Removing and Installing Air Cushion For Backrest

721719 Removing And Installing Air Cushion For Backrest






Preliminary work
1. Remove padding for front backrest.

NOTE: Only necessary if you are removing the hose for the air cushion control valve.

2. Remove cover for left backrest.

Removing air cushion for backrest






1. Remove the two tie-wraps -1-.






2. Pull off the two hoses for the air cushion for backrest -2- at the branch piece -3-.
3. Push out the pins -2- on the two expanding clips -1- (-arrow A-) and remove the expanding clips -1-.






4. Remove air cushion for backrest -3- (-arrow C-).
5. Pull air cushion for backrest -1- together with the hose out of the backrest frame.






Removing hose for air cushion control valve
1. Remove tie-wraps -2- and push hose -1- for air cushion control valve through in a downward direction -arrow A-.






2. Unclip the hose -1- at the holder -3- (-arrow B-).
3. Pull hose -1- off the air cushion control valve.






Installing air cushion for backrest

Installing hose for air cushion control valve
1. Push hose -1- onto the air cushion control valve.






2. Lay the hose -1- and clip it into the holder -3- (-arrow A-).






3. Pull the hose -1- through in an upward direction -arrow B- and secure with a new tie-wrap -2-.

Installing air cushion for backrest
1. Slide hose for the air cushion for backrest -1- into the backrest frame.






2. Position air cushion for backrest -3- (-arrow A-).






3. Secure the air cushion for backrest -3- with the two expanding clips -1- (-arrows B-). To do this, press the pins -2- into the expanding clips -1- (-arrow C-).
4. Slide the two hoses for the air cushion for backrest -2- onto the branch piece -3- and secure with two new tie-wraps -1-.






Checking seat following removal
1. Connect the removed seat to the vehicle's wiring harness via test cable 9745 and test cable 9745/1.
2. Connect electric plug to control module trim panel.
3. Connect the battery.
4. Switch on ignition.
5. Carry out a function check on the seat components.
6. Switch off ignition after function test and disconnect battery.
7. Disconnect test cable 9745 and test cable 9745/1.

Subsequent work
1. Install cover for left backrest.
2. Install padding for front backrest.