Audi Workshop Service and Repair Manuals

Note:

Mark direction of toothed belt with chalk or felt-tip pen prior to removal. Running a used belt in the opposite direction could destroy it.

• Top toothed belt guard
• ◆ To remove, take out air duct and slacken bracket for coolant pipes
• ◆ Engage carefully in lower toothed belt guard on installation
• Toothed belt
• ◆ Mark direction with chalk or felt-tip pen before removing
• ◆ Check for wear
• ◆ Removing => Page 13-36
• ◆ Installing (adjusting valve timing)
  => Page 13-44

• 20 Nm + further 45° (1/8 turn)
• Tensioning roller
• 100 Nm
• ◆ To slacken and tighten, use counterhold T10051
• 25 Nm
• Camshaft sprocket
• ◆ Mark installation position
• Hub
• ◆ With sender wheel for Hall sender
  -G40
• ◆ To slacken and tighten, use counterhold T10051
• ◆ To remove, use puller T10052
• ◆ Detaching => Page 15-32

• 10 Nm
• ◆ Apply locking fluid when fitting
• ◆ Locking fluid

=> Parts List

• Rear toothed belt guard
• Rubber grommet
• ◆ Replace if damaged
• Tensioner for toothed belt
• Idler wheel
• Coolant pump
• ◆ Removing and installing=>Page 19-17
• ◆ Check for smooth running

• Crankshaft toothed belt sprocket
• ◆ There must not be any oil on contact surface between toothed belt sprocket and crankshaft
• ◆ Can only be fitted in one position
• 120 Nm + further 90° (1/4) turn
• ◆ Replace
• ◆ Do not lubricate
• ◆ To slacken and tighten, use counterhold 3415=> Fig.13-35
• 13 Nm
• 20 Nm
• Lower toothed belt guard

• Pulley/vibration damper
• ◆ Can only be fitted in one position
  -offset holes-
• 10 Nm + further 90° (1/4) turn
• ◆ Replace
• Cover
• Centre toothed belt guard
• ◆ To remove, take out top toothed belt guard and unbolt ribbed belt tensioner

→ Fig.1    Removing and installing crankshaft toothed belt sprocket

• ‒ Use counterhold 3415 when slackening off and tightening central bolt.