amgcedes

Yeah I'm going to be sending in a complaint did a lot of business with mb of Portland for them not to accommodate me in this situation is ridiculous! But on another note mb of willsonville said bring it right in on my way now! 1hr farther but not a problem! Gonna have them go ahead and update command also! Will post results!

amgcedes

So 1 hr later mb of willsonville did the update for door control module driver window now works great! Thanks for the help guys!

Vilpo

Ok, i can confirm flashing with Star diagnosis did fix power window problem also on our S350 -05. And just to clarify, it does not need SCN coding since new control unit is not installed, just updating the software on the old one.

nishboo

How do you update the software in STAR? It keeps trying to go online, and I have one of the generic STAR modules.

Vilpo

You can update control module software using star diagnosis, procedure is as described in the service bulletin mentioned earlier in this thread.
You don't need to go online if your SD software has offline programming activated.

maniekS500

Hi,
can you describe HOW TO remove window motor ? Yesterday I tried to remove motor from left rear door and it seems to be screwed to white plastic (window line storage) ? I tried to pull a little, but there was a resistance. I unscrewed white plastic, but I feel - it also was like mounted additionally from inside of door ?
If someone has photo story - how to change/remove motor from W221 window door - please post them.

Thank you,
Mariusz

konigstiger

http://workshop-manuals.com/mercedes...ce_and_repair/ + next page

BadBenz1

Hey Guys - Thanks alot for this info. Read it over last night when my driver window failed on my 2007 S550 RWD. Funny thing is that it happened when I got home after racing a 300C srt8 on the highway. Ive never taken my car up to 6500 rpm near the redline before and I was using manual shifting. Something I also never did. The benz ruined the SRT 8 but I wonder if the surge in prolonged rpm had anything to do with ruining my window or if just a coincidence.

Tried the fuse pull last night to see if I that would reset the module but didnt work so left the window open all night parked it close against a wall and crawled out the passenger.

Either way when I took the car to benz and told them to do the update, the service guy yells to the other guy " Ive never heard of an update fixing a dead window" and chuckled. I got them to remove the 2 hours diagnostic and just charge me 0.5hrs for the update. I had to say I will pay for the update even if it does not work.

4hrs later I got a call that the update actually worked! those were the exact words of the service rep. Thanks everyone and especially Konigstiger. Really saved me some money and taught those guys at the dealership something. I did print the bulletin and they took a copy.

maniekS500

My repair was done in the same way. Service guy said "no way after firmware upgrade you will pay for new door ECU". Was very disappointed when after 30mins of SD connected and flashed driver door ecu window run smooth down then up
Thank you for sharing Service Bulletin - they (official dealer) had access to this document, but prefer to charge for ECU replacement (500EUR) than 0.5hr of labor (50EUR).

konigstiger

Whip Whippenten

Thanks for this..... any idea of how long it should take a dealer to perform this update? And perhaps the proper language to relay to the dealer? Because it sounds like mine is doing just this.. the rear passenger window and shade do nothing from either the switch on the door or from the driver seat. I was just about to explore fuses boxes but it seems that would be fruitless.

konigstiger

Provide copy of attached bulletin if, in fact, this is your problem dealer's minimum per hour labor rate should apply - independent should be cheaper.

604benz

I just had my control module software flashed, drivers window works again.
Took my indi tech over an hour as he was trying to attempt to do the software update online, it wouldn't let him, he tried it offline and it worked.

Raja Sharma

no click when pressing button

firstly check from driver switch panel that all other windows and mirrors operate ok

if yes then unlikely to be a fuse or switch.
for peace of mind check fuses which are located on both side panels by each front doors

door card removal....check you tube
before you do this see if your remote key will open and close the windows

outside of car lock doors with remote
then unlock and hold unlock button if all windows go down except driver door then the switch is probably ok it is likely to be the driver door control module...a relay in the module has probably failed known as a dcm door control module - approx £200 inc. vat from MB
2 years warranty...
prices vary on ebay.

the dcm is a known fault and the replacement in an upgraded part and mine did not require programming...my s class is a 2006 w221



the window motor have been know to fail but unlikely......remove/swap front passenger one and test

realflash

Thanks for PDF, konigstiger. That helped me persuade the tech that would listen to have a go, and it's fixed. Two other companies that said "No, it'll be your motor", and "No, it'll be the door ECU gone" didn't get my business.

