Audi Workshop Service and Repair Manuals

Detaching toothed belt from camshaft sprocket Special tools and workshop equipment required

t  Pin wrench -3387-

t  Locking plate -T10008-

Detaching toothed belt –  Move lock carrier to service position → Chapter. –  Release quick fasteners -arrows- and remove engine cover panel.   Note

Before removing, mark direction of rotation of poly V-belt with chalk or felt-tipped pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage. –  Turn the tensioner in the direction of the -arrow- to slacken the poly V-belt. –  Remove poly V-belt.

–  Remove toothed belt cover (top).   Caution The engine must only be turned at the crankshaft, in the direction of normal engine rotation (clockwise). –  Rotate crankshaft to TDC by turning bolt for toothed belt sprocket. l  Marking on camshaft sprocket and marking on crankshaft must be aligned to TDC -arrows-.   Caution t  The toothed belt tensioner is oil-damped and can therefore only be compressed slowly by applying constant pressure. t  To avoid damage, do not apply more force than necessary when compressing the toothed belt tensioner.

–  Applying constant and moderate force, use hexagon key to press toothed belt tensioner anti-clockwise in direction of -arrow- until piston of tensioner can be locked with locking plate -T10008-. –  Insert locking plate -T10008- and make sure that it remains in place.   Note

Do not to bend limit stop -A- of eccentric adjuster. –  To slacken toothed belt, loosen nut -1- on tensioning roller and turn eccentric adjuster clockwise -arrow- using pin wrench -3387-. –  Remove toothed belt from camshaft sprocket.

Fitting toothed belt –  Align markings on camshaft sprocket / cylinder head cover and markings on vibration damper / toothed belt cover -arrows-. –  Make sure that toothed belt tensioner is still locked with locking plate -T10008-. –  Fit toothed belt onto coolant pump, then tensioning roller, and finally camshaft sprocket. –  Tension toothed belt → Anchor. –  Install top section of toothed belt cover (make sure it engages securely on centre section of toothed belt cover). Remaining installation steps are carried out in reverse sequence; note the following: –  Install poly V-belt → Chapter.

–  Install lock carrier with attachments → General body repairs, exterior; Rep. gr.50. –  Allow stop for torque reaction support to rest on rubber buffer for torque reaction support under its own weight and tighten nuts -arrows-. –  Install front bumper cover → General body repairs, exterior; Rep. gr.63. –  Check headlight adjustment → Booklet8E. Tightening torques

Component	Nm
Tensioning roller for toothed belt to cylinder head	27 → Remark
Stop for torque reaction support to lock carrier	28

1)  Install using locking fluid; locking fluid → Parts catalogue.