ATF Flush

ATF Flush

Special tools, testers and auxiliary items required

• Vehicle Diagnosis, Testing and Information System (VAS 5051B) with Diagnostic Cable

• ATF Filler System F/CVT Gearbox (VAS 5162)

• Triple Square Socket Driver (3357)

• Oil Collecting and Extracting Device (V.A.G 1782)

• Protective eye-wear

Procedure

• Transmission installed.

With normal ATF change, only about 55 to 60% of total ATF in transmission is replaced.

The ATF flush is necessary when old ATF in the transmission must be removed completely.

The ATF must always be flushed for the following work:

• Replacing the input shaft

• Maintenance work on the input shaft

As described in the following, the test run must be executed twice and then the respective ATF must be changed.

This is the only way the ATF in the transmission can be completely changed.


If all these steps are not followed completely, transmission components will be damaged.

- After installing the transmission. Refer to => [ ATF, Filling for ATF Flush ] ATF, Filling for ATF Flush.


• After installing transmission with new disc pack or input shaft, the Vehicle Diagnosis, Testing and Information System (VAS 5051B) must check before first drive whether or not update programming in transmission control module (J217) must be carried out.

• If an update programming is needed, but not executed, transmission components will be damaged.

• If no update programming is needed, but one is executed anyway, transmission components will be damaged.

Check whether update programming in transmission control module (J217) must be performed:

• The vehicle diagnosis, testing, and information system (VAS 5051B) is connected.

- Vehicle-specific access to (VAS 5051B) in the Guided Functions.

- Perform a vehicle selection.

- Make the following selection in the functions:






• Through this process in vehicle diagnosis, testing, and information system (VAS 5051B) update programming is only carried out for the transmission control module performed if this is required.

- If necessary, carry out update programming in the transmission control module.

Flush ATF:


If all steps are not carried out in correct order or followed exactly, transmission components will be damaged.

- Refer to => [ Input Shaft Adjustment, Air Gap, Checking ] Input Shaft Adjustment, Air Gap, Checking

- First test run pass through, refer to => [ ATF Flush, Testing ] ATF Flush, Testing.

- Second test run pass through, refer to => [ ATF Flush, Testing ] ATF Flush, Testing.

- Check the ATF level.

• Observe all notes and test requirements for checking ATF level and filling.

The flush process is complete after the ATF level has been checked and adjusted.