Battery Interrupt Igniter, Removing And Installing: Removing
- Follow all Safety Precautions when working with pyrotechnic components. Refer to SAFETY PRECAUTIONS WHEN WORKING WITH PYROTECHNIC COMPONENTS .
- Follow all regulations when disposing of pyrotechnic components. Refer to AIRBAG, BELT TENSIONER AND BATTERY CUT-OUT UNITS, STORING, TRANSPORTING AND DISPOSING (PYROTECHNIC COMPONENTS) .
If Airbag Indicator Lamp -K75- comes on after a vehicle accident, check whether crash data is stored using Vehicle Diagnostic Tester. If this is the case, check if the malfunction >>Resistance too high<< for the Battery Interrupt Igniter -N253- is stored in the Diagnostic Trouble Code (DTC) memory. If this is the case, Battery Interrupt Igniter -N253- must be replaced.
The Battery Interrupt Igniter -N253- interrupts the circuit electrically each time an airbag is deployed. The Battery Interrupt Igniter -N253- must always be replaced after a deployment.
The Battery Interrupt Igniter -N253- is available as a replacement part only together with Fuse Panel A -SA-.
When just replacing the battery interrupt igniter -N253-, remove it from the replacement part and install it in Fuse Panel A -SA- as follows.
-- A6 hybrid: remove the front outlet air guide for the traction battery. .
-- Disconnect the battery Ground (GND) cable with the ignition turned on. Refer to BATTERY .
-- Remove the nuts -2 and 3-.
-- Release the retaining spring -3-.
-- Lift the lid -2- over the Fuse Panel A -SA- slightly upward -arrow- and at the same time remove the battery interrupt igniter.
Ignore item -1-.
Before handling pyrotechnic components (for example, disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.
-- Remove battery interrupt igniter -4-.
-- Press and remove the lock -5- -arrow- and disconnect the connector -1-.