audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

ABOUT US
Removing and installing exhaust manifold > < Separating centre and rear silencers

A3 Mk1

Removing and installing front exhaust pipe with catalytic converter
Removing and installing front exhaust pipe with catalytic converter
   
Removing
–  Unbolt protective cover -2--arrows-.
–  Unplug electrical connectors and move aside wiring for Lambda probes -1- and -3-.
  Note
  A24-0301
To avoid any damage, the flexible joint in the front exhaust pipe must not be bent more than 10°.
–  Unbolt front exhaust pipe from turbocharger -arrows-.
  A10-0922
–  Disconnect exhaust system at clamp -arrows- and detach front exhaust pipe with catalytic converter.
Installing
Installation is carried out in the reverse order; note the following:
  Note
Renew gaskets and self-locking nuts.
–  Align exhaust system so it is free of stress → Chapter.
Tightening torques
  V26-0733
ComponentNm
Lambda probe to front exhaust pipe55 1)
Front exhaust pipe to turbocharger40
l  1) The threads on the new Lambda probes are coated with a special assembly paste. If re-installing old Lambda probe, coat thread with high-temperature paste: Refer to → Parts catalogue for high-temperature paste. The assembly paste/high-temperature paste must not get into the slots on the probe body.

   

Removing and installing exhaust manifold > < Separating centre and rear silencers