Audi Workshop Service and Repair Manuals

Removing and installing starter catalytic converter

Removing –  Remove front left wheel. –  On vehicles with auxiliary/additional heater, remove bolts -arrows- securing exhaust pipe for auxiliary/additional heater to noise insulation.

–  Release fasteners -1 … 3- and take off front and rear noise insulation.

–  Remove noise insulation -1- in wheel housing (left-side).

–  Unbolt heat shield -arrows- for drive shaft (left-side) -1-.

–  Unbolt front exhaust pipe from starter catalytic converter -1-.

–  Unscrew bolt -arrow- at bracket for front exhaust pipe.   Note Illustration shows vehicle with manual gearbox.

–  Pull off engine cover panel -arrows-.

–  Remove heat shield above turbocharger -arrows-.

–  Unscrew nuts -1- and remove starter 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

Component	Nm
Starter catalytic converter to turbocharger	27 → Note → Note
Heat shield to turbocharger	9
Starter catalytic converter to front exhaust pipe	27 → Note
Mounting plate to front exhaust pipe	25
Drive shaft heat shield to gearbox	23

1)  Renew nuts. 2)  Coat with high-temperature lubricant; for high-temperature lubricant refer to → Parts catalogue