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hi new to mb and bought c350e estate
and looking to fit acc distronic ive bought the radar and cruise switches
i need wiring diagram for radar please i should think power and can where does it plug into?
is the plug for radar part of front bumper loom ?
hope someone can help
Based on what I've read, retrofitting DISTRONIC is a no-go or at a minimum very expensive. DISTRONIC in the W205 doesn't exist on its own. It goes together with the active steering assist and all the various safety systems. There is software etc. that needs to be there. It's not just a matter of plugging in a radar sensor for the grill. There are also stereo cameras in the windshield. As far as I know, models w/o the driver assistance features only have a single camera in the windshield instead of the two camera stereo setup. The cameras are used to detect pedestrians and other objects in addition to the radar sensor which largely only measures distance and speed of objects ahead and also detect the lane markers and other cars in adjacent lanes. The system is much more than adaptive cruise control these days. It's level 2 semi-autonomous driving and it needs more than a stalk and a radar sensor.
Last edited by superswiss; Oct 26, 2020 at 04:04 PM.
ok ill keep looking in to it cheaper this way than loosing money on selling and getting ripped off buying another with all the gold toys
i only paid 13500 for c350e 29k my16 so i think ive done well
not much on many retrofits so have to learn myself unfortunately
simple wiring diagrams for me are the main things
Please understand that in today's auto manufacturing - to be efficient - that C-Class wiring harness is made specifically for the features that were scheduled for your C-Class when it was built.
If a Mercedes WAS NOT scheduled to have Driver's Assist at the time it was built - then it does NOT have harness wiring for Driver's Assist.
Even if you got a wiring diagram for a wiring harness for a Driver's Assist - wouldn't do you any good - BECAUSE THE DRIVERS ASSIST WIRING IS NOT THERE !
On top of that it's a C350e - unless you have the talent to Build-A-Intelligent Robot with parts from a hardware store - Forget About It Mate !
no problem must cost a fortune doing looms for each car
im used to retrofits in cars ive owned before audi lexus toyota to name a few so used to making up looms
It's not just the wiring, but the computing hardware as well. Some modern cars have up to 80 ECUs controlling the various subsystems. MB etc. are not in the business of installing ECUs in cars that aren't actually used, unless the customer ordered the corresponding option. It'd be way too expensive to install all this unused hardware and pointless. If it was installed it also needs to be tested, adding additional cost. Most of these ECUs are created and developed by a number of suppliers. With electric cars, particularly Tesla, there's a move back to a more central computing platform. In a Tesla for example, the main computing hardware controls the Infotainment system as well as the self-drive functions. The issue with the decentralized approach that the Germans have pioneered in conjunction with the CAN bus is the complexity of updating the software in the car, because each ECU runs its own software, developed by the same supplier that developed the ECU, so there isn't a common software infrastructure. That's poised to change with German manufacturers as well as customers more and more demand over the air software update capabilities in their cars. The downside of centralized computing is that there is less redundancy. You don't want to end up losing control over the car if the Infotainment computer crashes, so even a Tesla still has a separate ECU that controls all the important driving functions. The nice thing about German cars is that if one ECU crashes, then the failure is usually isolated to a small area, but most other functions remain operational. One of my business partners bought a Tesla Model 3, and on the drive home the main computer crashed. As a result he didn't even know how fast he was driving, because all the driver information goes through that central computer. This doesn't happen in a German car, because the instrument cluster is usually controlled by its own ECU and if the Infotainment system crashes, you still have all the driver information in the instrument cluster, so there is a value to both approaches.
Last edited by superswiss; Oct 26, 2020 at 08:01 PM.
Mercedes-Benz E-Class 220D Amg Line (Premium Plus) 2019
Hey guys,
I am looking into this myself for my new car. Any progress you made on your own? Your 69reg is very similar to the spec I have I believe. Active parking assist, active brake assist, traffic sign assist. My car has only single camera under windscreen. But I'm not necessarily going for distronic PLUS, which would be nice too, that other people keep mentioning and saying it's too expensive/difficult. I am looking for minimum distronic, which just keeps distance to cars in front, that's all. For that it seems you either only need code and buttons, or maybe a radar fitted (unclear as obviously radar exists for active brake assist).
Let me know what you found out, thanks!
These guys seem to have figured it out for anyone in the UK still looking to do it. Do let mw know if anyone gets it done from them and how it went as I would really like this feature in my C200 amg line too.
Yes, it is easy to add Distronic pro (code 239) in W205 facelift. Mine is MY2019, Europe and I made it.
Wheel buttons, left group, with distance buttons,
Radar behind star, just swap existing one with no changes of mounts,
One new pair wires for Flex E communication between radar and EZS module. Just populate empty holes in connector.
Coding and calibration with DTS Monaco and Xentry.
Last edited by gadnyara; Jun 26, 2023 at 01:14 AM.
Yes, it is easy to add Distronic pro (code 239) in W205 facelift. Mine is MY2019, Europe and I made it.
Wheel buttons, left group, with distance buttons,
Radar behind star, just swap existing one with no changes of mounts,
One new pair wires for Flex E communication between radar and EZS module. Just populate empty holes in connector.
Coding and calibration with DTS Monaco and Xentry.
Hi! Could you provide any links where to get the mentioned parts needed for the retrofit?
But, at the beginning you need to check the EZS module (under front right seat). You need pins #33 and #34 on the module. Some cars do not have them. I know it is possible from other user, with US car.
I have some experience here, in Europe, and never met module with missing 33, 34 pins.
But, at the beginning you need to check the EZS module (under front right seat). You need pins #33 and #34 on the module. Some cars do not have them. I know it is possible from other user, with US car.
I have some experience here, in Europe, and never met module with missing 33, 34 pins.
Hi!
I'm trying to install Distronic on a Mercedes C-Class W205 from 2019
I've already changed the left steering wheel control and the radar sensor, but I can't find the EZS module to find the pins where I have to connect the new pair of cables... How can I know which is the correct connector? Does anyone have any photos?
Thanks for the reply, I know where the EZS module is, but I'm having a hard time finding where I should connect the cables. I'm sure it's like this:
Pin 6 From Radar > In splitter Pin 1 > on the EZS pin 33
Pin 5 From Radar > In splitter Pin 2 > on the EZS pin 34
"The splitter" refers to the X30/27 can bus, but I can't figure out which connector or the correct pins are, how can I find this out?
And then on the EZS module, are the pins correctly identified? (I haven't lifted the carpet under the seat yet)
Simply installed the wires directly to the connector on the module.
And yes - it is easy to identify the pins on EZS. I think it is good idea to look at the module, as I mentioned in older posts, there are EZS modules with NO 33 & 34 pins....
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