When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The fuses go into their color matched places in the rear fuse box. Youll also need to add a couple relays to power them so here is a photo of my rear fuse box so you can see what you are missing.
Attached to this post is a pdf with the part number to make a connector for the brake controller so its plug and play with the harness.
Buy your SAM from a reputable dealer (online is ok) and have THEM install it (just the sam have all the other wires run and plug there for them to plug into the sam). because the first dealer I went to shorted out my new SAM and the second dealer was able to replace it and reprogram it because of the parts warranty.
On a side note, I didnt need a new bumper cover either, all I had to do was cut a small portion of mine to fit.
Hey buddy Im doing this right now. I have one question. The multipin white connector, where does it go to? thanks in advance for your help
Dinismb, did you ever figure out where the white connector goes? I will be buying both harnesses mentioned by Anthony Porta and I'm double-checking what else I'll need.
I'm getting the hardware from the dealer but they said it does not come with any harnesses. And I'll have to buy the 7-pin socket that goes on the hitch (not mentioned in this thread so looking around for the correct part # in ECS tunning). Is that all I'd need? Hoping to start working on this this coming weekend... :-)
Dinismb, did you ever figure out where the white connector goes? I will be buying both harnesses mentioned by Anthony Porta and I'm double-checking what else I'll need.
I'm getting the hardware from the dealer but they said it does not come with any harnesses. And I'll have to buy the 7-pin socket that goes on the hitch (not mentioned in this thread so looking around for the correct part # in ECS tunning). Is that all I'd need? Hoping to start working on this this coming weekend... :-)
Thanks in advance for your help!
Ok so here is what I did. I took the hitch off of the ML and installed in the GL and I had to do some mods.
First of all, make sure you have a GL hitch if installing it on a GL or ML hitch on ML, as the GL has 2 supporting arms on each end that go as far as the whole trunk space. The ML has only one supporting arm on each side.
As for the white connector its for the brake controller. I left it out as I will never use a brake controller. I took it apart and after realizing I’d have to tear the whole ride side of the car apart I sad funk it. You have to take all the wires apart and follow its wiring through the rear right side panel, and then underneath and all the way to the front of the vehicle underneath the steering wheel. If you remove the underneath panel next to the OBD scanner hookup you will find a blank connector which is for a brake controller.
Then youd have to go to DAS and under the rear sam/ developer mode/ and enable trailer coupling/hitch. Thats it.
Dinismb, did you ever figure out where the white connector goes? I will be buying both harnesses mentioned by Anthony Porta and I'm double-checking what else I'll need.
I'm getting the hardware from the dealer but they said it does not come with any harnesses. And I'll have to buy the 7-pin socket that goes on the hitch (not mentioned in this thread so looking around for the correct part # in ECS tunning). Is that all I'd need? Hoping to start working on this this coming weekend... :-)
Thanks in advance for your help!
Oh and also, if you look at Anthony’s picture of the fuse box panel, you will need the 2 grey relays on the top right corner on the picture.
with brake controller I haze done it a few times (2 ML and 1 GL) by running three core (normally an offcut of power extension lead as it has tough shething) ,
one feed (taken from bottom right of rear fuse box),
one from brake light (at plug as signal for controller)
and one to the service brake terminal on plug -
run it under vehicle til you get to the plastic under floor pan on right. Run it under these plastic covers, into battery box along inside of centre console and then to drivers area where you want controller . This is just with a normal (Tekonsha etc) type controller.
In Australia we have to run a brake controller "to be operated from drivers position" on any trailer of 750 kg gross weight.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
will be working on this soon
