Pavlos Movse

Hello..Sorry for title my car is S500 german edition i have problem with my passenger windows and rear left & right windows not working i make diagnostic
and look for fault.. The diagnostic show all windows working but i have defect central gateway.. what is the problem and my window stop working? sorry for my English

Pavlos Movse

Please anybody help?

DaveW68

My driver's window had stopped working and I took it to my local dealer last week. They did a full diagnosis and ruled out a bad switch or window motor. They ended up installing a software update to the window control module which fixed it.

Since you have multiple windows that are not working, my guess is that it's an issue with the window control module. It could be bad or just need a software update. Since you seem to be unable to diagnose the issue yourself, then you may want to let your local dealer check it out.

Pavlos Movse

Yes but my dealer make full diagnostic and 4 module from windows show no problem the only problem is this center gateway defect.. is possible my windows not working from this center gateway? how i can fix this gateway buy it new or i can make update on this gateway module?

Pavlos Movse

And where it is this central gateway module on my car? i won't take out

DaveW68

Let your local dealer handle this job.

alx

Your main gateway is the comm hub for all your modules. This is a dealer job. Trust me. Replace main gateway and take it from there.

Pavlos Movse

Yes but where is this center gateway to make it off? i wont see the part number and to buy used because now is expensive

DaveW68

You are getting in way over your head. This is not a simple part swap. Unless you are a certified Mercedes mechanic who is up to date on their latest systems and how to properly use the STAR and Xentry DAS system, you shouldn't even be considering this job for yourself. You'll likely turn your car into a giant paper weight if you try this yourself. If you really want to keep your car, spend the money and let a professional handle this job.

This is more proof positive that a warranty is an absolute must on these cars.

Pavlos Movse

Thank you very much for the advice I will go to a local dealer..

alx

The gateway is a separate part. But you cannot just swap it- it requires coding - something that can be done at a dealer or offline by somebody who judging by the questions you are asking you are not (nothing personal).

Generally when dealing with electronics you should go to the dealer as there are many and expensive mistakes that can be made while servicing it.

Polar Bear

The CGW (Central Gateway) is a device that allows the dealer diagnostic multiplexer to communicate with all of the modules in the vehicle and interrogate them for fault codes, perform actuations, etc. It is located under the driver side panel under the dash. This device is programmed with the options your car has, the country the car was built for, and is responsible for communication of data over the CAN network in your car to many different modules. If all of the windows failed, it could be an interruption in the CAN network causing this. Can you operate the windows using the Summer Opening feature (aiming the SmartKey at the driver's door handle and holding the unlock button?).

The first thing that I would recommend is have a dealer or independent shop perform SCN coding on this module. This will download the current software from Daimler and flash it to your current CGW, ensuring the software has not been corrupted or tampered with. It will also program the CGW afterwards with the options your car has, and program it the way it was intended when it left the factory. If it accepts flashing and coding, run the Quick Test again to see if the error still appears. This could likely remove the error in the CGW. Then test the windows and see if anything changed there. If they are still inoperative, then start checking the door/window modules and also ensuring they all have the current software.

You will need to have a dealer perform these steps as they will need to login to Daimler AG's servers to obtain the flash data and SA data for your VIN and program it to your CGW module. If you do not have a login and password to Daimler AG, you cannot obtain this information/data.

Polar Bear

I would recommend taking the vehicle to the dealer and requesting them to update the software on the CGW and re-apply SCN coding to it. If it accepts the flash, it should be revived. The Quick Test you posted does not show the software version, which indicates to me one of three things - 1) a bad CGW, 2) a CGW with corrupt firmware, or 3) a CGW with hacked firmware installed on it to block mileage from being transferred to EZS. Replacing it with a new one and installing the newest software and configuring it could make your odometer read differently if it has been tampered with, but I am not saying that is the most likely scenario. It could be any of the three causing it.

Firmware on newer models is now digitally signed, so it can't be altered nearly as easily.

Verado Ting

Hi guys.
I would like to ask does anyone know the location of the Central gateway module for 2006 s350L w221. Please advice. Thank you.
And does anyone had encounter the problem for w221 which is the front parking sensor is not working but the rear parking sensor is working fine. And night vision is unavailable to use but I run through test it is working fine. Please. Thanks

konigstiger

Verado Ting

Thanks for the reply. Does anyone here know what caused the distronic inoperative? And front parking sensor, night vision? Please advice me. Thank you so much for your help

konigstiger

Best to have someone pull fault codes using MB diagnostics.

Verado Ting

Thank you konigstiger.

DaleB

Yep... see my post here: https://mbworld.org/forums/s-class-w...ml#post8039344