Tail light problem...

I thought I had a tail light bulb out on the passenger side of my smart. I went to the evilution website to see how to replace it. The directions explained how to remove the plate that holds "3" bulbs. I followed the directions and removed the plate and only found "2" bulbs. I thought one bulb had come loose and fell into the light fixture, but I couldn't find a loose bulb.

I then removed the plate on the driver's side and found the same thing... only "2" bulbs. At this point I'm guessing they used the same bulb holder as was in the 450 which did have 3 bulbs.



I'm still trying to figure out why my passenger tail light is darker than the one on the driver's side. It almost looks like a small part of the tail light that would reflect light from the bulb is missing at the bottom of the tail light; there's an open space on the bottom of the light. Has anyone noticed a difference in their tail lights? You have to get very close to the tail light to notice this as the bulb is working fine but the top half of the tail light is brighter than the bottom half.



Looking forward to hearing back from some who may have figured this one out already.