you need to drop the transmisison oil pan,
metal pan is the oil pan on 2003 Volkswagen Passat.
it takes 5 lit.
Location of oil pressure switch 2003 VW passat
6.5
I found using the Mobil-One 0w30 synthetic oil to have the best results. It's not cheap but it works for me.
Remove transmission oil pan
You can't change the transmission fluid on any volkswagon Passat no matter what the year. I have a 2004 volkswagen passat and my friend accidently let the transmission fluid out instead of the oil , and I had to spend 311 dollars to get it all replaced. The volkswagon car dealership out here, where I live, said that they are the only ones who can change the transmission fluid on this particular model vehicle. Sorry, about that
The recommended oil for a 2003 Volkswagen Passat with a 2.8L engine is 5w30. This is well suited for most driving conditions.
The transmission fluid is not meant to ever need servicing unless the transmission pan has to be removed to repair the transmission. there are special tools involved that are a pain to use.
You have to remove the transmission oil pan to access the filter.
Remove transmission oil pan to access fluid and filter
Drop lower transmission pan Oil will run out Change filter and gasket