Putting this headlight onto my 2009 C300:


Okay, so I got the 2012-13 Bi-Xenon headlights used for a really good deal and I am going to put together a DIY on how I wired it up to my 2009 C300. Currently, I have the Spyder headlights on right now. I am doing a whole front end conversion with C63 style hood, bi-xenon headlights, sport front bumper and DRL. Here's what I have so far, I need some help to figure out the rest.

*For the Low Beam HID part, the bulb is a D1S type. I am going to ditch the OEM stuff and just run an aftermarket D1S HID Kit. This way, it's cheaper and the wiring is easier. I can just tap the power off the low beam plug I already have in the car.

*On the Bi-Xenon headlight, there are two main plugs:
Black Female plug:

*Please note the numbering:
-top row is numbered 1, 3, 5, 7, 9, 11, 13.
-bottom row is numbered 2, 4, 6, 8, 10, 12, 14
-small prongs on 1, 2, 3, and 11
-large prongs on 5, 6, 8, 9, 10
-everything else is empty

*I found that on the black female plug, this is what happens when you put a 12V power source to the plugs:

• Positive on prong #8, Negative on prong #5 ==> Park Light comes on
• Positive on prong #9, Negative on prong #10 ==> Solenoid on bi-xenons activates

Purple Male plug:
There's actually two separate plugs in this one purple plug, they're held together with a puruple outer shell.

This is the outer purple shell:



*Note the numbering:
-top row: 6 through 10 for left plug, then 25 through 31 for right plug
-middle row: nothing for left plug, 18 through 24 for right plug (no numbers shown)
-bottom row: 1 through 5 for left plug, 11 through 17 for right plug

So this is what the plug looks like once I pulled it from the Outer purple shell:


Then I split the plug into two pieces as shown in order to figure out where the wires were going:

Gray Plug:


Black Plug:


Here's what I was able to map:

This is the plug for the "C" LED. I numbered the wires from left to right as 1, 2, 3, 4:

All the wires from this plug goes into the Purple plug, here's where they traced to:

• #1 ==> Purple plug #9
• #2 ==> Purple plug #19
• #3 ==> Purple plug #23
• #4 ==> Purple plug #22

*On the purple plug, If I put a 12V power source: Positive to #9, Negative to #19 ==> "C" LED turns on

 

The part I am stuck on right now is figuring out how to power up the LED Turn Signal strip. Here's what I know.

At the corner of the headlight, there's a plug that goes to the circuit board for the LED turn signal strip, as shown (it's kind of hard to see, but there are 5 wires coming out from it):



These 5 wires from the LED strip goes to the following locations on the Purple plug:

*#6 on left black plug
*#15 on right gray plug
*#24 on right gray plug
*#28 on right gray plug
*#30 on right gray plug

So far, I've tried all the combinations of 12V positive and negative combos to those 5 wires and I can't get the LED strip to light up. Any help would be appreciated.

 

I also found out that on the Black Female Plug, the prongs actually maps back to the Purple Plug. They are mapped as such:

*#6 on Purple ==> #5 on Black
*#7 on Purple ==> #3 on Black
*#1 on Purple ==> #11 on Black

 

So I need help figuring out what combinations I can do with 5 wires to get the turn-signal LED strip to turn on. Maybe I need a resistor or something? Maybe I need multiple wires on positive or negative at the same time. I am not sure. I've tried all the 1 to 1 combos, and the 2 to 1 combos, but no luck so far. Anybody got any ideas?

 

Anybody with electrical knowledge that can help me? 5-wires, one LED strip, what can I do to figure out how to power it on aside from the obvious 1 to 1 combos?

 

This is going to take more time than I have right now to read everything on the diagrams and figure it out. All I know is that the systems don't give you a +12v signal to some of the lights with the switch on because the relay has to see load to close. Therefore it can be tricky to troubleshoot the correct wire. This means all wires must be tested while under load, not open, so the relay closes and sends voltage. Otherwise the wire is dead. That is the best advice I can offer until I look at it deeper. If I come up with any ideas I'll put them here or in PM on CL.

~ O.L.T.

 

Thank you man! You're my hero! Let me know if you get anywhere, this information will help me get a start on figuring this out and researching. I was totally lost for a minute there as to what to try next. Always appreciate the input man.

 

Good stuff Anh-Tuan! Looking forward to see this write up.

