Part II balance shaft assembly with oil pump, component overview

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.

Part I Oil pan, balance shaft assembly → Part I oil pan, balance shaft module, component overview

Fig 1: Part II Balance Shaft Assembly With Oil Pump, Component Overview

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Chain guard

2 - Chain

Mark direction of travel (installation position) using color marking before removing

3 - Alignment bushing

4 - Intermediate plate

5 - Balance shaft module with oil pump

Before installing, check to be sure both alignment bushings are present (for centering oil pump/cylinder block)
Removing and installing → Balance shaft module with oil pump, removing and installing

6 - 9 Nm

7 - Cover

Prevents engine oil from foaming up

8 - 40 Nm

9 - 8 Nm

10 - Oil intake pipe

Clean strainer if dirty

11 - O-ring

Replace

12 - 15 Nm plus an additional ¹ /₄ turn (90 °)

Replace
Note different length of bolts Bolt allocation for balance shaft housing

13 - 15 Nm plus an additional ¹ /₄ turn (90 °)

Replace
With seal
Note different length of bolts Bolt allocation for balance shaft housing

14 - Outer rotor

Check contact surfaces for groove build-up
Marking must be visible

15 - Inner rotor

Check contact surfaces for groove build-up

16 - Oil pump cover

17 - Chain sprocket

18 - 20 Nm plus an additional 90 °

Replace

19 - Chain tensioner with tensioning rail

Pre-load to install

20 - 15 Nm