Connecting Piece, Replacing

Special tools and workshop equipment required 

• Torque Wrench 1783 - 2-10Nm:VAG1783 
  Fig 1: Identifying Torque Wrench

  Courtesy of AUDI OF AMERICA, LLC
• Torque Wrench 1783 - Open Jaw - 10mm:VAG1783/1 
  Fig 2: Identifying V. A. G 1783/1

  Courtesy of AUDI OF AMERICA, LLC
• Hose Cutting Pliers:VAS6228 
  Fig 3: Air Hose Pliers VAS 6228

  Courtesy of AUDI OF AMERICA, LLC

Procedure

If the connector leaks it the air line can be shortened by 10 mm and a new connecting piece installed if it is long enough,

TIP:

Make sure the routing of the lines is not changed significantly by shortening the air line.

• Replace the connecting piece after removing
• Clean separation point area before disconnecting air line connector.
• Contaminants entering the lines can lead to system malfunction.

-- Remove the connector piece and the air line.

-- Remove the cutting ring from the air line.

-- Using the Hose Cutting Pliers:VAS6228  , cut the air line behind the pressure point from cutting ring at right angle.

Fig 4: Identifying End Line Mark On Air Line For Vehicle

Courtesy of AUDI OF AMERICA, LLC

-- Mark the air line ends of the air line in the vehicle with a waterproof felt-tip marker.

TIP:

With 17 mm or 22 mm marks, it is checked whether the connector piece is inserted far enough in air line.

-- Install the new connecting piece by hand and tighten.

-- Only remove the transport protection caps -2 and 3- after connecting air line -4-.

Fig 5: Identifying Transportation Caps, Air Line, Safety Devices, And Connecting Piece

Courtesy of AUDI OF AMERICA, LLC

-- Route the air line with the applicable clips/grommets in the vehicle. If necessary replace the cut cable tie.

-- Remove the transport protection caps.

-- Slide the air line -4- in with some force as far as stop in the connector piece -1-.

• Air lines are installed correctly when only one of the two markings is visible -arrow A-.

Tightening Specifications

• Refer to OVERVIEW - AIR LINES 
• Refer to OVERVIEW - MUFFLER .