Daytime driving lights





I just took out the whole housing (There are posts on how to do this) and put RTV high temp on the crack. Working fine so far... knock on wood


Go in through the brake ducts - not easy with a Z06 or if you have screens
Go in through the bottom by taking out the bottom panel

The one that works for me is:
Turn on the headlights and back off one position to kill the lights.
Unscrew the 3 small screws on the black plastic housing around the headlight. Gently pull the housing clear. Reach down around the headlight unit and release the bulb holder. It comes out by turning the bulb holder a ¼ turn counter clockwise but it has a plastic clip which you need to squeeze to release it. Here’s how the bulb fits into the lamp unit. The DRL bulb is the lower of the two.

Here’s the light socket. This one’s after market but it gives you the idea. You can see the clip you need to squeeze.

Change the bulb. It’s a push fit into the lamp holder. Push it home firmly but don’t handle the glass. Use latex gloves if you have them. Reseat the bulb holder and turn clockwise until it clicks back in place. Put the plastic headlight housing back in place making sure to locate the small plastic tab in the bracket on the headlamp cover. Replace the 3 screws and close the lights.
It’s a 10 minute job. Some guys have had the lights close if they’ve taken a while to do the fix. If you’re worried about that, disconnect the battery once the lights are up.
The bulb is a 4157NA
Some guys with big arms remove the hood adjusting screw for better access. Guys with even bigger arms have had to take off the headlight cover. Four torx screws (2 back, 1 each side). Take the back ones off first with the lamps down. Raise the lights and take the side ones out.
Go in through the brake ducts - not easy with a Z06 or if you have screens
Go in through the bottom by taking out the bottom panel

The one that works for me is:
Turn on the headlights and back off one position to kill the lights.
Unscrew the 3 small screws on the black plastic housing around the headlight. Gently pull the housing clear. Reach down around the headlight unit and release the bulb holder. It comes out by turning the bulb holder a ¼ turn counter clockwise but it has a plastic clip which you need to squeeze to release it. Here’s how the bulb fits into the lamp unit. The DRL bulb is the lower of the two.

Here’s the light socket. This one’s after market but it gives you the idea. You can see the clip you need to squeeze.

Change the bulb. It’s a push fit into the lamp holder. Push it home firmly but don’t handle the glass. Use latex gloves if you have them. Reseat the bulb holder and turn clockwise until it clicks back in place. Put the plastic headlight housing back in place making sure to locate the small plastic tab in the bracket on the headlamp cover. Replace the 3 screws and close the lights.
It’s a 10 minute job. Some guys have had the lights close if they’ve taken a while to do the fix. If you’re worried about that, disconnect the battery once the lights are up.
The bulb is a 4157NA
Some guys with big arms remove the hood adjusting screw for better access. Guys with even bigger arms have had to take off the headlight cover. Four torx screws (2 back, 1 each side). Take the back ones off first with the lamps down. Raise the lights and take the side ones out.
Instead of disconnecting the battery i find it much easier to just manually raise the lights. All you have to do is take off the rubber cover over the motor wheel (not really sure what to call it) on the back side of the headlight and then you can use a regular allen wrench to turn the wheel and the head light will rise. I forget which way you turn it but you can just have someone turn on the head lights and you can watch which way the wheel turns and then just turn them back off and manually turn it.
If this is your first time changing this bulb I would definitely recommend either disconnecting the battery or manually raising the head light. It might take a little longer than you think. But definitely a very easy DIY
Last edited by SFL_driver; Dec 13, 2009 at 01:53 AM.
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I is defiantly doable ,,just allow plenty of time for the first time. I had a fog and a turn signal bulb go around the same time. I figured I don't want to keep going back,,so I bought all new ones and did both sides. Kind of a PIA if you have large hands,,and they don't give you a lot of slack on the harnesses!!



Try it, what have you got to loose, I would recommend the bottom attack just to get the housing out and check/repair for bulb burn thru of the housing which will allow water in and blow the bulb again...











Watch the video of this bulb in action
Order here: http://www.shop.jwmotoring.com/produ...&productId=139
The DRLS are 4157. If you go with an LED it is 3157.
Here is a good bulb reference:
http://www.sylvania.com/ConsumerProd...placementGuide
And if you reall wanted to do something cool you can add an LED strip to your housings which looks like an Audi or Porsche. JW has pics on his site!!













