Balance Shaft Module With Oil Pump Overview

Balance shaft module, refer to OIL PAN OVERVIEW 

Oil filter bracket, refer to OIL FILTER BRACKET OVERVIEW 

Fig 1: Balance Shaft Module With Oil Pump Assembly Overview

Courtesy of AUDI OF AMERICA, LLC

1. Chain Guard
2. Chain
   • Mark direction of travel (installation position) using color marking before removing
3. Fitting Sleeves
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, refer to BALANCE SHAFT MODULE WITH OIL PUMP 
6. Bolt
   • 9 Nm
7. Cover
   • Prevents engine oil from foaming up
8. Bolt
   • 40 Nm
9. Bolt
   • 8 Nm
10. Oil Intake Pipe
    • Clean the screen if it is dirty.
11. O-ring
    • Replace
12. Bolt
    • Replace
    • Note different length of bolts, refer to Fig 2
    • Tightening sequence, refer to Fig 3
13. Bolt
    • Replace
    • Note different length of bolts, refer to Fig 2
    • Tightening sequence, refer to Fig 3
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. Bolt
    • Replace
    • 20 Nm plus an additional 90° turn
19. Chain Tensioner with Tensioning Rail
    • Pre-load to install, refer to CHAIN TENSIONER, TENSIONING 
20. Bolt
    • 15 Nm

Fig 2: Bolt Allocation For Balance Shaft Housing

Courtesy of AUDI OF AMERICA, LLC

A - Hex collar bolt M7 X 40

B - Hex collar bolt M7 X 70

C - Hex collar bolt M7 X 90

D - Hex collar bolt M7 X 55

E - Sealing plug with O-ring

Fig 3: Balance Shaft Housing Bolt Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Hand-tighten bolts -A-.

-- Tighten the bolts -arrows- in a diagonal sequence from inside to outside to 15 Nm.

-- Turn bolts -arrows- an additional 90° (¹ /₄ turn) in a diagonal sequence from inside to outside using a rigid wrench.