Backrest Bolster Adjuster, Leak Test Preparation Work

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Vehicle Diagnostic Tester
Turbocharger Tester Kit: VAG1397A
Pneumatic Repair Set: VAS6618A

NOTE:

When an appropriate entry is made in the event memory, there is a prompt in "Guided Fault Finding" to perform a leak check using the Vehicle Diagnostic Tester.

Then the preparations for this leak test are described that must be carried out directly in the front seat.

Connection diagram with assignment of the pneumatic lines to the air cushions. Refer to CONNECTION DIAGRAM - PNEUMATIC SYSTEM .

Procedure

Courtesy of AUDI OF AMERICA, LLC

The backrest cover must be removed. Refer to BACKREST COVER, REMOVING AND INSTALLING, SPORT SEAT .

-- Before disconnecting, mark the allocation of the pneumatic lines to each other using a waterproof felt-tip pen.

-- Disconnect the pneumatic line -1- to the left backrest bolster adjuster air cushion at the following locations. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .

-a- = 200 mm

NOTE:

Ignore -items 2 and b-.

-- Using hose and adapter pieces from the : VAS6618 switch the : VAG1397A to the left backrest bolster adjuster air cushion.

Courtesy of AUDI OF AMERICA, LLC

In one of the test steps in the "Guided Fault Finding" , there is a prompt to connect the pneumatic line to the left backrest bolster adjuster with the right backrest bolster adjuster pneumatic line and to connect both pneumatic lines on the : VAS6618/10 .

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the pneumatic line -2- to the right backrest bolster adjuster air cushion at the following locations:

-b- = 200 mm

NOTE:

Ignore -Items 1 and a-.

-- Connect the pneumatic line to the left and right backrest bolster adjuster and the : VAS6618/10 .

Courtesy of AUDI OF AMERICA, LLC

In one of the test steps in the "Guided Fault Finding" , there is a prompt to connect the pneumatic line to the left backrest bolster adjuster and to switch the : VAG1397A in the pneumatic line to the right backrest bolster adjuster air cushion using hose and adapter pieces.

Courtesy of AUDI OF AMERICA, LLC

-- Connect the pneumatic lines following the leak test. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .