723819 Removing and installing air cushion control valve
WM 723819 Removing and installing air cushion control valve
Information
Installation position of control valve for air cushion
Installation position of control valve for air cushion
Preliminary work
Information
- The front seat only needs to be removed if the control valve for the seat and backrest air cushions is to be removed on the sports seat.
- Only the padding for the middle backrest needs to be removed when removing the control valves for the lumbar air cushions.
1. Remove padding for front middle backrest.
-> 741819 Removing and installing padding for front middle backrest - section on "Removing" 741819 Removing and installing padding for front middle backrest
2. Remove front seat.
-> 720119 Removing and installing front seat - section on "Removing" 720119 Removing and Installing Front Seat
Removing air cushion control valve
Removing control valve for air cushion on comfort and sports seats
1. Remove control valve for lumbar air cushion -1- at the left and right from the guide -arrow-.
Left and right control valves for lumbar air cushion
2. Pull pressure line -1 and 2- off control valve for lumbar air cushion -arrow-.
Disconnecting pressure line
3. Release and pull off electric plug connection -1- ( -arrow- ).
Pulling off connector
4. Remove control valve for air cushion.
Removing control valve for air cushion on sports seat
1. Disconnect pressure line for air cushion for seat.
Disconnecting pressure line for air cushion for seat
1.1. Place seat on its side.
1.2. Disconnect pneumatic plug connection -1- on the underside of the seat -arrow A-.
1.3. Remove pressure line -2- from the holder -3- ( -arrow B- ).
2. Pull pressure line for air cushion for seat out of the backrest area.
Cutting tie-wraps
2.1. Cut tie-wraps -1-.
2.2. Pull pressure line for air cushion for seat -2- in the backrest area up towards the control valve.
3. Disconnect pressure line for air cushion for backrest.
Disconnecting pressure line for backrest air cushion
3.1. Disconnect pneumatic plug connection -1- ( -arrow- ).
3.2. Pull pressure line -2- in the backrest area up towards the control valve.
4. Remove control valve for air cushions for seat and backrest from the guide -arrow A-.
Control valve for air cushion for seat and backrest
5. Pull the pressure line -1- off the control valve -arrow B-.
6. Release and pull off electric plug connection -1- ( -arrow- ).
Pulling off connector
7. Remove control valve for air cushions for seat and backrest
Installing air cushion control valve
Installing control valve for air cushion on comfort and sports seats
1. Plug in electric plug connection -1- until it engages securely -arrow-.
Plugging in connector
2. Connect pressure line -1 und 2- to the connection for the control valve for the lumbar air cushion until it engages securely -arrow-.
Connecting pressure line
3. Insert control valve for lumbar air cushion -1- at the left and right into the guide -arrow-.
Left and right control valves for lumbar air cushion
Installing control valve for air cushion on sports seat
1. Plug in electric plug connection -1- until it engages securely -arrow-.
Plugging in connector
2. Connect pressure line -1- to the connection for the control valve for the air cushions for the seat and backrest until it engages securely -arrow A-.
3. Insert control valve for air cushions for seat and backrest into the guide -arrow B-.
Control valve for air cushion for seat and backrest
4. Connect pressure line for air cushion for backrest.
Connecting pressure line for air cushion for backrest
4.1. Route pressure line -2- in the backrest area from the control valve down towards the pneumatic plug connection.
4.2. Connect pneumatic plug connection -1- until it engages securely -arrow-.
5. Route pressure line for air cushion for seat in the backrest area.
Fitting tie-wraps
5.1. Route pressure line for air cushion for seat -2- in the backrest area from the control valve down towards the pneumatic plug connection.
5.2. Position pressure line for air cushion for seat -2- using tie-wraps -1-.
6. Connect pressure line for air cushion for seat.
Connecting pressure line for air cushion for seat
6.1. Place seat on its side.
6.2. Connect pneumatic plug connection -1- on the underside of the seat until it engages securely -arrow A-.
6.3. Position pressure line for air cushion for seat -2- using a holder -3- ( -arrow B- ).
Subsequent work
1. Secure padding for front middle backrest.
-> 741819 Removing and installing padding for front middle backrest - section on "Installing" 741819 Removing and installing padding for front middle backrest
2. Install front seat.
-> 720119 Removing and installing front seat - section on "Installing" 720119 Removing and Installing Front Seat