General Repair Information
The highest level of caution and cleanliness along with the correct tools are essential to ensure a satisfactory and successful transmission repair. The usual basic safety precautions also apply when carrying out vehicle repairs.
General information that applies to various different repair procedures is listed here instead of repeating it multiple times throughout the article. They apply to this repair information.
Tools
A list of special tools and workshop equipment used in the repair information can be found at the beginning of each repair article and in the "Special Tools and Workshop Equipment" folder.
With smaller screws with smaller tightening specifications, uncertainties often exist. For these bolts the Torque Wrench 1783 - 2-10Nm: VAG1783 can be used.
Transmission
- Do not run the engine and do not tow the vehicle if the ATF pan is removed or if there is no transmission fluid inside the transmission.
- Thoroughly clean the connection points and the area around them first, and then loosen them.
- When installing the transmission, make sure the alignment sleeves are seated correctly between the engine and the transmission.
- Place the removed parts on a clean surface and cover them so that they do not become dirty. Use foils and paper. Only use lint-free cloths.
- Only install clean parts: remove the replacement parts from their packaging just before installing them.
- Carefully cover or seal opened components if repairs are not performed immediately.
- With the transmission removed, secure the torque converter so that it cannot fall out.
- After installing, check the ATF level and fill. Refer to ATF .
- Capacities. Refer to 2020 VEHICLE FLUID CAPACITIES or 2021 VEHICLE FLUID CAPACITIES .
Guided Fault Finding, OBD and Test Instruments
Before beginning any repair work on the automatic transmission, determine the cause of the damage using "Guided Fault Finding" .
Perform Guided Fault Finding . Refer to Vehicle Diagnostic Tester Guided Fault Finding .