Left cylinder head cover, removing and installing
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.
Special tools, testers and auxiliary items required
- Puller T40039
Removing
- Remove rear engine cover - arrows -.
- Remove front engine cover - arrows -.
- Remove coolant expansion tank - arrow -.
- Disconnect electrical connection from Engine Coolant Level (ECL) Warning Switch F66 at bottom of coolant reservoir and set aside coolant reservoir with coolant hoses - 1 - and - 2 - connected.
- Disconnect electrical harness connectors.
- Change-over valve for intake manifold flap N239
- Intake Manifold Tuning (IMT) Valve Position Sensor G513
- Disconnect electrical harness connectors.
- Camshaft position (CMP) sensor 2 G163
- Camshaft Adjustment Valve 2 N208
- Camshaft Adjustment Valve 2 (exhaust) N319
- Camshaft position (CMP) sensor 4 G301
- Remove bolts - arrows - and separate electrical connections at ignition coils.
- Set electrical wiring harness aside.
- Remove ignition coils using ignition coil puller T40039.
Fig 8: Removing Crankshaft Housing Ventilation Hose & Left Cylinder Head Cover Bolts Tightening Sequence
- Remove crankshaft housing ventilation hose - arrow -.
- Remove left cylinder head cover bolts in sequence - 12 to 1 -.
- Remove cylinder head cover.
Installing
Installation is in reverse order of removal, note the following:
NOTE:
- Replace cylinder head cover gaskets if damaged.
- Replace bolts for cylinder head cover if gasket is damaged.
- Clean sealing surfaces so they are completely free of any oil or grease.
- Tighten cylinder head cover in sequence - 1 to 12 -.
Torque specifications
| Component | Nm |
|---|---|
| Cylinder head cover to cylinder head | 9 |