Hyundai Forums banner

17 Elantra low beam headlight upgrade

5.4K views 21 replies 6 participants last post by  Victeknical  
#1 ·
Wow, what a difference..
Marsauto bulbs. Purchased on Amazon.
Old bulbs on left, new bulbs on right.
Super easy install. No flickering, works on all settings.
 
#9 ·
Beam pattern looks fine to me, I did not have to adjust anything on these. There is a set screw on the base of the bulb, that you can turn to adjust them. I drove from 6am (pitch black outside), and didn't get 1 person flashing me. Some driving on 4 lane road, with no dividers.
I appreciate this, thanks!

You'll have to look that up in the state you live in. But, here in Florida, so many people have LEDs in.
I can't tell if the MarsAuto bulbs are legal in California, since they don't state how many lumens they are, and I don't see any mention of DOT approval (Dept of Transportation). :unsure:🤷‍♂️
 
#11 ·
i had upgraded to LEDs months ago, much better results. My lows have a blueish brightness which looks nice and my highbeams are white light. i drive on back roads almost everynight, the lows are enough but when i flip the highs on, it makes spotting dear or taking sharp turns soo much better and comfortable. idk why hyundai chose the original lights, theyr really crappy.
 
#13 · (Edited)
Wow, what a difference..
Marsauto bulbs. Purchased on Amazon.
Old bulbs on left, new bulbs on right.
Super easy install. No flickering, works on all settings.
View attachment 483463 View attachment 483464
I just got a pair of these LED bulbs. I watched a video of someone installing low beam LEDs on a 2017 Elantra, and he left the back covers off after putting them in. He said he didn't think the back covers would fit because of how far the LEDs stuck out. Were you able to put the covers back on after you put in the Mars-Auto LEDs? I'm guessing the bulbs he used were longer, but if you could confirm that would be helpful.
 
#16 · (Edited)
Update! I installed the MarsAuto LED low beams today, and they work as advertised, meaning there's no flickering or error messages on the dash, etc. It was not an easy install though, due to how tight the spaces are. The low beams are on the outside/fender-side and are a lot harder to get at than the high beams. I pulled one of the high beam halogens first and quickly realized the mistake because the connector is different; there's no way you can accidentally install these LEDs on the high beam side. I would only recommend doing it if you already have experience working on cars and have a good assortment of hand tools. The included pair of fabric gloves were perfect for handling the bulbs, but I wore a pair of leather gloves during the disassembly/reassembly for better protection. Later when it gets dark I'll take a drive to see what the beam pattern looks like and report back (y)

Update: headlight aim seems fine and the light on the road is noticeably better than the halogens - great upgrade for a very good price. (y)
 
#18 ·
My only issue with installing these, was trying to get that dang dust cover off. It was so tight. First time being removed after over 5 years. So, it was a pain. But after getting it off, and installing these bulbs, (which took almost no time), putting the cords and box back into place wasn't an issue.
I did find, that driving with these installed for a week, I noticed that my lights were not shining on the road correctly. They looked great in the driveway, but, on the road, they were a bit off. When I removed them, I noticed I had the bulb in the wrong position, as the LED was setting at around 11/5 position. I'm kinda shocked no one was flashing me. After turning the bulb a bit, (the entire thing, not just the bulb), it when into the correct 9/3 position. (meaning the LEDs face the 9 o'clock and 3 o'clock position) The light was more inline with the road.
(my first attempt, my left light was pointing more toward the right side (as seen from the drivers seat), The right light was fine)
 
#19 ·
My only issue with installing these, was trying to get that dang dust cover off. It was so tight. First time being removed after over 5 years.
Yeah, same problem. I was worried I would tear off the strips, but I was able to get enough grip to get them turning without doing too much damage.

When I removed them, I noticed I had the bulb in the wrong position, as the LED was setting at around 11/5 position. After turning the bulb a bit it when into the correct 9/3 position.
Fortunately, I noticed early on that rotating them to the correct position was critical - getting it right was harder on one side than the other (don't remember which). This job was another example of how cars are no longer designed to be worked on by backyard mechanics :sneaky::)