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Removing and installing cylinder head cover > < Cylinder head - exploded view

A4 Cabriolet Mk2

Cylinder head cover - exploded view
   
Cylinder head cover - exploded view
  Note
Diagram shows cylinder head cover on cylinder bank 2 (left-side).
1 - 9 Nm
2 - Bracket for intake connecting pipe
3 - 9 Nm
4 - O-ring
q   Renew
5 - Oil filler neck
q   To remove: Lift tab, turn oil filler neck anti-clockwise and take out
6 - Seal
7 - Seal
q   Renew if damaged or leaking
8 - Filler cap
9 - 5 Nm
10 - Fuel return line
q   Observe rules for cleanliness → Chapter
11 - Fuel rail
q   With high-pressure pipes
q   Observe rules for cleanliness → Chapter
q   Do not attempt to bend high-pressure pipes to a different shape
q   Tightening high-pressure pipe connections at fuel rails → Fig.
q   Tightening high-pressure pipe connections at injectors → Fig.
12 - 23 Nm
13 - O-ring
q   Renew
14 - 9 Nm
q   Tighten alternately in stages
15 - Clamping piece
q   Must be renewed if injector is renewed
16 - Injector
q   Observe rules for cleanliness → Chapter
q   Removing and installing → Chapter „Removing and installing cylinder head cover“
q   When an injector is renewed, also renew the high-pressure pipe and clamping piece at the same time
17 - O-ring
q   Renew
18 - Copper seal
q   Renew
19 - Special bolt, 9 Nm
q   Renew if damaged or leaking
q   Tighten in stages and in diagonal sequence
20 - Cylinder head cover
q   Removing and installing → Chapter
21 - Gasket for cylinder head cover
q   Renew if damaged or leaking

   
Tightening high-pressure pipe connections at fuel rails - vehicles up to 09.2005
–  Tighten union nuts on high-pressure pipes hand-tight initially.
–  Ensure that high-pressure pipes are not under tension.
–  To tighten unions of high-pressure pipes, use torque wrench -V.A.G 1331- with ratchet -V.A.G 1331/1- and socket, 14 mm -3150-.
l  Tightening torque: 25 Nm.
  A23-0225
Tightening high-pressure pipe connections at fuel rails - vehicles from 09.2005 onwards
–  Tighten union nuts on high-pressure pipes hand-tight initially.
–  Ensure that high-pressure pipes are not under tension.
–  To tighten unions of high-pressure pipes, use torque wrench -V.A.G 1331- and tool insert, AF 19 -V.A.G 1331/5-.
l  Tightening torque: 25 Nm.
  A23-10095
Tightening high-pressure pipes at injectors
–  Tighten union nuts on high-pressure pipes hand-tight initially.
–  Ensure that high-pressure pipes are not under tension.
–  To tighten unions of high-pressure pipes, use torque wrench -V.A.G 1331- with ratchet -V.A.G 1331/1- and socket -T40055-.
l  Tightening torque: 25 Nm.
  A13-10038

Removing and installing cylinder head cover > < Cylinder head - exploded view