There are several signs your car will give you when the transmission is struggling to work. One is a feeling that the gears are slipping. Another sign is vibration, which is similar to gears slipping, but vibrates most of the car as it tries to shift. If it does not go at first when you push on the gas, but then engages, that could be a sign something is wrong with the transmission. It is also a good idea to look for leaks, Often a transmission that is having trouble will leak.
There are several options available when it comes to transmission repair on your Volkswagen. A fluid exchange or flush can solve problems if they are minor. An exchange simply drains fluid and puts new fluid in. A flush goes a step further and makes sure all the old fluid is taken out of your car before the new fluid is put in. Here are some replacement options: