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Removing and installing secondary air pump > < Removing and installing combination valve for secondary air system (left-side)

A4 Mk3

Removing and installing combination valve for secondary air system (right-side)
Removing and installing combination valve for secondary air system (right-side)
   
Removing
–  Remove front silencer (right-side) → Chapter.
–  Remove plenum chamber partition panel → Rep. Gr.50.
–  Move fuel hose -1- and hose -2- from activated charcoal filter clear at air pipe.
–  Disconnect vacuum hose -3- from connection on air pipe.
–  Remove air pipe. To do so, release hose clip -4- and clamps -arrows-.
  A10-10933
–  Remove electrical connector -1- for Lambda probe after catalytic converter -G130- from bracket and unplug connector.
  Note
Disregard items marked -2, 3, 4- and -arrows-.
  A24-10516
–  Remove nuts -arrows- and bolt -1-, detach catalytic converter (right-side) from exhaust manifold and move to rear.
  A26-10352
–  Remove bolts -arrows- and detach heat shield -1-.
  A26-10847
–  Detach vacuum hose -2- from combination valve for secondary air system.
–  Remove bolts -3- and detach combination valve for secondary air system (right-side) and bolts -1- for secondary air hose.
Installing
l  Tightening torque → Chapter, → Fig.
Installation is carried out in the reverse order; note the following:
  Note
t  Renew gasket.
t  Hose connections and air pipes and hoses must be free of oil and grease before assembly.
t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Electronic parts catalogue.
t  To ensure that the air hoses can be properly secured at their connections, spray rust remover onto the worm thread of used hose clips before installing.
–  Install catalytic converter (right-side) → Chapter.
–  Install plenum chamber partition panel → Rep. Gr.50.
  A26-10436

Removing and installing secondary air pump > < Removing and installing combination valve for secondary air system (left-side)