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Discussion Starter #1
I changed my low beams on my 2017 BEV SE w/CCP and took some quick pictures.

Hopefully this write up helps anyone interested in changing their low beams.

*Disclaimer: I am not responsible for any damage that occurs to your vehicle if you decide to follow this procedure. I attempted to remove and install new bulbs the easiest and best way possible, but everyone's vehicle may be different in respect to parts being seized or flaws in manufacturing or quite simply using brute force when you shouldn't be.*

*Tools Needed*
1. Rubber Gloves
2. H7 bulbs (2 bulbs)
3. Warm weather, heat gun or hair dryer

Step 1.
Make sure car is off.

Step 2.
Find headlight assembly cap which is located inside the engine bay, behind the headlight enclosure. The low beams on the SE are the furthest and unfortunately the hardest to get access too.


Step 3.
Rotate the cap in a counter-clockwise direction if you are standing in front of the headlight. Their is a rubber seal that will make it feel tight, but it will move slowly. The cap rotates 90 degress then will stop.


Step 4.
You will need finger nails or something thin to pull the cap from the headlight housing as rotating it will not pull it away from the assembly as the rotation is only a 90 degree turn to lock it in place.


Step 5.
Inside the headlight enclosure you will see 2 yellow wires, those are the wires for the low beam bulb. The bulb fits into a holder that rotates I believe 45 degress.
*Note: This step if done in cold temperatures will be difficult as the parts are metal against plastic. If you decide to do this part in the cold use a heat gun at a low temperature for a short period of time, or a hair dryer, warming the plastic up to room temperature will make this part and the install much easier.


Step 6.
Make sure you have rubber gloves on because you do not want to touch the bulbs glass with your fingers, the oils are a great way to shorten the lifespan of the bulb. The entire bulb assembly will pull straight out.


Step 7.
The H7 bulb is a pressure fit 2 prong, so simply grab the base of the bulb and pull out of it's plastic holder.


Step 8.
The new bulb will fit in, in the exact same place, you cannot install it wrong as the plastic holder allows the base of the H7 bulb to fit only in one direction because of a tab the bulb base has which you might be able to see in my picture from Step 7.

Step 9.
Try to navigate the bulb back into the headlight assembly as best you can, it's a tight spot.


Step 10.
Rotate the bulb housing back and forth when back in the headlight assembly. You will feel the notches fall back into place and you will be able to rotate the headlight 45 degrees and it will click back into place. This step will also be easier if the plastic bulb holder is warm. Not hot, but warm. Trying to click it back into place at below zero makes it feel like the tabs will break and it will not click into place easy at all.

Once done, wait until night and enjoy your work.


I purchased 4900k bulbs off Amazon Link Here. I do not believe they are a true 4900K, but they are noticeably brighter than stock and definitely more white. I forgot to take a before and after picture so instead I parked the car and turned on the headlights, the left side unit is the halogen parking light using the same colour tone as stock, as you can see the low beams on the right are a noticeable white. They closer match the LED runners in the front bumper.

Hopefully this write up helps others in replacing their bulbs and keeping the cash some cash in their pockets.;)
 

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I think I read in another thread that it's not possible because the LED bulbs are much larger because of their heatsinks (and often fans) and won't fit without doing (probably substantial) modifications.
 

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Discussion Starter #5
LEDs are definitely not possible without modifications to the bulb housing as that holds the female sockets for the bulb to plug into, also it serves as the bulb holder, so without it, the bulb won't stay in place. Not the best design possible. If you have some design knowledge and a 3D printer you can make LEDs work.
 

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Discussion Starter #6
these are exactly the sort of step by step guides we need

thankyou @nateads
I anticipate making more, next one will be back bumper licence plate LED upgrade. @bluecar do you know if their is any possibility of getting a DIY section on the forum?
 

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I anticipate making more, next one will be back bumper licence plate LED upgrade. @bluecar do you know if their is any possibility of getting a DIY section on the forum?
we can but ask :)
 

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LEDs are definitely not possible without modifications to the bulb housing as that holds the female sockets for the bulb to plug into, also it serves as the bulb holder, so without it, the bulb won't stay in place. Not the best design possible. If you have some design knowledge and a 3D printer you can make LEDs work.
Sounds like a good idea, will look into it.
 

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I like the low beam mod a lot! Could you link the part? Not sure I'm crazy about the high beam pattern if the third picture is the result.
 

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Changes my low beams and hight beam ro leds took about 1 hour to do all 4..
Few mods need to be done and nothing that cant be undone. Left oem , right led orher picture low beam , hight beam
Could you do step by step on how you did it?
 

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Discussion Starter #13
@nateads did you notice an improvement on energy consumption? How much electricity do these bulbs draw when you turn them on?
I never checked for energy savings. But if I was to put money on it I would bet I am using a small amount more. The whiter the light the more energy is needed. I think LED is the exception to the rule, but for incandescent I have heard to get closer to white the bulb needs to burn more energy and hotter which shortens its life span. I only really did it because the egg shell yellow color looks bad to me.
 

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@nateads Do you have any trick on step 5, twisting the bulb 45 degree? It is in a very tight spot and I can’t get a good grip on it to turn.
 

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@nateads Do you have any trick on step 5, twisting the bulb 45 degree? It is in a very tight spot and I can’t get a good grip on it to turn.
If you cannot get your hand in the space, you might be able to use a channel lock wrench. But I would wrap the tips in something like electrical tape to keep from scratching the plastic if it slips. The first break is the hardest, once you get it, you will find future removals easier. I don't know if it's the expansion and contraction or from the initial installation at the factory.
 

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If you cannot get your hand in the space, you might be able to use a channel lock wrench. But I would wrap the tips in something like electrical tape to keep from scratching the plastic if it slips. The first break is the hardest, once you get it, you will find future removals easier. I don't know if it's the expansion and contraction or from the initial installation at the factory.
Thanks for the tip. I’m trying to change the low beam to LED. I think I have everything I need, will post the result if I can make it happen.
 

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Discussion Starter #17
Thanks for the tip. I’m trying to change the low beam to LED. I think I have everything I need, will post the result if I can make it happen.
Definitely post results if the LEDs work. I used white halogen and even though they are brighter and whiter than factory they don't fully match the rest of the LEDs in the front of my car.
 

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OK, I did it, great result.
 

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Awesome results! Which LEDs did you buy? Also did you have to get new dust caps for the headlight enclosure for the LED heat resistor or fan to fit?
I use Beamtech fanless LED.
BEAMTECH H7 LED Headlight Bulb, 50W 6500K 8000Lumens Extremely Brigh CSP Chips Conversion Kit https://www.amazon.com/dp/B06XH38CDR/ref=cm_sw_r_cp_tai_vxsyBb90AD744

And to be able to fit it in I need this adapter
TOMALL H7 LED Headlight Bulb Retainers Holder Adapter for Hyundai 2017 Mistra New Tucson KIA Carnival https://www.amazon.com/dp/B074ZMQTMR/ref=cm_sw_r_cp_tai_CBsyBb61C04B4

The last thing is extended dust cap. Someone has designed the extended dust cap for the high beam, but it doesn’t fit the low beam. I will have to de-design and print it out. The dust cap for high beam is here
https://www.thingiverse.com/thing:2518635

In the process, I have to cut the wires to the plastic base and make a new connector.
 

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