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Home >> Audi >> 2017 >> TT Quattro Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Seat Frames [Coupe]) >> 72 Seat Frames >> Front Seat Pneumatic System >> Pneumatic System, Checking >> Driver Multi-Contour Seat Compressor -V439- /Front Passenger Multi-Contour Seat Compressor -V440- AND PRESSURE LINE, PREPARATIONS FOR LEAK CHECK

Driver Multi-Contour Seat Compressor -V439- /Front Passenger Multi-Contour Seat Compressor -V440- AND PRESSURE LINE, PREPARATIONS FOR LEAK CHECK

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

Special tools and workshop equipment required 

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 seat.

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

Procedure 

GWWA72-11881Courtesy of AUDI OF AMERICA, LLC

In one of the test steps in the "Guided Fault Finding"  , there is a prompt to connect the : VAG1397A  at the pneumatic line from the Driver Multi-Contour Seat Compressor -V439- / Front Passenger Multi-Contour Seat Compressor -V440-.

-- Disconnect the pneumatic line -1- to the Driver Multi-Contour Seat Compressor -V439- /Front Passenger Multi-Contour Seat Compressor -V440- at the following locations. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .

-- Using hoses and adapter pieces from the : VAS6618  , connect the : VAG1397A  with the pneumatic line -1- coming from the compressor.

GWWA72-11835Courtesy of AUDI OF AMERICA, LLC
NOTE:

To connect, insert the pneumatic lines into the : VAS6618/3  from both sides in direction of -A arrows-.

Fig 1: Attach The Connecting Sleeves
GWWA72-11372Courtesy of AUDI OF AMERICA, LLC

To release, push the release rings in direction of -B arrows- and simultaneously remove pneumatic lines in direction of -C arrows-.

In one of the test steps in the "Guided Fault Finding"  , there is a prompt to connect the : VAG1397A  directly to the compressor.

GWWA72-11882Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the pneumatic line -2- from the compressor -1- at the following locations. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .

-- Using line and adapter pieces from the : VAS6618  , connect the : VAG1397A  with the pneumatic line -1- for the compressor -2-.

GWWA72-11836Courtesy of AUDI OF AMERICA, LLC

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