Hi!

I've bought these LED's.

But I'm still trying to figure out how to install them. Found this post with some info: http://www.slkworld.com/slk-r171-cl...71-class-diy/24966-diy-replace-passenger-side-low-beam-bulb-2005-slk-350-a.html

Good luck!

 

Have a read of this

http://www.slkworld.com/slk-r171-ge...lk-r171-general-discussion/172562-new-led-cree-4800lm-6000k-headlight-bulb.html

 

I have leds in my "Spyder" drl headlights and the work great, but for standard headlights you'll need to look for a model that the typical motor/fan on the rear of the led bulb can be detached as the metal retaining clip on standard headlights won't go over it!

You can check out how mine look here to give you an idea:

https://youtu.be/w9ljXLtBOps

 

Standard H7 bulbs are quite good
You may need to change your bulbs to superior H7 bulbs or your headlight covers are dirty ( sun /uv damage )

 

Thanks to all

Thanks for your reply's. I have got some Night Eye LED'S on Order 72w 9000LM H7 6500K, should be with me on Wednesday.My Indie has fitted these to his and his colleagues cars and rates them. I will let you know how I get on with them, they only cost £24.00 delivered so worth trying!
Thanks again Nick

 

Thanks for your reply's. I have got some Night Eye LED'S on Order 72w 9000LM H7 6500K, should be with me on Wednesday.My Indie has fitted these to his and his colleagues cars and rates them. I will let you know how I get on with them, they only cost £24.00 delivered so worth trying!
Thanks again Nick

Keep this updated with pics , i read these wont fit because the holding clip wont go over the base

 

Hi Nick, I'd be interested to know how you get on with these, my lights are really poor as well so anything to improve them. Is it these you've bought ? https://www.ebay.co.uk/itm/371714456856


Sent from my iPhone using Tapatalk

 

Led

Will keep you up dated, not sure about the clips so will let you know. If I have any problems fitting I will be making a journey to see the clever guys at M B S near Southampton, can't recommend them enough. Yes they are the ones that Optim 8 has sent the e bay link. All the best Nick

 

LED Headlights

I have LED low beams from theretrofitsource 5500K in my low beam. Only problem for using an LED H7 is finding a quality one not to overheat and also make sure to balance out the current draw with resistors if need be.

 

I have LED low beams from theretrofitsource 5500K in my low beam. Only problem for using an LED H7 is finding a quality one not to overheat and also make sure to balance out the current draw with resistors if need be.

And most from ebay / china ones pack up and they send you out another one to fail months later or sooner.

If someone can reccomend a led bulb that has been on there car trouble free for more than 3 years plus and can bus friendly id buy it .

And most bulbs with many led on one bulb go out but some people dont notice it .

So whos got one still going stong and not flickering . :wink:

 

Quick up date
LED's arrived quicker than expected, came on the Monday not the Wednesday as expected. They appear to be good quality, the front part disconnects to allow you to fit the original retaining ring. That's the good news!
Not been able to fit them yet due to the ridiculously limited acces. You have to remove the wheel arch splash guards which will allow access to the low beam lamp holder. I think a lot of thought must have gone into making it as difficult as possible without being impossible to replace these lamp bulbs. I think they have succeeded!!
Hope to get this done later this week or early next week. When they are fitted I will give you my verdict.
All the best Nick

 

Did you have to remove the front bumper to install the bulbs?
Thanks in advance.

 

Who are you asking?
please use the 'quote' button at the bottom of any post you wish to reference/ask a question of

if op, they have not been on since: Last Activity: 12-08-2016

We can notify them like this @n sk1p

 

Yeah, best way to do it honestly is to remove the bumper and headlights.
I've removed my bumper probably 20+ times but there's a video on Youtube if you're unsure about how to do it without damaging anything.

 

Make life easier and buy these as well

https://www.ebay.co.uk/itm/2x-H7-LE...an-Mercedes/362028522229?epid=2153274588&hash=item544a94daf5:g:nAMAAOSwPWRZW513

 

Thanks for the advice. I ended up doing one wheel at a time but would recommend the bumper removal method. Tight work area, couldn't figure out where to lift and use a jack stand to have both front wheels off at the same time.

Advice to anyone: Make sure the bulbs are either can bus compatible and if not, order the resistor adapter cables and clips all at the same time. Waiting for each component kept me out of the car for 3 weeks! Live and learn I guess.

Thanks to everyone who offered assistance.

 

Any approximate agreement on Brand and model for low beams yet?

Still reading every post I can find but it appears there's little narrowing of the brand, model, design (passive radiator heat dissipation (braids/fins) versus fans), CAN error canceling (resistors) required or not.

Any link to a good (6000k+ white, concise pattern, no errors) LED bulb on Amazon or eBay is appreciated. I'll reciprocate by documenting the DIY experience

 

I purchased LED kits from headlightexperts.com in CA for $99 (http://www.headlightexperts.com/carfinder/?find=2015-mercedes-benz-slk-class-w-halogen-413769). I did have to get the resistors (Headlight Experts Custom Gold Resistors/Decoders - Wiring Adapters - Lighting Accessories) and ask for the round clips for these bulbs - they sent them to me without charge after learning I needed them. I've only had them installed for 4 months but I like them - white, 6000K and warranted for life when purchased through them. Somewhat of a warm fuzzy..

Don't buy the Hi beam bulbs, they don't fit the bulb adapter on the back of the bulb - at least not on my 2006 171.

Good luck,
Barry

 

Hey! I was wondering what was the round clip part number for the low beam H7s? I purchased a kit after reading your post but I can't get them to seat in the housing.

 

Just got this from HeadlightExperts - the bulb adapter to allow you to install an LED bulb in the high beams for $12.50 US!

Headlight Experts L17 H7 Adapters - Bulb Adapters - Lighting Accessories

 

I installed ‘SO-Cal fanless 6400 lumens' off Amazon and was completely unimpressed. For all the hassle, the light output (lumens) seemed visually no better than the OEM Halogen I compared while driving. Their spec is not believable. They are quite white though.

https://www.amazon.com/gp/aw/d/B01L...&sr=8-1-spons&pi=AC_SX236_SY340_FMwebp_QL65&keywords=socal-led+h7+fanless&psc=1

I liked the idea of fanless LEDs with high output but despite being described as "CAN bus compatible" (yes, they seemed to have resistors inline) within an hour, I received the dreded "low beam failure" warning. Later back on the garage, I also monitored the temperature of the braids with a DVM and a thermocouple, round dust cover on, and saw a 15 degree rise in 30 minutes, so out it went. The combination of 1. the "cooling braids" being really hot fast (100 degrees) and stuffed up against the back of the plastic round dust cap due to lack of space and 2. The error message, left me no choice but to send them back.

My biggest worry was that the instructions indicated the braids should be really open and elliptical, like a set of peacock feathers, obviously to optimize cooling. There's no way to achieve that with the available space between the back of the bulb and the round cap.

 

Old post, but I just fitted Hilox XTR Black leds in my r171. Besides not having the correct h7 adapter available, I am not really impressed with the light output. These Hilox leds ar3 supposed to be one of the best.

Thinking of going the HID route. Put some nice 4300k in. Don’t care 1bout the looks, I just want good vision in the dark.