I've included a link to an auto repair video below that will show you exactly how to replace the taillight in your Volkswagon Passat. See sources and related links below for bulb information.
2 plastic pieces inside the trunk where the taillights are, they should just pop off
You would need to take off the door panel in order to remove it. I've included an auto repair video in "related links" down below that will show you exactly what needs to be done to replace it on your 2000 Volkswagen Passat. Hope this helps you out.
how do you reset the passenger side airbag on a 2000 passat?
How do I replace a turbo in 2003 vw passat
Yes and if the belt breaks it will damage your engine.
To replace the taillights on a 2001 Nissan front first prop the hatch open. Locate the rear lights plastic housing and remove them to find the bulbs. Replace the bulbs.
Replace the seal.
http://www.tobio.info/passat/howtos/passat_air_filter.html
Your dashboard lights suddenly not working is almost always your indication that your taillights are out. If the fuse for your taillights is blown and you replace it, your dash lights should be fine.
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How do you replace the side mirror turn signal bulb on a 2008 Passat?
http://www.fishh2o.com/Misc/Misc/Passat%20Radiator.html