52 17 385 Replacing Gas Cartridge For Active Head Restraint On Left Or Right Front Seat
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Read and comply with safety regulations
for handling airbag modules and pyrotechnical belt tensioners. See 72 SAFETY PRECAUTIONS AND GENERAL INFORMATION
.
Improper handling can lead to triggering of the pyrotechnical seat belt tensioner or side airbag, resulting in injuries.
Improper handling can lead to triggering of the pyrotechnical seat belt tensioner or side airbag, resulting in injuries.
Switch off ignition!
Necessary preliminary tasks:
- Remove head restraint . See 52 14 390 REMOVING AND INSTALLING OR REPLACING FRONT LEFT OR RIGHT HEAD RESTRAINTS (NORMAL/ELECTRIC) .
- Remove rear panel on front seat backrest. See 52 14 198 REMOVING AND INSTALLING / REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL / ELECTRIC) .
Disconnect plug connection on gas cartridge.
Detach retaining points (1).
Slide active head restraint carrier downwards.
Release spring clips (1) and (2).
Release screws (1).
Remove gas cartridge complete with holder (2).
Release screws (1) on left and right.
Installation:
Insert screws (1) with Loctite.
Tightening torque. See SEATS - TIGHTENING TORQUES - ALPINA .
Slide top rail (3) off bottom rail (2).
Remove gas cartridge (4).
Installation:
Gas cartridge (1) is secured in holder by guide lug (2).
Procedure after triggered active head restraint:
- Push head restraint back into original position.
- Insert new gas cartridge with spring clips.
NOTE:
The gas cartridge may be replaced up to 5 times.
Then the backrest must be replaced.
Number of triggerings are stored in the control unit.
Then the backrest must be replaced.
Number of triggerings are stored in the control unit.