A/T - New Adaptation Procedures For The OBK Transmission
37 Adapting OBK transmissions37 11 30
2027973/1
December 1, 2011.
Affected Vehicles
Condition
New transmission adaptation procedures for the OBK transmission may be confusing.
Technical Background
Clutch adaptations are needed to allow transmission to properly shift the vehicle smoothly. There is now more than one way to adapt the OBK transmission depending on software versions.
Production Solution
Standstill adaptation capability has been added to the TCM software for some models in the 2012 model year.
Service
The procedure used to adapt the 0BK transmission depends upon the software levels and equipment levels of the vehicle. For versions without standstill adaptation an adaptation drive procedure should be performed. This can be found in GFF or Guided Functions >> Powertrain >> 0BK Transmission >> 01 On Board Diagnostic capable system >> 02 Transmission electronics, functions >> 02 - Adaptation Drive.
For vehicles with standstill adaptation capability, below are the steps to follow to complete a standstill adaptation.
A: Vehicle/Transmission Conditions
1. The transmission software must support this function.
2. The ATF temperature must be above 50°C (122°F) and below 95°C (203°F). Measure Value Block: Transmission fluid temperature.
3. Standstill adaptation is performed on a stationary vehicle. Speed = 0 mph.
4. The EPB (Electronic Parking Brake) must be applied.
5. Driver depresses the brake pedal during the entire process. (By slightly releasing the brake, the adaptation process will be aborted - see part C.)
B: Procedure
1. Connect VAS-Tester to diagnostic port.
2. Select Vehicle Self Diagnosis >> On Board Diagnosis >> 02 - Transmission >> 006 Basic Settings.
3. Select Fast Adaption.
4. Select Measured Values.
5. Select: Engine Speed >> Fast Adaption cancellation condition and Transmission Fluid Temperature.
6. Forward arrow 3 times.
7. Set parking brake; hold foot brake and move shifter from position P to D.
8. Start Standstill adaptation by pressing the Start button.
WARNING:
During the adaptation process, the engine speed increases to 1200RPM and it comes with varying degrees of jerks in the drive train. These are normal and intentional. To prevent vehicle from moving, please do not remove foot from brake pedal.
9. At the end of a complete adaptation run (approximately 5 minutes), the engine returns to idle speed, approximately 800 RPM. The process can be restarted or terminated.
Tip: Standstill adaptation can be repeated but the stored values will be cleared each time.
10. At the end of the procedure, return the shifter to position P, then the brake pedal can be released.
C: Disturbance or interruption of the adaptation function
1 If the aforementioned conditions in A: 1-5 are no longer being met, the Standstill Adaptation process will be terminated and the reason for termination will be noted under Values. If this occurs, press the Stop button and once again establish the required conditions.
2. The function can be restarted by pressing the Start button.
3. If the incorrect engine software is present this procedure will not complete and "engine speed too low" message will appear. These vehicles must be adapted using the Adaptive Drive procedure.
Warranty
This TSB is informational only and not applicable to any Audi warranty.
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.