SLK/R171: MTEC 6000K HIDs installed 2006 SLK No Warnings Lots of Pics
Picked up the MTEC kit last week and did the installation today. Super-easy install, no extra resistor required and no lamp warning message. Took 3-4 hours total,
however I did one side in the morning, watched House MD all afternoon (was too hot in the sun), and did the other side in the evening.
Firstly, thanks to ghostdunks from benzworld forums, used his install pics.
Here is a link to his thread : http://www.benzworld.org/forums/r171...-r171-slk.html
However, I thought I'd post my own with some of my own observations.
Kit is $270 shipped 3 day fedex from ebay.
Also replaced the Parking Light bulbs and the Foglamp bulbs with 6500k halogens.
Pic of the Mtec Kit:-

Although ghostdunks did this install without jacking up the car, I prefer getting the wheel out of the way,
gave much more room to work with....
Screws to be removed are shown below. 7&8 are underneath the car.

Stock halogen removed:-

Parking bulb removed:-

The rentention clip, the mtec bulbs are slightly larger, so it had to be modifed.

Dremeled out a bit of the retention clip to fit the mtec bulb:-

Stock Foglamp vs MTEC Super White 2x Halogen 9004 Bulb:-

Stock Parking bulb vs 4300K Raybrig Wedge bulb:-

Foglamp housing:-

HID bulb cover with grommet installed:-

Mtec Ballast mounted in the same location suggested by ghostdunks, underneath the plastic:-

Zoomed out picture of mounting the ballast:-

Stock left side, Replaced HID and bulbs on the right:-

Stock:-

HIDS+parking+foglamp:

All Done, Parking Lights only:-

Parking Lights and Foglamps on:-

HIDS and Foglamps:-

Closeup:-

Light Projection :- Messy garage:- (i know i know i need to clean up !!!)

The Kit is awesome and I am really happy with the results. Thanks Ghostdunks.
Last edited by blackcls63; Sep 16, 2007 at 02:19 AM.
. I tried to install the prolumens 55w HID kit for my low beam and fogs, it worked while the car was off, however, once I started my car the ecu must of sent a test charge and noticed a difference resistance. Thus cutting out the HIDs. If you can tell me what component to purchase, or what came with your mtec kit that bypassed the check I would appreciate it. :edit: I own a 06 Slk R171
if you buy the cheaper 150$ kits you will have to do some resistor splicing etc...
mtec makes these kits for mercedes with that issue in mind...
Anti-Flicker control -
http://www.stealthauto.com/Products/...__HID-CAP.aspx
Excuse the ghetto PS skill 
As far as I can tell, the ballast is usually directly connected onto the HID bulb (as denoted by the small red circle). The mtech kit just includes the additional adapter denoted with the bigger red circle. That is the adapter I am purchasing from stealthauto to correct the ECU voltage check.
Last edited by Babietwinsue; Sep 18, 2007 at 03:14 AM.
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, I just wanted to help him find some alternatives. He's the one that suggested the stealthauto and explained to me why it didn't work the first time. But if it doesn't work, he's going to get it
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how did you wire up the HID foglights?
I'm guessing that you connected them direct to the battery, and used a relay triggered by the original fog lights wire? Reason why I guess this is because looking at your ballast, its one of the high power ones(50w as opposed to 35w for standard HIDs), and if you connected the ballasts directly to the fog lights wire, you won't be getting the bulb out warning OR the flashing. This is because the stock halogen bulbs are drawing 55w, and if your HIDs are drawing 50w, that difference won't be enough to trigger the bulb out warnings/flashing. In fact, 35w is probably enough to not cause it, speaking from personal experience, when I swapped my halogen H7s from my low beams to HIDs, I connected it straight(NOT using relays) to the existing headlight wire, and it worked fine without needing any settings to be changed on the gateway/SDS/etc to tell it to expect less current, and I didn't get warnings/strobing
If you did use the relays(and direct connection to battery) to connect the fog lights, then this is what is happening:
1. When youn turn your fog lights on using the switch, the power is flowing from the SAM to the fog light wire
2. The power in the fog light wire triggers the relay, which then sends power from the battery direct to the HID fog light
3. Unfortunately, if all the fog light wire is doing is to trigger the relay, then its not drawing enough power, which flags to the SLK computer, that a bulb must be out, which is why it triggers the warning message. Along with the warning message, it starts strobing the power to the fog light wire, which in turn strobes the relay switch, which in turn strobes your HIDs = not good.
here is the seller I bought from
http://cgi.ebay.com/ebaymotors/AUTHE...QQcmdZViewItem
here is the seller I bought from
http://cgi.ebay.com/ebaymotors/AUTHE...QQcmdZViewItem
After 280 USD and 4 hours of work, HID has done. As you said, it worth any single cents. The car gains at least 5k more for value just looking at the head light.



