Replace headlight bulb on 2008 elantra

Open the hood, and see it from the corner, is easy to replace.

I had the same issue with the cheaper bulbs. Sylvania sent me some higher end bulbs and have had no issue for years. (I hope that saying that will not bring on a burn-out;)

If you are talking about the headlight casing, where the clear headlight casing connects to your back headlight casing, that isn't the way to change the light bulb, you're going to damage the seals that protect water, and humidity.
Here's a good site to visit http://wiki.answers.com/Q/How_do_you_replace_headlight_bulbs_in_Chevy_Aveo

1. Remove headlight mounting bolts and nut
2. Remove assembly
3. Install headlight assembly (with new bulb)
4. Replace/tighten headlight mounting bolts and nut

1. 
   

Open the hood, above each headlight is 2 rods, unlatch the rods and lift striaght up, the headlight will now lift out and you can replace the bulb, It turns about 1/3 of a turn left to unlatch the bulb. After the bulb is replaced, set headlight back in place and push the rods back down, you may need to wiggle the light housing to align the holes so the rods seat all the way down.

1. Disconnect the negative (-) battery terminal. 2. Remove the front side cover screw. 3. Remove the front fog lamp assembly connector (A).

4. Remove the front fog lamp bulb (A).

Your 2008 Elantra fog lamps are probably still under warranty. Take the vehicle into a Hyundai Service Center (dealership) or call the nearest one. Give them your vehicle VIN and ask them if the fog lamps are still under warranty. If they are, they will replace them for FREE!

yes , you need to remove the headlight cover from the back after u move the bulb conector then there is a holder for the bulb u need to push down then move.
i hope it help ,,,, thanx

Simple to do.

part # 9003ST...back of headlamp bucket..undo connector then twist out bulb assembly...do not touch glass on replacement bulb as your hands oils will cook the new bulb