Cylinder head, assembly overview: Notes
WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Replace cylinder head bolts.
- Always replace self-locking nuts, bolts which have been tightened to tightening torque as well as gaskets and O-rings.
- When installing a replacement cylinder head with camshafts installed, contact surfaces between roller rocker lever and cam running surfaces must be oiled.
- The plastic protectors installed to protect the open valves must only be removed immediately before installing the cylinder head.
- When replacing the cylinder head or cylinder head gasket, coolant must be completely replaced.
1 - Bolt
- Tightening order Cylinder head cover tightening sequence
2 - Cylinder head cover
- Removing and installing → Cylinder head cover, removing and installing
3 - Gasket
- Replace if damaged or leaking
4 - Valve housing
5 - Oil filler cap
6 - Gasket
- Replace if damaged or leaking
7 - 4 Nm
8 - Cylinder head cover gasket
- Replace if damaged or leaking
9 - Vacuum pump
10 - 4 Nm
11 - Camshaft Adjustment Valve 1 N205
12 - Seal
- Replace
13 - 10 Nm
14 - Cable bracket
15 - Seal
- Replace if damaged or leaking
16 - 10 Nm
17 - Housing
18 - Gasket
- Replace
19 - Transport strap
20 - 25 Nm
21 - 10 Nm
- Stud bolt for intake manifold
22 - Partition plate
23 - Cylinder head gasket
- Replace
- Note installation position: Part number facing cylinder head
24 - 10 Nm
25 - Camshaft Position (CMP) sensor G40
26 - Seal
27 - 10 Nm
- Stud bolt for tensioning roller
28 - 20 Nm
- Stud bolt for exhaust manifold
29 - Cylinder head bolt
- Replace
- Observe sequence for loosening. Refer to → Loosen cylinder head bolts, paying attention to sequence of cylinder head bolts. under Cylinder head, removing
- Observe sequence for tighten cylinder head in sequence indicated, in two stages as follows:
- Torque specification: 40 Nm plus an additional 1 /2 turn (180 °)