2002 Volkswagen Jetta - Do I need a fuse?

jetta
fuses

#1

My left taillight burns out frequently in my 2002 Jetta GL.



I don’t know much about cars, and hate fooling with them; plust, I hardly ever drive, so having to fix anything is a nuisance.



Anyway, my guess is I need a fuse. The question is, are these easy to change in this car? How do I know which fuse is the right one to change? Thanks,


#2

A bad fuse won’t cause the bulb to burn out. Usually, too-high voltage from the alternator (not likely here if this is the only bulb burning out), excess vibration, or crummy quality bulbs would be the culprit.


#3

Vibration, moisture or corroded contacts, but not a fuse will cause this. It is also possible that you have the wrong type of replacement lamp.


#4

Thanks to both of you. So, if I have the wrong replacement lamp, is it possible that it would work for a while, and then burn out? Because, it does work when I first replace it.

Thanks


#5

Unless you are putting in 6V bulbs, that’s not it either.

As a start, ensure the socket is clean (dielectric grease is okay; in fact, it’s beneficial) and the wiring connections and ground are clean and tight.

Another thought: Is there any possibility that water is leaking into the taillight and hitting the hot bulb? What do the burned-out bulbs look like?