Air Line, Servicing: Notes

• Both rear axle air lines (blue and black) are completely replaced if there is a damage claim. The repair of a damaged line is not permitted.
• The front axle and pressure reservoir air lines are routed in the wiring harness and can be repaired.

Special tools and workshop equipment required 

• Torque Wrench 1783 - 2-10Nm:V.A.G 1783 
  Fig 1: Identifying Torque Wrench

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

  Courtesy of AUDI
• Hose Cutting Pliers:VAS 6228 
  Fig 3: Air Hose Pliers VAS 6228

  Courtesy of AUDI
• Air line repair kit. Refer to the appropriate Electronic Parts Information.

Repair 1

• The damaged point of the air line in the wiring harness is not larger than the coupling itself and is not located in a bend of the line routing.

-- Free up the corresponding air line from the wiring harness.

-- Remove the damaged location.

-- Connect the ends of the original line with a coupling from the repair kit.

-- Rebundle the wiring harness after servicing.

Repair 2

• The damaged point of an air line in the wiring harness is larger than the coupling itself.

-- Open the wiring harness at the damaged location.

-- Remove the faulty section of the air line.

-- Starting at the solenoid valve block, suspension strut or pressure reservoir route the repair piece parallel to the original wiring harness.

-- Connect the ends of the lines with a coupling from the repair kit.

• To prevent leaks, the air line in front of and behind the coupling must run straight to a length of 100 mm.