Battery Interrupt Igniter, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Follow all Safety Precautions when working with pyrotechnic components. Refer to PYROTECHNIC COMPONENTS SAFETY PRECAUTIONS .
Follow all regulations when disposing of pyrotechnic components. Refer to AIRBAG, BELT TENSIONER AND BATTERY CUT-OUT UNITS, STORING, TRANSPORTING AND DISPOSING .

NOTE:

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 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.

-- Disconnect the battery ground cable with the ignition turned on. Refer to BATTERY, DISCONNECTING AND CONNECTING .

Fig 1: Identifying Battery Interrupt Igniter

Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -2- and -3-.

-- Release the retaining spring -3-.

Fig 2: Identifying Fuse Box Cover, Removal

Courtesy of AUDI OF AMERICA, LLC

-- Lift the lid -2- over the Fuse Panel A -SA- slightly upward -arrow- and at the same time remove the battery interrupt igniter.

NOTE:

Ignore -item 1-.

Fig 3: Identifying Battery Interrupt Igniter

Courtesy of AUDI OF AMERICA, LLC

WARNING:

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-.