General Information

The following general data is provided for servicing the ACSM:

• Disconnecting the battery terminals
• Checking components of the crash safety module
• Fitting approved seat covers

Disconnecting the battery terminals 

NB: After disconnecting the battery terminals, wait 1 minute before starting work on the ACSM safety system. 

After disconnecting the battery terminals, 1 minute must be waited before starting work on the ACSM safety system. The waiting period ensures that the capacitors with the energy reserve of the system are completely discharged. This prevents inadvertent triggering of airbags or seatbelt tensioners.

Checking components of the crash safety module 

NB: Do not test components of the safety system with multimeters or other universal test devices. 

Testing with a multimeter or other universal test tools can lead to accidental deployment and injuries. For system diagnosis, use only the BMW diagnosis system.

NB: Do not connect any electrical test devices to the wiring harness of the crash safety module. 

Do not connect any electrical test devices to the wiring harness of the crash safety module as long as the wiring harness is connected to a component of the safety system. Accidental activation and injury can occur. For system diagnosis, use only the BMW diagnosis system.

NB: Check the ACSM safety system after repairing damage caused by an accident. 

If damage is repaired after an accident, the safety system ACSM must be tested using the BMW diagnosis system (even if the restraint system was not triggered in the accident).

Fitting approved seat covers 

NB: only fit approved seat covers. 

Do not fit seat covers, cushions or other objects on the front seats that have not been specially approved for seats with integrated side airbags. Do not hang articles of clothing, e.g. jackets, over the front seat backrests. This severely impairs or disables the airbag function.