Overview - Cylinder Block, Belt Pulley Side

Fig 1: Exploded View Of Cylinder Block, Belt Pulley Side

Courtesy of AUDI

1. Ribbed Belt
   • Check for wear
   • Do not kink
   • Ribbed belt routing. Refer to Fig 2.
   • Before removing, mark the running direction using chalk or a felt-tip pen.
   • Removing and Installing. Refer to RIBBED BELT, REMOVING AND INSTALLING .
   • When installing, make sure it is seated correctly on the ribbed belt pulleys
2. Bolt
   • The tightening specification depends on the vibration damper. Refer to Fig 4.
     • M16x75 bolt for vibration damper, version 1: 100 Nm +180°
     • M16x105 bolt for vibration damper, version 2: 240 Nm +180°
   • Replace after removing
   • There are different versions. Refer to the appropriate Electronic Parts Information for the allocation.
3. O-Ring
   • Included in a delivery package -item 2-  OVERVIEW - CYLINDER BLOCK, BELT PULLEY SIDE; cannot be delivered separately
4. Vibration Damper
   • With the ribbed belt pulley
   • There are different versions. Refer to Fig 4.
   • Removing and Installing. Refer to VIBRATION DAMPER, REMOVING AND INSTALLING .
5. Bolt
   • 8 Nm + 45°; gradually in a diagonal sequence
   • Replace after removing
6. Sub-Assembly Bracket
   • With oil filter housing and engine oil cooler
   • Removing and installing the sub-assembly bracket. Refer to SUB-ASSEMBLY BRACKET, REMOVING AND INSTALLING .
   • Removing and installing the engine oil cooler. Refer to ENGINE OIL COOLER, REMOVING AND INSTALLING .
7. Seal
   • Replace after removing
8. O-Ring
   • Replace after removing
   • Coat with coolant
9. Connection
10. O-Ring
    • Replace after removing
    • Coat with coolant
11. Bolt
    • Replace after removing
    • Tightening Specifications and Sequence. Refer to Fig 3.
12. Bolt
    • Tightening specification. Refer to OVERVIEW - GENERATOR .
13. Starter Generator -C29-
    • Overview. Refer to OVERVIEW - GENERATOR .
14. Tensioner
    • For the ribbed belt
    • There are different versions. Refer to the appropriate Electronic Parts Information for the allocation.
    • Removing and Installing. Refer to RIBBED BELT TENSIONER, REMOVING AND INSTALLING .
15. A/C Compressor
    • Removing and Installing. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING FROM BRACKET .
16. Bolt
    • Tightening specification. Refer to OVERVIEW - A/C COMPRESSOR .
17. Alignment Sleeves

Ribbed Belt Routing for Starter GeneratorC29

Fig 2: Ribbed Belt Routing for Starter Generator -C29-

Courtesy of AUDI

1. Vibration Damper
2. Ribbed Belt Tensioner Idler Pulley
3. Starter Generator -C29-
4. Ribbed Belt Tensioner Idler Pulley
5. A/C Compressor

Sub-Assembly Bracket - Tightening Specifications and Sequence

Fig 3: Sub-Assembly Bracket - Tightening Sequence

Courtesy of AUDI

• Replace bolts that were tightened with an additional turn after removing them.

-- Mount the sub-assembly bracket and then install the bolts -4- first.

-- Tighten the bolts -1 to 5- in stages in the sequence shown.

Vibration Damper - Versions

Fig 4: Vibration Damper - Versions

Courtesy of AUDI

A -  Version 1

• If the fan shroud is installed use the Wrench - 21mm:T40263  , Adapter:T40314  and the Wrench - 24mm to turn.
• Use the Counterhold:T40378  to counterhold.

B -  Version 2

• If the fan shroud is installed use the Offset Open-End Wrench - 24mm to turn.
• Use the Counterhold:T40379  to counterhold.