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

• Remove air filter housing. See REMOVING .
• Unscrew bolt -1-.
• Remove crankcase breather pipe (arrows).
  Fig 1: Removing Crankcase Breather Pipe

  Courtesy of AUDI OF AMERICA, INC.

NOTE: Illustration shows engine from rear.

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

Fig 2: Removing Combination Valve - Left Side

Courtesy of AUDI OF AMERICA, INC.

NOTE: Illustration shows engine from rear.