Young Doc

Okay, I hooked them up and I am getting a ton of error messages. Basically the reverse lights, LED's, and turn signals don't work on either side. This is crap because I already changed the harnesses and can't put my stock lights back in. Now I can't drive my car, and if I do it will be pretty dangerous.

Please help me figure out if I made an error in hooking up the wires to the new 6 pin harnesses. What I did was just move the wires from the 7 pin into the 6 pin in the same order as they were stock.

Left side:
1 - black/yellow
2 - grey/blue
3 - black/red
4 - black/white
5 - brown
6 - grey/black
DISCONNECTED: green/white (was #2 on original 7 pin harness)

Right side:
1 - black/blue
2 - green/yellow (was left empty on original 7 pin harness)
3 - black
4 - black/green
5 - brown
6 - grey/red

Please help me figure this out so I can drive my car again!!!

ekimpay

6 is always brown (ground) ... here's what i did on mine ... although, mine is an '06 i think it will be the same ... good luck!

Driver
1. grey/black
2. grey/blue
3. black/red
4. black/white
5. black/yellow
6. brown
X. green/white

Passenger
1. black/blue
2. grey/yellow
3. black
4. black/green
5. grey/red
6. brown

Young Doc

Okay, Steve just emailed me and gave me these specs:

left side:
1 - green/white = fog light
2 - grey/blue = reverse light
3 - black/red = stop lamp
4 - black/white = blinker
5 - grey/black = left taillamp/parking lamp
6 - brown = ground
X - black/yellow

Right side:
1 - empty
2 - gray/yellow = reverse
3 - black = stop lamp
4 - black/green = blinker
5 - grey/red = taillamp/parking light
6 - brown = ground
X - black/blue

Maybe Steve can chime in and say if there is any difference between 05 and 06. Right now i have it hooked up steve's way and it says something about the backup lamps always being on even though they are not! I had no idea the taillights could be such a pain.

MBenzNL

taillights are not painfull by themselves...it has to do with either the manufacturer of the lights (the LEDs don't seem to do too well either, the wiring of these aftermarket taillights could have been done a bot more professional) or with the wiring changes...

You can easily follow the contactpins of your original taillights up to the bulbs they are powering up...it is easy to spot which contactpin goes where and it shouldn't be too had to do the same with the aftermarket taillights...
Since you had the ground side of the taillamps powered up - they might already have fatal damage - I don't know how much those lights can bare...

greetingz,

Young Doc

Whew!!! Followed ekimpay's template and everything works fine now with no error messages. Both bottom brake lights work, and unfortunately the LED's work as running lights (as expected). Anyone know how to make these function as the OEM ones on S/CL class (LED lights only when braking)?

Steve, I see what you are saying. I guess I got lucky and these still work - but no doubt the quality is junk compared to the OEM lights. Its sort of a tradeoff, looks for quality. Too bad we can't have both. Aesthetically these lights look real nice, but obviously they are not up to MB standards from a design perspective.

Young Doc

Two of the wires got stuck and I had to actually cut and splice them.

Does anyone know if its better to solder them, use a splice connector or any other method? I think soldering would be best for durability, but let me know if there is a preferred method. Right now they are just taped until i decide a permanent method.

MBenzNL

get new pins and CRIMP them - there is a reason why MB does not solder them either

015 545 04 26 if you need a pin for a thin wire or 013 545 78 26 if you need a pin for a thicker wire

greetingz,

NO_WUR_E

for those of you who who switched the 7 pin to a 6 pin and remove it without a tool...possibly a small screwdriver.....how do you remove the clip inside which hold the wires in places. is it best to remove it from the front (with numbers facing you~7 on the left 1 on the right? OR remove it from the back?
would the clip be above the wire, right side of the wire, below the wire? Lastly, would you push away or towards the wire? Is the clip part of the wiring or part of the plastic housing?
Advanced thanks!

ekimpay

if you're referring to the clip (as in part of the housing), you just lift it up by prying it (from the front - half way). it is actually attached to the housing, so you don't take it off completely.

however, if you're refering to the clip (as in the metal pin), it is crimped to the wire. facing the front, the notches are on top & bottom. i've used 2 jeweler's screwdriver to flatten them and push back (towards the wire harness).

hoping i understood your question ...

NO_WUR_E

sorry i wasn't so clear. i want to replace the 7 pin connector to a 6 pin connector. i have an 05 c230 and want to install the S-taillights. attached is the photo of the connector. would i use a small screwdriver and push upward where the arrow is located and at the same time slowly tug on the wire? thanks for your input.

NO_WUR_E

my apologies, the picture was upside down.
7 should be on the left and 1 on the far right....

ekimpay

2 notches -- top & bottom. for the top, you push down to flatten the notch and push up for the bottom notch. it takes a lot of wiggling for the first one to come out, but once you get it out, you'll have a better idea how.

btw, check your email.

NO_WUR_E

Mike(ekimpay), thanks again for all your help!!! Once I got one off, the rest was very easy. Your wire color/numbering instructions was perfect too!!! The only thing I have to do know though is exchange the left side at factoryonegargage. There was a crack/chip at the very top. Aside from that, I love the look. Just an FYI, I got the non-leds. I didn't want to hassle with the possibility of LED bulbs burning out.

ekimpay

you're welcome. glad to help.

benzo-boi

ekimpay and NO_WUR_E,

Do you guys have matching light intensity on the running lights on the bottom? Can you guys show a pic of it lit up at night plz?

drexappeal

Never saw this thread. Wow, props to ekimpay for putting up the wiring schematic. Good job, Mike.

I think this'll help me tremendously when I re-wire (trying to get the two running lights functioning, without losing the rear fog).

Although, all of this will have to wait for my new taillights. I'm taking off the LED taillights. The right side LED's finally started to burn out and now it only has a few left...LOL.

razorfish228

I have an 05 as well. Can you tell me the part number for the harness that I need to get so that I can put these on my 05?

NO_WUR_E

I'll try to post pics tonight.

NO_WUR_E

Steve of MBenzNL posted it on this thread:

https://mbworld.org/forums/showthrea...=pin+connector

The part is:
6pin taillight connector: 037 545 35 28 - you will need 2 of these
It cost about $5 each and came from Germany. It took about 1 week to get as it has to go thru customs.

razorfish228

Can I buy this thru the dealer or can you PM me the place that I can buy this from?

Thanks

drexappeal

Try hitting up Steve. He may be able to get them.

NO_WUR_E

i got mine at the dealer. i even got a tracking number from the parts department. steve can probably get it for you too.

benzo-boi

cool, pics would be good

ekimpay

i have the LED type. are the non-LED type have different light intensity? anyway, here's a photo of mine (daytime though).

drexappeal

How did you get the inner running lights working? Did you follow the same wiring as FrankW or were you able to get it working without losing functionality of the rear fog?