Driver And Front Passenger Multi-Contour Seat Compressor -V439- / -V440- And Pressure Line, Preparations For Leak Check
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 .
Special tools and workshop equipment required
- Vehicle Diagnostic Tester
- Digital Pressure Sensor:VAG1397B
- Pneumatic Repair Set:VAS6618 A
Procedure
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 -V439- / -V440-.
- The backrest cover is removed. Refer to BACKREST COVER, REMOVING AND INSTALLING .
-- Disconnect the pneumatic line -1- to the -V439- / -V440- at the marking -arrow-. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .
-- Using hoses and connectors from the :VAS6618 , connect the :VAG1397A with the pneumatic line -1- coming from the compressor.
To connect, insert the pneumatic lines into the :VAS6618/3 from both sides -A arrows-.
To release, push the release rings -B arrows- and simultaneously remove pneumatic lines -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.
- Front seat released in the vehicle and folded forward with the connectors connected. Refer to FRONT SEAT, REMOVING AND INSTALLING .
-- Disconnect the pneumatic line -1- from the compressor -2- at the marking -arrow-. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .
-- Using the hose and connectors from the :VAS6618 , connect the :VAG1397A with the pneumatic line -1- for the compressor -2-.
-- Connect the pneumatic lines following the leak test. Refer to PNEUMATIC LINES, DISCONNECTING AND CONNECTING .