audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Chain drive > < Renewing timing chain cover (bottom)
Renewing oil seal for vibration damper
Renewing oil seal for vibration damper
Special tools and workshop equipment required
   
t  Locking pin -T10060 A-
  W00-10235
t  Counterhold tool -T10355-
  W00-10474
t  Thrust piece -T10368-
  W00-10550
t  Thrust piece -T10354-
Removing
–  Remove front noise insulation → Rep. gr.66.
  W00-10473
–  Take electrical connector -1- for radiator fan out of bracket and unplug connector (push retainer to the rear -arrow- and press down release catch).
–  Move clear electrical wiring harness going to radiator fan control unit.
  A19-10591
–  Unplug electrical connectors -2- and -3-.
  Note
Some versions have only one radiator fan.
–  Unscrew bolt -arrow- and remove radiator fan control unit -1-.
  A19-10626
  Caution
If a used belt runs in the opposite direction when it is refitted, this can cause breakage.
Before removing, mark direction of rotation of poly V-belt with chalk or felt-tip pen for re-installation.
–  To slacken poly V-belt turn tensioner in direction of -arrow-.
–  Lock tensioner with locking pin -T10060 A-.
–  Take off poly V-belt.
  Caution
Risk of irreparable damage to engine.
To avoid disturbing valve timing, do not turn crankshaft out of „TDC“ position when vibration damper is removed.
  A13-10904
–  Turn vibration damper to „TDC“ position -arrow- using counterhold tool -T10355-.
l  Notch on vibration damper must align with arrow marking on cover for timing chains (bottom).
–  Remove bolt for vibration damper using counterhold tool -T10355-.
  A13-10442
–  Detach vibration damper and fit thrust piece -T10368- in its place.
–  Pull out oil seal.
Installing
l  Tightening torques → Chapter „Cylinder block (pulley end) - exploded view“
–  Clean contact surface and sealing surface.
–  Remove thrust piece -T10368-.
  A15-10471
–  Use thrust piece -T10354- and bolt for vibration damper to pull in oil seal -arrow- onto stop.
  Note
t  Renew bolt for vibration damper.
t  Renew O-ring.
Further assembly is basically carried out in reverse order of dismantling. Note the following:
–  Install vibration damper → Chapter.
–  Install poly V-belt → Chapter.
  A15-10449

Chain drive > < Renewing timing chain cover (bottom)