audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing toothed belt > < Toothed belt drive with hydraulically damped tensioning roller
Toothed belt drive - exploded view
   
Toothed belt drive - exploded view
1 - Toothed belt cover (top)
2 - Toothed belt
q   Check for wear
q   Before removing, mark direction of rotation with chalk or felt-tipped pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage
q   Removing → Chapter
q   Installing (adjusting valve timing) → Anchor
3 - Nut
q   20 Nm + 45° (1/8 turn further)
4 - Tensioning roller
5 - Bolt
q   100 Nm
6 - Bolt
q   25 Nm
7 - Camshaft sprocket
8 - Hub
q   With sender wheel
q   Use counterhold tool -T10051- when loosening and tightening
q   To remove, use puller -T10052-
q   Removing and installing → Chapter „Removing and installing camshaft“
9 - Bolt
q   Install using locking fluid; for locking fluid refer to → Parts catalogue
q   10 Nm
10 - Toothed belt cover (rear)
11 - Sealing grommet
q   Renew if damaged
12 - Tensioner for toothed belt
13 - Idler roller
14 - Coolant pump
q   Removing and installing → Chapter
15 - Crankshaft sprocket
16 - Bolt
q   Renew
q   120 Nm +90° (1/4 turn further)
q   Use counterhold tool -3415- when loosening and tightening
q   Do not additionally oil or grease the threads and shoulder
17 - Bolt
q   15 Nm
18 - Bolt
q   20 Nm
19 - Toothed belt cover (bottom)
20 - Vibration damper
q   Installation position: hole in vibration damper must be positioned over raised section of toothed belt sprocket
21 - Bolt
q   10 Nm +90° (1/4 turn further)
22 - Toothed belt cover (centre)

   

Removing and installing toothed belt > < Toothed belt drive with hydraulically damped tensioning roller