 

Thanx man, still stuck on figuring out how to power up the turn signals. If I can figure that out, then I'll have all the core functionality panned out. So sad that nobody in this freaking world have the info I need. Do you know any member? on this forum that works at Mercedes? Maybe they can pull the wiring schematic on the Bi-xenon headlights for me.

 

Made this drawing so it's easier to understand what all the numbers mean:

 

So, not sure if this bulb is an additional High Beam bulb or a parking light, but it's an H7U bulb that sits right next to the projectors.

 

awesome!!

 

So, I got some more information......which I pretty much already knew, but Wanda from MBenzNL was able to provide it to me for added clarification. She said that the correct way to get these headlights to work is by having the following components:

*2 Headlight with D1S HID and Ballast
*2 Headlight Control Modules attached to the Headlights (The purple plug goes into this module)
*1 Control Unit in the car (SG SW) to connect the lights to the car
*1 SAM to connect the Control Unit (SG SW)

 

Anyways, I am not buying control units and SAM and HID ballasts. My plan is to bypass all that. I already know how to power up the "C" LED, the parking lights, the Solenoid, and I am doing a standalone D1S HID kit......so imma just make my own turn signal LEDs.

Last night, decided to bake the headlights to see what the LED circuit board looks like:

250 Degrees for 10 minutes got the glue soft enough to pry the lens off:






Here, you can see the individual High Output SMDs below the reflectors:


This is the plug that goes into the circuit board of the turn signal SMD strip:


Removed these 4 bolts, and the whole SMD unit comes out:




Removed a few more screws, and voila, here's that dang Circuit Board:




Here's a picture of it connected:


Closeup of the connector:


Closeup of the SMDs:


It looks so simple, I don't understand why I can't get it to come on:


I think I might have burnt this SMD, I place positive and negative from my 12V onto each side of the SMD and it came on for like a second and went out. Thinking that was a bad idea, but I was planning on putting my own SMD over these and wire them up separately anyways.

 

Please refer to my thread:

https://mbworld.org/forums/c63-amg-w...t-diagram.html


The yellow wire is for the signal, You have 10 pins total ?like my connector ?

I don't know if Non C63 connect the same with C63 or not.

 

i suggest you sell your headlights, and buy the oem like headlight on ebay or alibaba….which much easier...

 

oh nice! Let me look through your stuff and see if it matches. Thanx man! I am not buying those hideous aftermarket headlights btw, they look terrible.

 

They have a new style that look exactly oem one, but does not have ILS and many wires like oem ILS

I look and ILS oem have diff wires and weird and so confusing.

You better off get oem look just the picture you post earlier then wires them like a normal.


I got quoted from headlights 750$ a pair

They have only 7 pins need to connect to our connector

Turn signal, low, high, parking, ground and some other...


You will never be able get the ILS oem working without the new Sam. I have tried and would save you alot of time...put back and sell them

Similar connect diagram betweren our headlight vs non ILS non bixeon version 12

But a huge diff to ILS bixeon

Look at my diagram and other 2 diagrams

You will see all wires and color are diff

 

Can you show me a link to the headlights you're talking about? I can't find ones identical to the OEM ones at all. The only thing I've found are these, which I don't like:

 

http://smrke.en.alibaba.com/product/..._fog_lamp.html


I also have couple sources from Taiwan which they are willing show you how to plug in pre facelift

The headlight you found plus the one here are using same connector for facelift non ILS bixeon


Trying sell the oem headlights and order one of these and see..I'm still waiting on my hood, so can't really test, but I'm trying find more informatio when I'm ready.

Let me knownif you want to order, I can get him ship around 800$ I think plus instruction which wire to which.


What is your email?

Forum post is not efficiency

 

Can you take a picture of your connector ?

Does it look like mine ?

 

Oh wow, that is nice! Kinda wished I saw those before I bought my headlights but I am thinking maybe I'll just keep mine for now and see if I can get it to work, pretty much got everything figured out, just need to test it on the car. Instead of trying to get the orange LED turns to work, I am going to replace it with a high output white LED flex strip, so I can have white turn signals. If things doesn't work out, I'll definitely hit you up for those haha.

 

keep us updated romeo291. I ran into the same issue with the turn signals.

 

I am wondering will this work on the non bixeon w204, which mean without the lighting package.

 

So if you own a facelifted C, would the headlights from Alibaba just be a direct plug and play?