Combination valve (right) for secondary air system, removing and installing: Removing

• Remove air filter housing. See REMOVING .
• Detach both air ducts going to lock carrier.
• Unscrew bolts -1- and -2-. See Fig 1.
• Remove crankcase breather pipe (arrows).
Fig 1: Removing Crankcase Breather Pipe
Courtesy of AUDI OF AMERICA, INC.
• Disengage electrical connectors -1- to -4- from retainer on right side of bulkhead.
  Fig 2: Disengaging Electrical Connectors From Retainer On Right Side Of Bulkhead

  Courtesy of AUDI OF AMERICA, INC.
• Unbolt bracket from bulkhead.
• Disconnect secondary air hoses at points marked with (arrows).
• Remove bolts -1- and -2- and take off secondary air pipe.
  Fig 3: Removing Bolts And Take Off Secondary Air Pipe

  Courtesy of AUDI OF AMERICA, INC.

NOTE: Illustration shows engine from rear.

• Disconnect vacuum hose (arrow).
• Remove bolts -1- and -2- and detach combination valve.

Fig 4: Removing Bolts And Detaching Right Side Combination Valve

Courtesy of AUDI OF AMERICA, INC.

NOTE: Illustration shows engine from rear.