The rear series of lights on the back of the car. I'm not including the sidemarker lights.

1st, there are the indicator lights on the sides of the cars.
2nd, there are some kind of reflector lights shining through the white portion of the taillight lens.
3rd, there are the stoplights,
4th, there are the back-up lights?

Do the stop lights double as taillights? Because, when I turn my car's lights on, the only lights lighting up in the back are the second ones from the outside--the reflector lights. Are these supposed to suffice for taillights or do I have some bulbs out? I circled the only light in the back that are coming on when I have the lights turned on. See picture. Any help would be appreciated.

Okay, this should be the pic with the cirlce on it.

God d&&& it all, i hate this manage attachment s***. The only light, as you can see from the above picture (although it's not very dark outside) --the only light operating now is the second one from the left.

i think there is a short circuit, 2nd one should be the foglight...

that's what i thought--i don't have fog lights on my car though.

Also, the eight bulbs in the back are brand new and functioning. And I have no blown fuses--i double checked.

but it comes by stock. found the pic on the forum...
tinypic.com/view.php?pic=35l7shu

a far as I know you only have one tail light per side, one brake light that is not also a taillight and on euro models the rear fog light which makes it look like 2 taillights in back per side.

you have a brake light out. when you turn your lights on, the one you see lighting up is correct. the only other light that comes on will be the brake light, when you press it, and that is the biggest light, second in from the right. next to the clear portion)

if you take the lens out the empty spot is for the euro fog light which is not an option on us spec cars.

This pic might help:

http://forums.bimmerforums.com/forum///attachment.php?attachmentid=55748

thanks, matt. The car was in park when I took the picture. The brake lights work. Thanks for the diagram picture.