Safety Circuit Breaker: Service and Repair

Battery Interrupt Igniter (N253)

Special tools, testers and auxiliary items required

• Torque Wrench (V.A.G 1331)


• Observe safety measures when working on Battery Interrupt Igniter. Refer to => [ Battery Interrupt Igniter (N253) Usage and Safety Information ] Battery Interrupt Igniter (N253) Usage and Safety Information.

• Observe notes for disposal of Battery Interrupt Igniter. Refer to => [ Battery Interrupt Igniter (N253), Disposal ] Description and Operation.

Removal

- Turn off the ignition and all electrical consumers.

- Disconnect the battery. Refer to => [ Disconnecting and Connecting Batteries In Luggage Compartment ] Disconnecting and Connecting Batteries In Luggage Compartment.

- Open locks of main fuse box - 1 - by rotating 90° counterclockwise and fold open cover downward.






- Remove collar nut - 1 - (15 Nm) and remove B+ wire - 2 - from connection thread.






- Remove self-locking nut - 4 - and remove Battery Interrupt Igniter - 3 - from connector threads while being careful of connected lines.

- Disengage harness connector - 1 - by pulling locking button - 3 - in - direction of arrow -.






- Remove connector - 1 - in - direction of arrow - and remove Battery Interrupt Igniter - 2 - from vehicle.

Installation

Install in reverse order of removal, noting the following:

• When installing connector on Battery Interrupt Igniter, ensure connector retainer engages audibly.

- Tighten all threaded connections to specified torque. Refer to => [ Main Fuse Box Tightening Specifications ] Main Fuse Box Tightening Specifications.

- Connect battery. Refer to => [ Disconnecting and Connecting Batteries In Luggage Compartment ] Disconnecting and Connecting Batteries In Luggage Compartment.