M-Class (W166) Produced 2012-2015

2015 ML-350 dim headlights?

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Old 01-28-2020, 03:28 PM
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2015 ML-350 dim headlights?

Hi, we have a 2015 ML-350 and I find the halogen headlights are not very bright especially in the rain. On non rainy nights, the low beams only project out about 15 feet making it very difficult to see the road ahead. I have to constantly have the hi-beams on. Does anyone else have or feel this is an issue? Any suggestions on how to have more light projecting forward from the headlights.?

Thanks!
Old 01-30-2020, 09:19 AM
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1. replace with new bulbs. They do dim over time. 2. Replace with HIDs.
Old 01-30-2020, 09:38 AM
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Go with an HID conversion. Will make a huge difference over crappy halogens. Hit us up over PM or email us directly at aznoptics@gmail.com and we can set you up.
Old 02-06-2020, 02:19 PM
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Originally Posted by AZN Optics
Go with an HID conversion. Will make a huge difference over crappy halogens. Hit us up over PM or email us directly at aznoptics@gmail.com and we can set you up.
Except the way the bulbs are designed, it is damn near impossible to screw them into the housing. You need to make a bulb with a solid base and an H7 adapter built in. The product you sell has a flimsy base.
Old 02-06-2020, 04:18 PM
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Not sure what you mean? The Morimoto H7 bulbs are H7 bulbs with H7 keys so don't need an H7 adapter. http://www.morimotohid.com/h7-xb-hid.html

Unless you're talking about the bulb retainer. We do include a universal bulb retainer with metal tabs that can be bent to fit any application. Alternatively, it's fairly easy to modify your existing bulb retainer to be reused for aftermarket HID conversion as well. That's what other ML customers have done.

Here are customer pics of our HID kit paired with LED parking lights.






Old 02-15-2020, 05:47 PM
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Originally Posted by AZN Optics
Not sure what you mean? The Morimoto H7 bulbs are H7 bulbs with H7 keys so don't need an H7 adapter. http://www.morimotohid.com/h7-xb-hid.html

Unless you're talking about the bulb retainer. We do include a universal bulb retainer with metal tabs that can be bent to fit any application. Alternatively, it's fairly easy to modify your existing bulb retainer to be reused for aftermarket HID conversion as well. That's what other ML customers have done.

Here are customer pics of our HID kit paired with LED parking lights.



Okay. Thank you for the response. I have a few questions:

~What is the service life of the bulbs?
~What is the approximate light output?
~What is the return policy in case (god forbid) if they don't work?
~Do you have any solutions for high beams and do you know of any way to replace the incandescent turn signals?

Thank you!
Old 02-15-2020, 06:08 PM
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And are there any videos on youtube that show the installation? There's a lot of cross talk about universal vs OEM retainers. Never seen one so would like to get an idea of what that's about. A picture is worth a thousand words. A video is priceless.
Old 02-15-2020, 06:12 PM
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The beam pattern photo shows the ground wire shadow. Is it not possible to orient this so that it is not visible?
Old 02-15-2020, 06:54 PM
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Originally Posted by JD101b
~What is the service life of the bulbs?
~What is the approximate light output?
~What is the return policy in case (god forbid) if they don't work?
~Do you have any solutions for high beams and do you know of any way to replace the incandescent turn signals?

​​​are there any videos on youtube that show the installation? There's a lot of cross talk about universal vs OEM retainers. Never seen one so would like to get an idea of what that's about. A picture is worth a thousand words. A video is priceless.
2500 hours rated lifespan, 3400 lumen, covered under 5 year warranty. They work as we have these on plenty of MLs. High beams use the same H7 kit. Front signals use a set of 5200 bulbs which we are currently out of stock on unfortunately. Here's install instructions one of our customers recently made. It's on a GLC, but pretty much same process https://imgur.com/gallery/BUbOTVM

Originally Posted by LILBENZ230
The beam pattern photo shows the ground wire shadow. Is it not possible to orient this so that it is not visible?
Unfortunately not unless you do a full retrofit with xenon projectors.
Old 02-18-2020, 12:35 PM
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Originally Posted by AZN Optics
2500 hours rated lifespan, 3400 lumen, covered under 5 year warranty. They work as we have these on plenty of MLs. High beams use the same H7 kit. Front signals use a set of 5200 bulbs which we are currently out of stock on unfortunately. Here's install instructions one of our customers recently made. It's on a GLC, but pretty much same process https://imgur.com/gallery/BUbOTVM



Unfortunately not unless you do a full retrofit with xenon projectors.
Thanks for all the info.

What are the parts number parking light bulbs (that fit in the high beam housing) and where can I order them on your site? Also, do I have to ground the bulbs (i.e. are these "plug n' play" and if not do you have any that are?) and am I able to fit the ballast in the housing or do I have to run it outside?

Thanks.
Old 04-26-2020, 10:55 AM
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Originally Posted by JD101b
Thanks for all the info.

What are the parts number parking light bulbs (that fit in the high beam housing) and where can I order them on your site? Also, do I have to ground the bulbs (i.e. are these "plug n' play" and if not do you have any that are?) and am I able to fit the ballast in the housing or do I have to run it outside?

Thanks.
I’m currently doing a full LED swap on my ML550 with standard halogens. Here’s all the bulbs you’ll need.

FRONT
High Beam - H7
Low Beam - H7
Side Marker - T10 Amber
Parking Light - T10 White
Turn Signal - 5200

REAR
Brake Light - 1157
Reverse Light - T15 White

Old 04-26-2020, 11:05 AM
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[QUOTE=imthatmvrk;8039356]I’m currently doing a full LED swap on my ML550 with standard halogens. Here’s all the bulbs you’ll need.
Thanks.

