One headlight out

No coincidence, you should fix the leak or replace the headlight enclosure. That moisture probably caused damage to the ballast or corrosion in the connections.

 

I'd be inclined to use a clear superglue type of cement instead of silicone caulk because the silicone will emit fumes into the headlight enclosure for an extended period. Something like:


Super Glue Easy Squeeze Gel, .14 oz, Super Glue Liquid - Office Supply King

 

I would use something like the oem sealant:

Amazon.com: Dicor (BT-1834-1) 1/8" x 3/4" x 30' Butyl Seal Tape: Automotive

SCH-I535

 

Hi Patrick

In case you still receive this thread: is the ballast in the enclosure on headlight assembly attached by 4 screws?

There's a DANGER label on this piece warning of "Shock, Burn" etc. Is it safe to remove to check for leak and water damage?

Also, the Super Glue you recommended in Post #4 is a permanent "sealant", correct? I'm not sure if/why I may want to open the headlight assembly in the future??? But just in case, can I use a lithium based sealant instead?

Thanks.

 

I haven't had a problem with the headlight ballast in my 2004 so I don't have personal experience with this. According to the exploded parts diagram in my repair manual, the four screws hold an access plate. Then it looks like there is a gasket for that plate and then two screws hold the ballast unit to the headlight housing.

Yes, the warning label shows that you have HID headlights. I assume that the car will be IG-OFF, the headlight switch will be off, and you will remove the wiring harness connector to the headlight assembly before taking anything apart. If my assumption is correct then you have nothing to worry about with regards to high voltage.

I don't have experience with the sealant that you mentioned.

 

The assembly is removed and many yards from the car
Just wanted to make sure there's no residual charge under that DANGER plate!!!

Thanks again : )