Battery Interrupt Igniter, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2017 Audi S5, 2017 Audi A5 Quattro, 2016 Audi S5, 2016 Audi A5 Quattro, and 2015 Audi S5. 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 SAFETY PRECAUTIONS .
Follow all regulations when disposing of pyrotechnic components. Refer to AIRBAG, BELT TENSIONER AND BATTERY CUT-OUT UNITS, STORING, TRANSPORTING AND DISPOSING (PYROTECHNIC COMPONENTS) .

NOTE:

If the Airbag Indicator Lamp -K75- comes on after a vehicle accident, check whether crash data is stored using the 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, the 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.

-- Switch the ignition on.

-- Disconnect the battery ground cable with the ignition turned on. Refer to BATTERY .

-- Remove the tool kit mount.

Fig 1: Identifying Battery Interrupt Igniter Components

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-- Remove the nuts -2 and 3-.

-- Unlock the spring -3-.

Fig 2: Fuse Box Cover, Removal

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

NOTE:

Ignore -1-.

Fig 3: Identifying Battery Interrupt Igniter Components

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

WARNING:

Before handling pyrotechnic components (for example, disconnecting the connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.

-- Remove the battery interrupt igniter -4-.

-- To do this, release the connector lock -5- and remove the connector -1-.