Preparations For Checking The Lumbar Support Air Cushion For Leaks, KONGSBERG MULITCONTOUR Seat

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Special tools and workshop equipment required

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: Disconnect Pneumatic Lines

Courtesy of AUDI OF AMERICA, LLC

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

-- Before disconnecting, mark the pneumatic line assignments to the connections at the valve block using a waterproof permanent marker.

-- Disconnect the pneumatic lines -1, 2 and 3- from the lumbar support air cushion.

NOTE:

If only one error is displayed for an air cushion, it will be enough to disconnect only two pneumatic lines. Refer to PREPARATIONS FOR CHECKING THE LUMBAR SUPPORT AIR CUSHION FOR LEAKS, KONGSBERG MULITCONTOUR SEAT => .

-- To do this, press the release mechanism -2- -arrow- and simultaneously remove the pneumatic line -1-.

Fig 2: Release Mechanism & Pneumatic Line

Courtesy of AUDI OF AMERICA, LLC

-- 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 the connection on the valve block to 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 the connection on the valve block to the
lower lumbar support air cushion	center lumber support air cushion
center lumber support air cushion	lower lumbar support air cushion

-- Connect the pneumatic lines and check them with a final tug, whether the coupling is locked in correctly.