How do you check transmission fluid in a 2004 Jetta tdi?

To check the Transmission Fluid in a 2004 Jetta TDI, first ensure the vehicle is on a level surface and the engine is warm. Locate the transmission fluid dipstick, typically found near the back of the engine bay; remove it, wipe it clean, and reinsert it. After pulling it out again, check the fluid level on the dipstick; it should be within the marked range. If necessary, add the appropriate type of transmission fluid through the dipstick tube using a funnel.