pipe to a different shape.
  A15-10540
–  First tighten union nut by hand until it makes contact, making sure that high-pressure pipe is not under tension.
–  Tighten union nut with torque wrench -V.A.G 1331- and open end spanner insert (AF 17) -V.A.G 1331/6-; to do so, counterhold at hexagon flats of threaded connection with an open-end spanner.
–  Do not tighten bolt for retainer until high-pressure pipe has been tightened.
  A23-10096

Removing and installing intake air temperature senderG42 / intake manifold pressure senderG71 > < Checking fuel pressure and residual pressure (up to high-pressure pump)