Audi A6 (4G) Steering Wheel Electronics

From Ross-Tech Wiki


The following coding options are an overview of the configuration options. Due to different control modules and equipment in the car the actual choices may differ for the specific model you are working on and the Long Coding Assistant present the right choices for you. When replacing this control module it is advised to use the original Long Coding from the original Auto-Scan to code the new one.

  • Rear Wiper (Avant/Wagon) installed
  • Board Computer (Driver Information System/DIS) installed
  • Cruise Control System (CCS) installed
  • Adaptive Cruise Control (ACC) installed
  • Multi-Function Steering Wheel (MFL) installed
  • Tiptronic installed (ONLY with Multi-Function Steering Wheel)
  • Lane Assistant (Vibration Motor) installed

Security Access

  • 40168 = Basic Setting Enabling

Basic Setting

Steering Angle Sensor (G85) Calibration

[16 - Steering Wheel]

Turn steering wheel at least 30 ° left or right and back straight ahead (Tolerance: ±1.5 °).

[Security Access - 16]
Enter 40168
[Do It!]

[Basic Settings - 04]
Group 001
Activate the Basic Setting.
After a successful basic setting, field 3 should say "OK".
[Done, Go Back]

[Meas. Blocks - 08]
Group 033 Field 3 (Steering Angle Sensor -G85-)
Specification: 0.0 °
Tolerance (when straight): ±1.5 °
[Done, Go Back]

After the Steering Angle Sensor (G85) Calibration is completed, the 44-Steering Assist (J500) module may have DTC C10AC - Steering End Stops Not Learned stored. The steering limit end stops need to be adapted as follows:

  • Start the engine and turn the steering to full right lock and hold it for 5 to 10 seconds. The vehicle should produce an audible beep
  • Turn the steering to the complete left lock and the same audible beep should sound.
  • Straighten the wheels and wait 5 to 10 seconds while observing the steering and traction control warnings. They should extinguish although it is advised to scan the vehicle again for DTCs prior to the test drive.

Special Notes

  • To confirm the status of the G85 calibration see MVB group 032.
  • If the basic setting group results in an error message verify the live G85 reading is ±1.5 °. Readings such as 359° would indicate the slip ring is mechanically out one full turn.
  • The slip ring is the 16-Steering Wheel Electronics module. If the vehicle deployed Airbag(s) and the slip ring was replaced make sure the module is long coded using VCDS.

Internal Ref: TSD?ID=46690 and ST?ID=67057