Preparations For Checking the Massage Mat Air Cushion For Leaks

Preparations for Checking the Massage Mat Air Cushion for Leaks

• When an appropriate entry is made in the event memory, you are prompted in "Guided Fault Finding" to perform a leak check. Refer to Vehicle diagnostic tester.

• Then the preparations for this leak test are described that must be carried out directly in the front seat.

• Connection diagram with assignment of the pneumatic lines to the air cushions. Refer to => [ Pneumatic Components on Multi-contour Seat, Connection Diagram ] Pneumatic Components on Multi-Contour Seat, Connection Diagram.

Procedure






• The backrest cover must be removed. Refer to => [ Backrest Cover ] Backrest Cover.

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

- Disconnect pneumatic lines - 1 to 10 - to all air cushions of the massage mat at the following points. Refer to => [ Disconnecting and Connecting Pneumatic Lines ] Disconnecting and Connecting Pneumatic Lines:

a 40 mm

- To check in the "Guided Fault Finding", detach both valve blocks at the module carrier, refer to => [ Valve Blocks N475/N476/N477/N478 for Massage Mat ] Valve Blocks N475/N476/N477/N478 For Massage Mat and connect them to the pneumatic lines on the respective opposite side.

- For the connection, attach connecting sleeve (VAS 6618/4) to the pneumatic lines.






- Connect electrical harness connectors.

• For the connection, insert pneumatic lines in the connecting sleeves (VAS 6618/4) of both sides - A arrows -.

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

- In one of the test steps in the "Guided Fault Finding", you are prompted to disconnect the electrical harness connectors at the solenoid valve blocks and connect them in diagonal sequence by releasing the solenoid valve blocks from the module carrier where required.

- Connect pneumatic lines following the leak check. Refer to => [ Disconnecting and Connecting Pneumatic Lines ] Disconnecting and Connecting Pneumatic Lines.