seville sts headlight

illus1on · #1 (**permalink**) 06-21-09, 08:23 PM

Hi guys new to the forums had my cadillac for about a month now the Low beam HID is out on the driver side don't know which K it is for the stock bulb. 2001 cadillac sevile. I read in the book 9006 hb4, and then on the actual headlight assembly of the car it says D1s. I don't know which one it is, and if anyone can explain to me what the 9006 hb4 is and the d1s is? Help is appreciated. by k I mean I see the 4300k 6000k i'm so lost. Thanks to who ever can help me

creeker · #2 (**permalink**) 06-21-09, 08:35 PM

Quote:

Originally Posted by illus1on

Hi guys new to the forums had my cadillac for about a month now the Low beam HID is out on the driver side don't know which K it is for the stock bulb. 2001 cadillac sevile. I read in the book 9006 hb4, and then on the actual headlight assembly of the car it says D1s. I don't know which one it is, and if anyone can explain to me what the 9006 hb4 is and the d1s is? Help is appreciated. by k I mean I see the 4300k 6000k i'm so lost. Thanks to who ever can help me

I found some listings in rockauto.com, under electrical lamp and sockets.

N*Caddy · #3 (**permalink**) 06-21-09, 08:55 PM

If you have HID then is D1S
If you have regular halogen bulbs then you have 9006
As far as K number is concerning I thing is 4700K (but I am not sure). This applies for the HID option.
If your light bulb has filament is 9006, if is coming with ignitor (and has no filament) then is HID.

D1S HID light bulb

9006 Halogen Light Bulb

illus1on · #4 (**permalink**) 06-21-09, 09:22 PM

How can I figure that out without opening everything to see what bulb it is because from the outside all I can see is just a big circle kind of bulb with weird colors on it or looks pretty crazy looking or w.e. From what one of my friends told me it is the HID lighting.

illus1on · #5 (**permalink**) 06-21-09, 09:29 PM

Quote:

Originally Posted by N*Caddy

If you have HID then is D1S
If you have regular halogen bulbs then you have 9006
As far as K number is concerning I thing is 4700K (but I am not sure). This applies for the HID option.
If your light bulb has filament is 9006, if is coming with ignitor (and has no filament) then is HID.

D1S HID light bulb

9006 Halogen Light Bulb

How can I figure that out without opening everything to see what bulb it is because from the outside all I can see is just a big circle kind of bulb with weird colors on it or looks pretty crazy looking or w.e. From what one of my friends told me it is the HID lighting.

That pretty much is all I see on my front end of the car, so I am guessing it is D1s? and those run about 150 for just one?

**Ranger** · #6 (**permalink**) 06-21-09, 09:41 PM

Check the owners manual.

Renew82 · #7 (**permalink**) 06-21-09, 11:10 PM

Based on your information, you have HID lighting. The system uses a D1S bulb and they cost around $130.00 each.

**Playdrv4me** · #8 (**permalink**) 06-22-09, 12:21 AM

You can find those for less on ebay. The color temperature that most manufacturers use (except for maybe Acura) is 4300K. There are tons of D1S and D2S listings on ebay but they are usually sold in pairs.

N*Caddy · #9 (**permalink**) 06-22-09, 06:54 AM

Simple, instead of looking to the front of the head lamp pop up the hood and look to the back of the headlight (where all the wires go in). If you see that metal enclosure (pictured above) you have HID, if is just a plastic connector then you have Halogen. Another way to tell is based on your RPO codes something like T97, TT2 or TT6.

STSS · #10 (**permalink**) 06-22-09, 08:27 AM

D1S is molded into the headlight lens just above the low beam.

submariner409 · #11 (**permalink**) 06-22-09, 10:18 AM

When you get ready to change bulbs in the 2001, remove the radiator sight panel. 6 plastic rivets - pop the centers up and pull the rivet. Slide a towel between the lens assembly and the bumper painted cover - prevents real scratches. At the inner end of the lens assembly are 2 bolts - one long, one short - remove them (leave the T15 Torx alone - those are the aiming screws) and pivot the lens assembly forward about 4". Now, using magic words, work the rear end of the lens out of the pop plug fitting welded to the fender. Unplug the connectors. While you're in there, replace all the bulbs. No sense having to do all this again. Replace both HID's as a pair - they DO age and change light output - change only one and you'll wind up with a car with a wink.

When you put it all back together, use a tiny dab of anti-seize on the pop fitting and mounting bolt tips - makes next time easier - and make sure the rubber surround gasket is located correctly.

illus1on · #12 (**permalink**) 06-22-09, 04:48 PM

Thank you for the help, a little pricey for the bulbs. Also thanks to everyone else that has helped me, I will try and get pictures up of the caddy ASAP

STSS · #13 (**permalink**) 06-22-09, 05:48 PM

You gotta pay to play with the big boys.

N*Caddy · #14 (**permalink**) 06-23-09, 12:40 AM

Actually if you consider over all is cheaper with HID, because you pay $280 (and up) for the 2 HID light bulbs once every 7 years or so. Whereas with halogen you pay $50 (and up) every year for a pair.

Spencer's HIDs · #15 (**permalink**) 07-22-09, 11:00 PM

a pair of my d1s are only $100