How do you put transmission fluid in a 2004 Passat?
There is a special procedure in changing and adding fluid to your vehicle. The add fluid plug is on the side of the transmission, located under the car. You need the car on a lift, level, up to operating temperature, a pump and the correct fluid to add. If your car does not move in gear, you have a larger issue than low fluid. Is it leaking?..https://www.youtube.com/watch?v=qL9V3fJT6QQ
If it is not or has not been leaking it has other issues.
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