Audi Q7 Owners & Service Manuals

Audi Q7: Battery Interrupt Igniter

Audi Q7 (4M) 2016-2025 Workshop Manual / Body / Body  Interior / Passenger Protection, Airbags, Seat Belts / Battery Interrupt Igniter

Overview - Battery Interrupt Igniter

Overview - Battery Interrupt Igniter

1 - Connector

  • For the Battery Interrupt Igniter -N253-

2 - Nuts

  • Tightening specification. Refer to → Electrical Equipment; Rep. Gr.97; Relay Panels, Fuse Panels and E-Boxes; Component Location Overview - Relay Panels, Fuse Panels and E-Boxes.

3 - Battery Interrupt Igniter -N253-

  • Available only together with -4-

4 - Fuse Panel A -SA-

  • Removing and installing. Refer to → Electrical Equipment; Rep. Gr.97; Relay Panels, Fuse Panels and E-Boxes; Component Location Overview - Relay Panels, Fuse Panels and E-Boxes.

5 - Cover

  • For Fuse Panel A -SA-

6 - Positive Terminal Clamp

  • Tightening specification. Refer to → Electrical Equipment; Rep. Gr.27; Battery; Overview - Battery.

Battery Interrupt Igniter, Removing and Installing

  WARNING

  • Follow all safety precautions when working on pyrotechnic components. Refer to → Chapter "Safety Precautions for Pyrotechnic Components".
  • Follow all regulations when disposing of pyrotechnic components. Refer to → Chapter "Airbag, Belt Tensioner and Battery Cut-Out Units, Storing, Transporting and Disposing (Pyrotechnic Components)".

  Note

  • If the Airbag Indicator Lamp -K75- turns 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 Diagnostic Trouble Code (DTC) memory. If this is the case, Battery Interrupt Igniter -N253- must be replaced.
  • The Battery Interrupt Igniter -N253- interrupts the electrical circuit each time an airbag is deployed. The Battery Interrupt Igniter -N253- must be replaced after a deployment.
  • The Battery Interrupt Igniter -N253- is available as a replacement part only together with Fuse Panel A -SA-.
  • Fuse Panel A - SA-, Removing and installing. Refer to → Electrical Equipment; Rep. Gr.97; Relay Panels, Fuse Panels and E-Boxes; Component Location Overview - Relay Panels, Fuse Panels and E-Boxes.

    READ NEXT:

     Driver Side Airbag

    Overview - Driver Side Airbag 1 - Wiring Harness For Driver Airbag Igniter -N95- and Driver Airbag Release Valve Igniter -N490- Replacing. Refer to → Chapter "Airbag Connector,

     Front Passenger Airbag

    Overview - Front Passenger Airbag 1 - Connector For Front Passenger Airbag Igniter 2 -N132- 2 - Connector For Front Passenger Airbag Release Valve Igniter -N491- 3 -&n

     Overview - Front Thorax Airbag

    1 - Front Thorax Airbag Driver side: with the Driver Thorax Airbag Igniter -N199- Front passenger side: with Front Passenger Thorax Airbag Igniter -N200-   WARNING Follow all s

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     Fastening and unfastening safety belts

    Fig. 65 Belt buckle and belt latch Fig. 66 Releasing the belt buckle from the belt latch Observe the safety precautions. Fastening the safety belt Pull the safety belt by the belt buckle evenly across your chest and lap. Insert the belt buckle in the belt latch belonging to the seat until i

     Door, Removing and Installing

    Removing - Disconnect the door connector -2- from the B-pillar. Refer to → Electrical Equipment; Rep. Gr.97; Connectors. - Tape off the B-pillar in the door arrester area using adhesive tape, so that the paint will not be damaged. - Remove the bolt -1- for the doo

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