Two questions....what LED's are you using for the high/low beams? I've tried a few brands and all have been pretty disappointing. Better than stock, but not by much.

Also, I was under the impression that the front turn signals aren't replaceable. How do you access those bulbs?

Best,

J
Old 04-27-2020, 04:33 PM
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the ones I have been using on my MB ML350 are made by Oedro. I have been using them for 1.5 years now with out a problem. I install the LED low beams only.

https://www.oedro.com/blog/3-popular-led-headlights/

Good luck.
Old 04-27-2020, 06:09 PM
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Thanks...I have a few questions if you don't mind:

How is the installation process? Of the three or so bulbs I've tried, none really fit the bracket, even with the H7 adapter attached. Getting them seated properly has been impossible. How do you get them to fit properly? How is the aim and cutoff?

Also, how is the light output versus the stock halogen?

Thanks
Old 04-27-2020, 11:05 PM
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OK. The installation is not as easy but not hard. You have to take the tires off and slide off a tray where the lights are on each side.

The daylight running are also LED's and were a bit trickier to installed. The MB desogn to hold those lights is not the best and even the OEM light sit a bit lose on the housing. Maybe you can find LED for the daylight running a bit smaller than what I got, bit for the reason stated before you have to very careful put in them back in the holes. If they pop off they will fall inside the lens and taking them out is a royal pain in the A...s.
(if this happens to you the best way I found to take them out is using a shop vacuum attached to a hose the size of the bulb and sucking that sucker out carefully. Here are some pics:

The first pic is the LED daylight running light. GOOD LUCK!!








Old 04-29-2020, 12:52 AM
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Originally Posted by JD101b
Okay. Thank you for the response. I have a few questions:

~What is the service life of the bulbs?
~What is the approximate light output?
~What is the return policy in case (god forbid) if they don't work?
~Do you have any solutions for high beams and do you know of any way to replace the incandescent turn signals?

Thank you!
That's my car and I could not be happier with AZN conversion kit. I would recommend them to anyone over the stock halogens.
Old 04-29-2020, 10:03 AM
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The only thing I am concerned about is grounding the Xenon's. Did you have to do that? How long have you had them installed?
Old 04-29-2020, 11:18 AM
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I just replaced mine with LED bulbs I bought from Amazon. A decent pair cost about $40-60. Not bad at all and much brighter than the stock halogen. Might not perform as good as the Xenons but saves you a lot of hassle working with Xenon high voltage.
Old 04-29-2020, 12:59 PM
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Originally Posted by JD101b
The only thing I am concerned about is grounding the Xenon's. Did you have to do that? How long have you had them installed?
The kit comes with a grounding wire. Just find a screw nearby and attach it to that. I have had mine installed since October I believe.
Old 05-13-2024, 07:28 AM
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Originally Posted by Eric@wages
OK. The installation is not as easy but not hard. You have to take the tires off and slide off a tray where the lights are on each side.

The daylight running are also LED's and were a bit trickier to installed. The MB desogn to hold those lights is not the best and even the OEM light sit a bit lose on the housing. Maybe you can find LED for the daylight running a bit smaller than what I got, bit for the reason stated before you have to very careful put in them back in the holes. If they pop off they will fall inside the lens and taking them out is a royal pain in the A...s.
(if this happens to you the best way I found to take them out is using a shop vacuum attached to a hose the size of the bulb and sucking that sucker out carefully. Here are some pics:

The first pic is the LED daylight running light. GOOD LUCK!!










Hey there!! I know this post is super old, but I would like to know how these headlights worked out in your ML. I am going to be purchasing a 2015 ML 350 with the stock Halogens and would like to try and upgrade the headlights. Thanks for your help!
Old 05-13-2024, 09:25 AM
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Not OP, and I have since sold my ML, but I ordered a set of LEDs for the high and low beams, along with parking light bulbs. Made a big difference.

You should be able to get the job done without removing the tires, though I agree that actually getting the bulbs into the socket was a giant PITA.

Many bulbs wouldn't seat properly in the sockets - the only ones that had an OEM fit were from Headlight Express - the bulb bases were specially designed to provide a snug fit, and they actually fit really well.
Old 05-13-2024, 09:52 AM
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Originally Posted by JD101b
Not OP, and I have since sold my ML, but I ordered a set of LEDs for the high and low beams, along with parking light bulbs. Made a big difference.

You should be able to get the job done without removing the tires, though I agree that actually getting the bulbs into the socket was a giant PITA.

Many bulbs wouldn't seat properly in the sockets - the only ones that had an OEM fit were from Headlight Express - the bulb bases were specially designed to provide a snug fit, and they actually fit really well.
Awesome, thanks for your reply! Any specific bulbs I should be looking for on there or can I just put the specific model in and it will automatically find the bulbs for me.

I honestly would just do the high and low beams, unless doing the indicator lights are really worth it
Old 05-13-2024, 10:29 AM
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Originally Posted by Thoin343
Awesome, thanks for your reply! Any specific bulbs I should be looking for on there or can I just put the specific model in and it will automatically find the bulbs for me.

I honestly would just do the high and low beams, unless doing the indicator lights are really worth it
I believe the low beams use the H7 socket. I don't remember the high and parking lights. You can check the socket type in the owners manual. www.superbrightleds.com might also have the exact part numbers.

You can also replace the rear brake bulbs (as I did). The front turn signals are sealed in the housing and are not accessible (I mean, they probably are accessible and might be user serviceable but you'd need to remove the entire headlamp assembly).
Old 05-17-2024, 01:09 PM
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Good afternoon, you can always try installing high quality h7 bulbs, type OSRAM NIGHT BREAKER 200, H7, in my case I noticed a lot of improvement.

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