Tutorial: How to install HID kit into IS250 IS350 [pics]

[SophieSleeps]

1. Pop open your hood. You'll have to remove your panels.
To do so, look at the pic below and start removing them in red. I may have missed some. Use your eyes damnit.
To remove them, push the center downwards with a screwdriver. You will hear them "pop" and then you should be able to pull the entier pop-fastener out.

There are 2 special fasteners and you will need a 10mm socket or a large head flathead screwdriver.
Loosen as much as possible (the nut will not come out. It is designed to stay with the cover)
Then pull the panel up and it will come upwards with it.

2. Time to remove your airbox to get to the passenger headlight.
In the pic you need to remove 2 screws (Top and left).
Then loosen the clamp for the airbox (Right)

3. Unclip the MAF sensor

4. Pop the clip off the dust cover to the headlight. Remove the bulb (twist counterclockwise) and pull it out with the harness.

5. Here is where it gets rather vague. The rest is wiring. Wiring is an art.
You can do it however you'd like but here is how I did this particular car and this particular HID kit.

I drilled and dremeled a hole in the dust cover.

6. Pull out the factory harness.
Push the wires through with a grommet.

7. Cut the factory harness so that you can solder it to the HID ballast wiring. This supplies power to the ballast.

Blue is + and black is - (ground)

8. Solder the stock wiring harness to the wiring for the HID ballast.

9. Put the bulb into the headlight and twist clockwise to lock it in.
Here is a pic of the dust cover on and the wiring in place.

10. Wire up the ballast to the bulbs and secure the ballast somewhere.

11. Now onto the drivers side. I'm going to leave out some of the repetitive steps from the passenger side and simply give instruction on how to get to the bulb.
Unscrew the 10mm screw that holds the windshield washer fluid filler neck.

12. Remove the black cap for the filler.

13. Here is a pic of the drivers side dust cap.
Do the same as the passenger side from here on in.

[car_lost]

I think this is the best DIY for HID's that I've seen. Good work.

[SophieSleeps]

People should get off their asses and start writing tutorials.

[droppedlex]

doesnt it already comes w/ HID system?
or were you just upgrading the Bulbs?

[SophieSleeps]

The IS X50 doens't come with HID's from the factory. It's an option.

[Mad Catz]

Thanks for the write up. It will help me alot.

I have 2 questions:
1) What is the stock headlight bulb?
2) Where did you choose to mount the Ballast?

Thanks again.

[Mad Catz]

Okay, i found the answer to my first question.

The low beams are H11 bulbs.

[t-tak]

Great Tutorial, Are some kits plug and play or do they all require splicing and soldering ?

[Jay.Diem]

wow this is a nice write up ... great timing too...my kit just came in yesterday

[EvilTeo]

can you write one up for the fog lights as well?

[blklexo]

Yeah please do it for fogs also. I have a McCulloch HID kit off my rsx that i'll be using for the fogs, already ordered the new bulb size for fogs but i'm hesitant to do installation since i'm new to the whole lexus thing.....if it was my acura it would of been done in 30mins

[lazilude909]

nice write up!

[lfeharri]

how come i can't see the pictures

[GS350driver]

wish I saw this before I did my 1st install. lol

[XenonDepot]

Great write up!