Preparations For Checking The Massage Mat Air Cushion For Leaks

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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 rear seat.

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

Multi-contour seat released in the vehicle and folded forward with electrical harness connectors connected. Refer to REAR SEAT BACKREST, REMOVING AND INSTALLING, MULTI-CONTOUR SEAT .

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

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-- Disconnect the pneumatic lines for all of the massage mat air cushions.

-- To do this, press the release ring -2- in the direction of the valve block -1- -arrow A- and at the same time pull out the pneumatic line -3- -arrow B-.

-- To check in the "Guided Fault Finding" , remove both of the valve block from the module carrier (refer to MASSAGE MAT VALVE BLOCK, REMOVING AND INSTALLING ) and reinstall them at their respective opposite sides.

-- Connect the connectors.

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