Headlamp bulb replacement. Driver side head lamp is out. Bought new bulbs. Owners manual says to contact dealership for replacement. How do I replace the bulb myself? 2007 Mazda6

Seems like if your other low beam is lit, there's something wrong with the new bulb. Make sure it's the exact type needed, and switch the working bulb from the pass. side to drivers side to check.

If you just need to change the headlamp bulb, your owners manual has that info. If you don't have an owners manual go to my.gm.com

Type in year--make--model, hit go, click on owners manual/guide, click on pdf file.

If you want to remove headlamp assembly, let me know and I'll post the procedure. I wasn't sure if you just needed to remove bulb or the whole lamp assembly? Don't touch the new bulb with bare hands/fingers, use gloves.

Interesting question. Bulbs do burn out, but premature failure is often caused by overvoltage from the alternator. Have your dealer check the alternator for correct voltage AND waveforms. You can check it yourself with a multimeter. If the battery voltage is more than about 14.5Vdc, eg 15+, the alternator has to be replaced.

Does seem odd,never heard of Subaru having that odd habit.
I would have thought your dealer would have checked but if not have them or someone check the charging system output.

Generally, it is better to replace both at the same time, simply because the possibility of the other one following after. BUT $150.00? wow, that is not something that would void your warranty if you replace it yourself. The bulbs are as cheap as $7.00 at your local parts store. Save yourself $130.00 and replace them yourself. ^^ Good luck and hope this helps. P.S. If you are talking about the entire headlight assembly, then $150.00 is more than fare.

Replacing headlamp bulbs
Handle a halogen headlamp bulb carefully
and keep out of children’s reach. Grasp the
bulb only by its plastic base and do not touch the
glass. The oil from your hand could cause the bulb
to break the next time the headlamps are
operated.
If the bulb is accidentally touched, it should be
cleaned with rubbing alcohol before being used.
To remove the headlamp bulb:
1. Make sure headlamp switch is in OFF position,
then open the hood. If you are replacing the driver
side headlamp, unclip the electronic module on the
right side of the battery and move it out of the way.
2. Locate the headlamp bulb through the hole in the
upper radiator support assembly.
3. Release clip and
disconnect the
electrical connector
from the bulb.
4. Remove the bulb
retaining ring by
rotating it
counterclockwise
(when viewed from the
rear) about 1/8 turn to
free it from the bulb socket, and slide the ring off
the plastic base. Keep the ring to retain the new
bulb.
5. With out turning, remove the old bulb from the
lamp assembly by gently pulling it straight out of the
lamp assembly.

To install the new bulb:
1. With the flat side of
the bulb’s plastic base
facing upward, insert
the glass end of the
bulb into the lamp
assembly. You may
need to turn the bulb left or right to align the
grooves in the plastic base with the tabs in the lamp
assembly. When the grooves are aligned, push the
bulb into the lamp assembly until the plastic base
contacts the rear of the lamp assembly.
2. Install the bulb retaining ring over the plastic base
until it contacts the rear of the socket by rotating
clockwise until you feel a “stop.”
3. Install the electrical connector into the rear of the
plastic base until it snaps, locking it into position.
4. Turn the headlamps on and make sure they work
properly. If the headlamp was correctly aligned
before you changed the bulb, you should not need to
align it again.

You either have a bad ground or the bad electrical connection at the light socket is "simulating" a bad ground. This is putting a high resistance on the bulb and it's taking it's toll by burning out the bulb. I would start with a new socket, and CHECK the ground. If you still have the issue, I would run another complete ground wire and not even worry about checking the ground itself. the Stick

1. Make sure headlamp is off and open hood.
2. Taurus model years 1990-1999: you must remove the whole headlamp to replace the bulb. Not a horrible task. Just annoying.
3. Facing the driver's side headlamp, and looking at the headlamp itself, at clock positions 8, 11 and 1 are the headlight housing screws. They all look the same. Using a 10mm socket wrench, remove these 3 screws and set them aside.
4. Just to the right of the "11 o'clock" housing screw is a bolt (same hexagonal 10mm sized top as the housing screws). This just needs a few turns to loosen it.
5. Gently pull the whole headlight forward. Now you can get at the bulb.
6. Disconnect the electrical connector from the bulb. Now the headlamp is free to work with. Remove the bulb, replace with a new bulb, make sure the bulb housing cylinder is in place and reconnect the electical.
7. Place headlamp back into position. Line up screw holes. Tighten the bolt. Replace housing screws and tighten.
8. Passenger side headlamp is mirror image of driver's side. Screws at 11, 1 and 4 o'clock positions. Bolt should be to the left of the "1 o'clock" housing screw.

Remove the head lamp and disconnect the head lamp connector. Remove three 10mm bolts Unscrew the headlamp bulb CAPS to access bulbs.

The headlamp is a semi-sealed beam type which uses a replaceable halogen bulb. The bulb can be replaced from the engine compartment side without removing the headlamp body.

• Grasp only the plastic base when handling the bulb. Never touch the glass envelope.

1. Turn the bulb retaining ring counterclockwise until it is free from the headlamp reflector, and then remove it.
2. Disconnect the harness connector from the back side of the bulb.
3. Remove the headlamp bulb. Do not shake or rotate the bulb when removing it.
4. Install in the reverse order of removal.