Audi Workshop Service and Repair Manuals > A4 Mk1 > Power unit | 4-cylinder engine (5-valve turbo), mechanics | Exhaust system | Secondary air system | Removing and installing combination valve for secondary air system

Removing and installing combination valve for secondary air system

Removing

–	Release quick-release fasteners and remove engine cover panel -arrows-.

–	Detach hoses -1 and 2- from combination valve for secondary air system.

Note

For illustration purposes, the installation position is shown from the rear and with the engine removed.

–	Remove bolts -arrows- and detach combination valve for secondary air system.

Installing

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

Note

t	Renew seals and/or gaskets.

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

Tightening torque

Component	Nm
Combination valve for secondary air to cylinder head	10

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