2001 Audi A6 Avant QuattroFACTORY OEM SERVICE PROCEDURE

Control module versions

CONTROL MODULE VERSIONS

System designation Pr. No.(1) Control module Part No. Index Coding Signals transmitted via Can-Bus terminal resistance
A6 Front Wheel Drive 1AT 4B0 907 389 - Not codable CAN-Bus  
A6 Front Wheel Drive 1AT 8D0 907 389 - Can be coded CAN-Bus 120 ohm
A6 All Wheel Drive 1AT 8D0 907 389 A Can be coded CAN-Bus 120 ohm
A6 Front Wheel Drive 1AT 8D0 907 389 D Can be coded CAN-Bus 2600 ohm
A6 All Wheel Drive 1AT 8D0 907 389 E Can be coded CAN-Bus 2600 ohm
S6 All Wheel Drive 1AT 8D0 907 389 F Can be coded CAN-Bus 2600 ohm
Allroad All Wheel Drive 1AT 4Z7 907 389 Can be coded CAN-Bus 2600 ohm  
(1) This is the production number which is allocated to all alternative equipment versions. The production number also appears on the vehicle data sticker, which is inside the spare wheel well.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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