S6 Quattro Sedan V10-5.2L (BXA) (2007)
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Release clips - arrows - and open cover - 1 - over Battery Interrupt Igniter.
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Remove nuts - 1 - and - 3 - as well as bolts - 4 - from plus cables.
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Remove Battery Interrupt Igniter N253 - item 2 - from retainer.
CAUTION: Before disconnecting electrical connection, technician must discharge electrostatic energy. To do this, briefly touch door
lock, for example.
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Disconnect electrical connector - 5 -.
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Push connector lock - 1 - to stop - arrow - ; this disconnects electrical connection - 2 - and it can be removed.
NOTE: Observe disposal of pyrotechnic airbag units
Installing
CAUTION: Battery Interrupt Igniters - N253 are pyrotechnic components. The same safety measures apply as with airbags. Observe safety
precautions for work on airbags.
Installation is reverse of removal, but note the following:
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Adhere to specified tightening torque.
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When connecting electrical connector, ensure it engages securely and locking mechanism is OK.
CAUTION: No one should be in vehicle when connecting battery.
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Follow measures after connecting battery.
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Finally, check DTC memory for airbag control module using and process if necessary.
Tightening torques
Component
Nm
Plus cable on Battery Switch-Off Relay
20
Electrical cable on plus cable
4