Preparations For Checking The Lumbar Support Air Cushion For Leaks, H O RBIGER MULITCONTOUR Seat

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Special tools and workshop equipment required

Pneumatic Repair Set VAS6618 A
Vehicle Diagnostic Tester

NOTE:

When an appropriate entry is made in the event memory, you are prompted 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.

For the connection diagram with assignment of the pneumatic lines to the air cushions, refer to CONNECTION DIAGRAM - PNEUMATIC SYSTEM .

Procedure

Fig 1: Mark The Assignment Of Pneumatic Lines

Courtesy of AUDI OF AMERICA, LLC

The backrest cover is removed. Refer to Removing and Removing .

-- Before disconnecting, mark the assignment of the pneumatic lines to each other using a waterproof permanent marker.

NOTE:

If only one error is displayed for an air cushion, it suffices to disconnect only two pneumatic lines at the described points. Refer to PREPARATIONS FOR CHECKING THE LUMBAR SUPPORT AIR CUSHION FOR LEAKS, H O RBIGER MULITCONTOUR SEAT => .

-- Disconnect pneumatic lines to the lumbar support air cushions at the following points (refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING ):

a - 40 mm

b - 40 mm

c - 40 mm

-- For checking in the "Guided Fault Finding", connect the air cushion and valve block connections in a diagonal sequence as follows:

If there is an error in the upper or center lumbar support air cushion
Hose to the	at connection on the multi-contour seat control module for the
upper lumbar support air cushion	center lumber support air cushion
center lumber support air cushion	upper lumbar support air cushion

If there is an error in the lower lumbar support air cushion
Hose to the	at connection on the multi-contour seat control module for the
lower lumbar support air cushion	center lumber support air cushion
center lumber support air cushion	lower lumbar support air cushion

-- To connect, attach the Connecting Sleeves VAS 6618/2 to the pneumatic lines.

Fig 2: Attach The Connecting Sleeves

Courtesy of AUDI OF AMERICA, LLC

NOTE:

To connect, insert the pneumatic lines in the Connecting Sleeves VAS 6618/2 from both sides -A arrows-.

To release, push release rings -B arrows- and simultaneously remove pneumatic lines -C arrows-.

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