windyC6

Just curious on why the owners man. for my 2006 doesn't suggest.....but almost demands...LOL...that you take your car into the dealer and have them change the HI bulbs. Says it's OK to change high beams....just not the HI's. What can a dealer do that your average home-dummie can't do in reguards to these bulbs ???

talon90

Mainly because they are not conventional bulbs. From the service manual:

Headlamp Bulb Replacement


Caution
The high intensity discharge system produces high voltage and current. To reduce the risk of severe shocks and burns:

Never open the high intensity discharge system ballast or the arc tube assembly starter.
Never probe between the high intensity discharge system ballast output connector and the arc tube assembly.


Caution
The high intensity discharge system produces high voltage and current. In order to reduce the risk of severe shocks and burns, the battery negative cable must be disconnected any time service work is being performed on or around the high intensity discharge system.


Halogen Bulb Caution

Caution
Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

Turn off the lamp switch and allow the bulb to cool before changing the bulb.
Leave the lamp switch OFF until the bulb change is complete.
Always wear eye protection when changing a halogen bulb.
Handle the bulb only by its base. Avoid touching the glass.
Keep dirt and moisture off the bulb.
Properly dispose of the used bulb.
Keep halogen bulbs out of the reach of children.

RLSebring

Not to mention when you drop one or both of the small screws that hold the hid bulb in place, they almost always fall down into the headlight housing.

If the dealer does it then it's on him to find repalcements...

Andy_C

Put a paper in underneath the bulb and you save yourself from headache in case you drop the screws.

(I just replaced mine and found this thread helpful, hence I add to it instead of starting a new one)