I just changed one in my wifes wagon yesterday. Open the access panel (start with the passenger side, it's easier to see what you're doing, even if the pass side is OK, it'll give you a better view than the drivers side)
You'll see 2 plastic clips on the outside edge of the back of the lens. Release those and swing the plastic plate back, sliding the 2 tabs on the inboard side out of their slots. Sort of like the battery compartment door on your remote controls for tv's and such. With a little wiggling and carefull manoevering you can swing this plate around exposing the bulbs.
The drivers side is a little tougher because of the mounting box for the CD player, but it can be done!
The brake light bulb lamp part number will depend on if you have a 2002 volkswagen jetta wagon or sedan. See sources and related links below for more information.
1157 or 1077.
See sources and related links below for 2000 VW Volkswagen Jetta light bulb lamp part numbers.
you have to open the trunk and behind the carpet you have to pull off, and then unscrew the bolt and push in the sides to open and then you will see a light bulb and then replace it.
This indicates the front brake pads are worn.
brake light flashing on 2002 jetta tdi
see link
its like changing a light bulb and depends on the car model 2007 volkswagen beetle
The price for a brake light for the 2005 VW Jetta wagon varies by retailer. As of 2014 this part range from 35.00 to 50.00.
most likely the alternator is bad.
Its under the motor
I made a video on how to change the head lights in my jetta This is for a 2006 jetta tdi, but other years apply http://www.truezombielife.com/2006-jetta-head-light-replacement/