George993

A very good thread, thanks, but one thing is still not clear. Facts:

1) Door software (which was probably originally designed by the same guy who came up with the famous Mercedes biodegradable wiring harness in the 90s) disables power window when temperature over 85C is sensed. When I scan the codes with an aftermarket scanner I get an error "Thermal Fuse Activated"

2) Mercedes recognized the "feature" and they apply a fix by installing a new software/firmware (which is not known to disable the power windows in high temperature).

Question: Can the Thermal Fuse be *deactivated* using the STAR system instead of upgrading the software? It sounds easier and safer for non-dealer repairs. Thanks

Steamnlove

I'm at dealer now with this same issue. They are quoting a $600 door control module saying the software update won't work. I hope I'm not getting scammed

George993

I would ask them not to fix the window, but to perform software update. When I talked to the dealer they told me they will first have to charge me $300 to troubleshoot the window before doing any repairs or software update, which I refused. So make it clear that we don't want troubleshooting and we don't want the window repair. We just want to have the latest software in our door and that's the only thing we want to pay for :-). (Book says 20 min work). If that does not work, we can start replacing door control modules etc

Dionis Guțul

Hi do you know how much it cost to update, and if this can be done by someone else not by dealer?

George993

It can be done by anyone with a proper equipment, but a local dealer refused to do it for me and a local Mercedes independent specialist refused to do it, so I got a proper equipment and did it myself. But if you find a cooperating dealer/independent, they should charge for 20 min (1/3 of the hourly rate they use), as per Mercedes estimate of the time to do it. Good luck!

Dionis Guțul

thanks for your reply. Could you please advise where I can by proper diagnostic tool which can do this. Also where are you located maybe you can help me as soon have a trip and dealer is charging me 350£ to investigate

BOTUS

you can't flash modules easily

very old versions of dealer tools circa 2012 had the software files
but that was killed off many years ago... when xentry connect came in, that was system killed off at the start 2019 and now up to date dealer kit will have the files on a local server - but they can not access them without an online handshake for approval to unlock the files and record the work was done

if you want to do at home in USA you could buy $3000 of autel or snap on kit and then pay for a days subscription to access the files from Mercedes for circa $50

or you drive to you main dealer and pay 1 hour to update all 4 doors

George993

I'm in Tampa Florida area, which judging by your Dionis pound referral is not even on the same continent as you :-)

The easiest, fastest and cheapest way is definitely to take it to a dealer and convince them to have the doors reprogrammed without spending several hundred dollars to have them first investigate, disassemble the doors and potentially damage something along the way or sell you brand new door controllers which you don't need.

Setting up the old STAR tool for this job by yourself is a pain (it took me months, but that also included dealing with faults in the tool hardware), as you need to find a working hardware (a used original or a working clone) and a right software (like from November 2012), and also to make sure that the s/w allows for OFF LINE PROGRAMMING and that you have the right Mercedes firmware images to install in the doors (but once it is set up, you can do anything to the car a dealer can do)

If you enjoy tinkering with computers and getting frustrated go ahead, but any sane person should either buy an already set up and working system from someone who can guarantee that it meets all the requirements and actually works, or just go to a dealer. Good luck with whatever option you choose.

As BOTUS says - the newer systems require access to a Mercedes account (which some people may re-sell for a short period of time) to work

Brad Roberts

I have a 2009 S550 (W221) and today, for the first time, my rear passenger window did not work or click from the driver's panel or the rear passenger panel. I reviewed this series of posts and decided to try to reset "the DCM" by pulling fuse 112. It turned out that my vehicle does not have a fuse in 112. I then reviewed the fuse document that was among my user manual-type info that came with the car. It listed four fuses for the windows: 70, 80, 81, 82; all are 40A. I pulled all four, waited five minutes, and placed them back in. Then all windows operated properly.

Weird but successful.