Distronic retrofit DIY .. lot's of pics




This is my third retrofit, the others were Parktronic and folding mirrors. I love to tweak things on my car!
Thought I would do a little DIY for Distronic. Here’s the parts that you would need, if you were to buy everything new from Mercedes-Benz
Distronic sender: A2115402217 - $2100
Brackets : A2115401617 - $47
Installation wiring: A2115407833 - $81
Shifter cover: ?? $358
Distronic Grille: A2118800683 - $464
Distronic cover: A2118870111 - $264
Distronic switch: A2118201810 - $115
Total: $3429
My build ... I kept an eye on Ebay.de and Ebay.co.uk .. I finally got lucky!:
Ebay: Sensor + wiring + brackets + distronic switch (<$700)

Here is a picture of the sensor, mounting brackets and harness:

Here is the front bracket under the hood at the front .. I already removed the bolts (two on top and two down below), when I thought I might as well take pics. Also removed the center latch:

Bare bracket removed:

Brackets with inserts:

Sensor mounted:

I ran the harness along the front bumper and back through the driver’s side headlight. The harness has a ground wire that I connected to a ground behind the DS headlight then buried the cable in the harness running up to the Driver’s side front SAM. The SAM is in a black box under the hood next to the ECU (I forgot to take a picture of the engine bay)
The SAM is held in by 2 torx screws and a power cable at the back that needs to be disconnected. There is also a clip at the back that needs to be pushed to the side .. sorry no pics.
Below is the SAM pulled out, on the bottom edge of the SAM is a connector I12. My distronic harness was supposed to plug into it but it was already occupied .. strange ... so I just cut the wire and did a wire tap into the wire that was there. This is to supply power to the distronic module :

I then fed the green/green/blk CAN communication wire into a hole going down into the drivers side kick panel.
I forgot to take pics for this part .. getting impatient at this point … basically you need to pull out the speaker by the parking brake, pull the kick panel .. forgot to mention, put the driver’s seat all the way back!
Lift up the carpet on the drivers side footwell. Inside, you will see a plastic tunnel for wires and in the tunnel, you will see a bunch of green wiring. They plug into one location (a single block) with several vacant sockets. Plug the black connector from your harness to that block. I’ll try to take some pics some time, this part is difficult to picture.
That is basically the wiring done for the Distronic!
Now for the Distronic switch:
For the shifter panel, I wasn’t too keen on paying $356 for a new shifter cover. Plus I could not figure out which one was the right one. There are two different styles, square and round (EPC was very confusing on this one):
Most are this style with square bottom (up to mid 2005):

Mine is rounded:

Couldn’t identify precisely the right one from the EPC, but they were roughly $350 or so.
I looked on the back side and saw that it had the places for holding the distronic switch cast in there already:

So I decided to cut out the top side, this part was rather time consuming:

It didn’t look too good so I added some 3M CF Dinoc:

Now I just need to cover the rest of my dash .. this is extra incentive to!
I forgot to mention, the distronic switch has a little pigtail that plugs into the switch for the suspension and Parktronic on the underside.
After all that was done, I used my DAS to code the CGW.
I had changed my front end to E63 front end and bought an aftermarket grille that happened to be plastic. The distronic will not work through metal grille. I thought I would just try it out. Voila … worked like a charm .. don’t even need the plastic distronic cover!
I haven’t done much calibration with it and haven’t driven in heavy highway traffic yet, so we will see how it does. It’s kind of fun to use though with the trials I have done so far! ☺
Last edited by turbo97se; Dec 15, 2014 at 10:25 AM.




So was the coding difficult? I guess you have quite a bit of experience with these cars to know how to get the computers to talk to each other.
What's next, heated second row seats?
The biggest retrofits I've tackled are the ventilated front seats and second + third row shades. =]
Anyone knows anything about issues with distronic and how to fix them?




There are some adjustment settings in DAS that calibrate the sensor angle and steering(?) angle sensor .. can't remember off the top of my head.
For the person with distronic issues, you'll need to connect up the DAS. Then just try communicating with it and run quick test, then check fault codes, after that (with a passenger) watch actual values to see if there is a problem while the car is running and distronic active. There's not a lot that can go wrong with these, it's either the module or the wiring ... not much to it
Next up? Not sure ... probably Power Trunk closer. I know it's been done before and some people say it's more trouble than it's worth, but it's pretty cool.
I play with the DAS a little, not as much as some guys on the Forum, but know enough about it to get around. It's not intuitive that's for sure. If you get into CGW from the wrong route, you can't do adaptations which is kind of strange.
Wish I could do distronic plus ... but that one would be a lot more tear up I am sure. I'm happy enough with what I have now
Anyone knows anything about issues with distronic and how to fix them?
Oops, I has you mixed up with the installer, but the same applies if you have a aftermarket grill or a damaged one
Btw awesome job tackling the install
Last edited by stockC43; Feb 11, 2013 at 01:28 PM. Reason: Oops




Trending Topics
The Best of Mercedes & AMG
Last edited by mertd93; Feb 11, 2013 at 07:23 PM.
The plastic distronic cover is for also protecting the radar. It is worth it to have the plastic cover which only costs a few hundred to replace if it got damaged instead of having to replace the distronic sensor if something came through the vent and damaged the radar.




Also T-bone .. thanks .. you make a good point ... actually, I was already planning on getting the protective cover because I think the range may be reduced due to the grille. I have located one ... but I didn't think of debris coming through the grille.
I drove with it today ... fun to use but it brakes a little too late for my comfort.My foot needs to be ready over the brake Pedal in stop and go traffic. In heavy traffic that is still moving, it is nice though. If I knew distronic plus would work on our cars, I'd be up for the challenge, but with it being rather expensive, I don't want to chance it ...
Last edited by turbo97se; Feb 12, 2013 at 01:49 AM.
But its relevant to previous posts.
My SL needs a A2305400417 radar (I know various A230540xx17 will work too)
Question is I can get a A2215400417 much easier and half the cost second hand. It physically looks the same. Will it work??




But its relevant to previous posts.
My SL needs a A2305400417 radar (I know various A230540xx17 will work too)
Question is I can get a A2215400417 much easier and half the cost second hand. It physically looks the same. Will it work??




Parktonic requires removing bumpers, popping out the bumper trim and replacing with holes and dash top removal and running some wiring around and some coding needed with the DAS.
Keyless Go is quite a bit more work it appears, I don't have experience with it but would require antenna installs, handles (no big deal) and some modules. If I had a parts car, I'd probably give it a shot myself

Pics upon request.
http://translate.google.com/translat...ff%26qscrl%3D1




