Automatic transmissions often require specific procedures after component replacement or maintenance. This article provides guidance on using VCDS (Vag-Com Diagnostic System) to perform basic settings and check Automatic Transmission Fluid (ATF) temperature in Volkswagen and Audi vehicles equipped with automatic transmissions. This information pertains to the security access code often required for these procedures, ensuring proper functionality after repairs.
Accessing Basic Settings with VCDS
Basic settings procedures in automatic transmissions are crucial after events like engine or transmission control module (TCM) replacement, throttle body adjustments, or throttle position sensor (TPS) changes. These procedures ensure the transmission adapts to new components and operates correctly. Before beginning, ensure no fault codes exist in the Auto Trans module.
General Procedure
With the ignition on and the engine off, avoid touching the accelerator pedal. In VCDS, navigate to:
[Select] > [02 – Auto Trans] > [Basic Settings – 04]
Set Group to “000”.
[Go!] – Fully depress the accelerator pedal for 3 seconds.
[Done, Go Back] – Release the accelerator pedal.
Typically, no on-screen confirmation indicates successful completion. The transmission controller doesn’t provide direct feedback. For 09G transmissions, Group 001 is used, and the accelerator pedal remains untouched. This procedure often requires a specific security access code, which can vary depending on the vehicle and transmission model.
Alternative Procedure for Newer Audis
In some newer Audi models, Group 000 might be unavailable in the Auto Trans module. If so, use the following procedure:
With the ignition on and the engine off, avoid touching the accelerator pedal.
[Select] > [01 – Engine] > [Basic Settings – 04]
Set Group to “063”.
[Go!] – Fully depress the accelerator pedal for 3 seconds.
[Done, Go Back] – Release the accelerator pedal. This method might also require a security access code for successful execution. Consult your vehicle’s specific documentation or online resources like the Ross-Tech Wiki for the correct code.
Checking ATF Temperature with VCDS
Maintaining the correct ATF temperature is vital for accurate fluid level checks. Consult your factory repair manual for the specified temperature range for your vehicle. Using VCDS, you can monitor the ATF temperature:
[Select] > [02 – Auto Trans] > [Meas. Blocks – 08]
Set Group to “005”. (This may be Group 002 or 004 in certain vehicles. Refer to your repair manual for confirmation.)
[Go!] – Field 1 displays the ATF temperature in degrees Celsius.
Conclusion
Performing basic settings and monitoring ATF temperature are essential for maintaining automatic transmission health. Using VCDS and the correct security access code allows for precise execution of these procedures. Always consult your factory repair manual for vehicle-specific instructions and temperature ranges. Remember to check the Ross-Tech Wiki for potential vehicle and transmission-specific requirements regarding security access codes and procedural variations. Accessing and utilizing the proper VCDS security access code ensures accurate execution of these tasks, contributing to the overall health and longevity of your automatic transmission.
