Low Beam headlight not getting power? swiched blubs both worked on passanger side no so on driver side.

SOURCE: burned out headlight/bulb bmw 1991 325i 2dr

It's a bulb replacement. If it's anything similar to my Audi, there is a cover on the back of the headlight housing that you pop off. Then you can reach in, pull the wire connector off the bulb, and unclip a metal retainer over the bulb, and pull the bulb out. Installation of the new one is the reverse. Just be SURE not to touch the glass part of the bulb. Skin oils can cause a halogen bulb to burn very hot and burn out very quickly. If you do touch the glass, wipe it gently but thoroughly on a cotton cloth to clean it off before you install it.

SOURCE: 99 VW Passat. Low beam headlight not working.

you need to change the bulb an your local parts store will show you how

SOURCE: Low beam, driver's side headlight

The low beam bulb needs to be replaced. Go to an autozone store as they will sell you the bulb, and even assist you in their parking lot with installing it.

SOURCE: low beam headlights keep burning out, 8 times on

If you visit many forums for Elantras, you will see that frequent headlamp failure is very common. It has been discussed over and over again and it is thought that always turning the lights off and on via the stalk switch is recommended. If you leave the light switch in the on position, when you start your car, the lights briefly flash on then off again as you turn your ignition to the start position and then turn on again as you release the key to return to the "on" position. This may be causing a power surge which creates stress on the bulb filament and can only be avoided by using the light switch instead of the ignition to power up the headlamps.

SOURCE: The drivers side headlight on my 2002 Saab won't

This is probably a problem with the orange headlight relay under the hood in the relay black box. Take the relay out and clean contacts and put back in. If does not fix, try a new relay or swap with another 9-5 to troubleshoot.