Toothed belt, removing and installing: Removing

• Remove ribbed belt. See RIBBED BELT, REMOVING AND INSTALLING .
• Remove bolts -arrows- and remove engine cover panel -C-.
  Fig 1: Removing Bolts And Engine Cover Panel

  Courtesy of AUDI OF AMERICA, INC.
• Remove pressure hoses -arrows- between charge air coolers and pressure lines (left and right sides).
  Fig 2: Removing Pressure Hoses Between Charge Air Coolers And Pressure Lines

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• Remove pressure lines -1-.
  NOTE: Watch position of retaining strips -2-.
  Fig 3: Removing Pressure Lines

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• Remove tensioner -1- for ribbed belt. See Fig 4.
• Remove left and right toothed belt guards -2-.
• Remove center toothed belt guard -3-.
  Fig 4: Removing Tensioner For Ribbed Belt

  Courtesy of AUDI OF AMERICA, INC.
• Turn crankshaft to TDC by hand. Marks -A- and -B- must be aligned. See Fig 5.
  NOTE: Turn over the engine at the central bolt on the crankshaft.
  Fig 5: Turning Crankshaft To TDC By Hand

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• Check position of camshafts: larger holes in securing plates on camshaft sprockets must align opposite one another on the inside. If not, turn crankshaft one revolution further.
• Remove sealing plug from cylinder block, left.

TDC drilling in the crankshaft must be visible (or able to be felt) in line with the sealing plug hole.

• Screw clamping bolt 3242 for crankshaft into sealing plug hole and tighten.
  Fig 6: Screwing Clamping Bolt 3242 For Crankshaft Into Sealing Plug Hole

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• Remove vibration damper on crankshaft.
  NOTE: The central bolt does not have to be loosened to remove the vibration damper.
  Fig 7: Removing Vibration Damper On Crankshaft

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• Remove idler wheel for ribbed belt -arrows-.
• Remove toothed belt guard behind vibration damper -arrows-.
  Fig 8: Removing Idler Wheel For Ribbed Belt And Toothed Belt Guard Behind Vibration Damper

  Courtesy of AUDI OF AMERICA, INC.
  NOTE:

  • Mark the direction of rotation of the toothed belt with chalk or felt pen before removing. A used belt can break if it rotates in the wrong direction when reinstalled.
  • The toothed belt tensioning element is oil-damped and can therefore only be compressed slowly by applying constant pressure.
• Using a hex key, turn toothed belt tensioning roller -1- clockwise 8 mm in direction of arrow until tensioning lever -2- compresses tensioning element -3- sufficiently to enable special tool T400 11 to be fitted in drilling and in plunger.
  Fig 9: Turning Toothed Belt Tensioning Roller Using A Hex Key

  Courtesy of AUDI OF AMERICA, INC.
• Insert special tool T 400 11, release toothed belt tensioning roller.
• Remove toothed belt.