NewFan

rear fog light? mine only a bulb is on...

JeffOWU

If your unsure what the foglight is supposed to be/do, it's pretty simple, both in form and function. All the feature is, is an additional bulb in one of the taillamp assemblies. It "burns" brighter than any other lamp on the rear end for the purpose of making the car stand out more in bad weather. If its foggy, snowy, really rainy, the foglight gives a driver behind you a better opportunity to see your car before it's too late. BUT, don't use it unless visiblity is quite poor. Could get you a ticket/pulled over for a taillamp malufunction. Plus, it's just poor Audi ettiqute

NewFan

my rear fog light on only at the left side of the car but not the right rear fog light.

mj42jackson

that's normal.

cr8n

If you had a rear fog light on both sides, it would look like your brake lights

A4BlueJean

BTW fog lights for fog or blowing snow-white out conditions

Im Outy

According to US DOT, you can only have 1 rear fog to diffentiate from brake lights. European models have it on both sides. I used to have it on both sides in my 99 with an aftermaket tail light assembly. I'm sure they will come out with someting for the '02 if they haven't already.

NewFan

oh, i thought the rear fog lights are on the both sides,coz it looks funny with only 1