Audi Workshop Service and Repair Manuals > A4 Mk1 > Power unit | 6-cylinder engine, 2.7 ltr. 5-valve turbo (RS4), mechanics | Exhaust system | Secondary air system | Removing and installing combination valve for secondary air system (right-side)

Removing and installing combination valve for secondary air system (right-side)

Removing

–	Unfasten screw connections -arrows- and detach engine cover panels -A ... C-.

–	Unscrew hose connections and bolt connections on the air duct at the points indicated by -arrows- and remove the air duct.

–	Remove cover -1- at right of engine compartment.

Note

Disregard items marked -2- and -3-.

–	Detach electrical connector at air mass meter -G70-.

–	Remove air mass meter -G70--arrows-.

–	Detach air hose -3- and vacuum hose -4- from combination valve for secondary air system.

–	Unscrew bolts -1-, -2- and -5- and remove combination valve for secondary air system.

Note

Shown from rear for illustration purposes.

Installing

Installation is carried out in the reverse order; note the following:

Note

t	Renew seals and gaskets.

t	Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue.

Tightening torques

Component	Nm
Combination valve for secondary air to connection	10
Connection to cylinder head	10
Air duct to intake manifold	10

Audi Workshop Service and Repair Manuals