2012 ML350 Command Error solved
08-18-2017, 03:02 PM
#1
2012 ML350 Command Error solved
Hi Guys
Since beginning of this year I was looking for the solution for my command system (which turn off and on itself and can not use any)
I will explain detailed symptom and every effort i did and finally the solution.
I am not mechanic but my engineering major helped me little bit to solve
So I hope this trick works for your situation too.
First of all, my car is 2012 ML350 so, it will be the W166 chassis, I am not sure this will work for the older version
1. What Happened
After I turn on my blue tooth (which I linked before) and plug in USB cable to charging my Samsung Note 3.
No problem was found before I unhooked the phone.
2. Symptom
Command screen keep on and off by itself and I can not control anything. Actually just few second at the beginning when it started then I can move knob,but back to freeze.
But funny thing was, when I turn off the command screen, and check my dash screen (I change the menu to navigation on that) it still shows my direction and street name on the screen.
So I guess navigation is still working but it does have problem to show on the command screen.
3. What I tried
I tried so many things which shows online
A. Check the fuse (unplug, wait certain time and plug back)
B. Disconnect battery ( I even discount 2ndary batter - EMB or something) and wait couple of hours - It only reset the clock
C. Even tried ECU reset - nothing happened.
D. Ask dealer, and they said I need $140 diagnosis test to find out - I said too much for check
E. Someone said online, maybe fiber optic issue - I don't have tools and I do not want to tried that much thing.
4. Find solution accidently
So, I almost forgot, but someday I just concern that why system keep start over and over.
For me it looks like kinda PC (Personal computer) symptom, when I insert wrong operation CD in the computer.
Then I tried to eject CD from the command system.
That was kinda tricky, because when hold the eject button, it does not work.
I push spontaneously every half second.
And walla!!
After CD ejected (The stupid CD which my wife's friend burned couple of music in) all works fine.
So I guess, wrong CD keep trying to run and system could not recognized.
But one more thing is, you have to have a same symptom I had to solve the issue.
Like screen powers on, when you turn off the screen still direction shows on DASH screen.
So try this CD eject trick and I hope it help you guys from ridiculous expensive charge to fix.
Good luck and drive safely
Since beginning of this year I was looking for the solution for my command system (which turn off and on itself and can not use any)
I will explain detailed symptom and every effort i did and finally the solution.
I am not mechanic but my engineering major helped me little bit to solve
So I hope this trick works for your situation too.
First of all, my car is 2012 ML350 so, it will be the W166 chassis, I am not sure this will work for the older version
1. What Happened
After I turn on my blue tooth (which I linked before) and plug in USB cable to charging my Samsung Note 3.
No problem was found before I unhooked the phone.
2. Symptom
Command screen keep on and off by itself and I can not control anything. Actually just few second at the beginning when it started then I can move knob,but back to freeze.
But funny thing was, when I turn off the command screen, and check my dash screen (I change the menu to navigation on that) it still shows my direction and street name on the screen.
So I guess navigation is still working but it does have problem to show on the command screen.
3. What I tried
I tried so many things which shows online
A. Check the fuse (unplug, wait certain time and plug back)
B. Disconnect battery ( I even discount 2ndary batter - EMB or something) and wait couple of hours - It only reset the clock
C. Even tried ECU reset - nothing happened.
D. Ask dealer, and they said I need $140 diagnosis test to find out - I said too much for check
E. Someone said online, maybe fiber optic issue - I don't have tools and I do not want to tried that much thing.
4. Find solution accidently
So, I almost forgot, but someday I just concern that why system keep start over and over.
For me it looks like kinda PC (Personal computer) symptom, when I insert wrong operation CD in the computer.
Then I tried to eject CD from the command system.
That was kinda tricky, because when hold the eject button, it does not work.
I push spontaneously every half second.
And walla!!
After CD ejected (The stupid CD which my wife's friend burned couple of music in) all works fine.
So I guess, wrong CD keep trying to run and system could not recognized.
But one more thing is, you have to have a same symptom I had to solve the issue.
Like screen powers on, when you turn off the screen still direction shows on DASH screen.
So try this CD eject trick and I hope it help you guys from ridiculous expensive charge to fix.
Good luck and drive safely
Last edited by jpntoys; 08-18-2017 at 03:06 PM.
The following 4 users liked this post by jpntoys:
02-13-2020, 09:18 PM
#2
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Join Date: Feb 2020
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ML350
Thank you!
Thank you for this! All of a sudden today this happened to mine, we tried resetting it and even took out the unit... My husband gave up and said we had to buy a new one, this one was fried. I was researching and researching and came by your post and asked my husband if he ever played a cd in the car. He thought I was nuts but went out, kept playing with the eject button until an old cd popped out and now it works!
03-25-2020, 08:52 PM
#3
Newbie
I just wanted to thank you for sharing your post. I own a 2012 ML 350 and I had the same issue as you stated. Turns out that when I bought the vehicle used 2 years ago there was a CD in it I did not know about. I followed your steps and it worked. My command control center is working normal now. Thank you again for sharing. You saved me $$$
Tracy
Tracy
12-08-2021, 11:29 AM
#5
Not sure why the Command Control on my wifes 2012 ML350 started to malfunction? After pulling fuses etc and reading thread after thread about different fixes, I came across jpntoys thread about removing the CD in the drive. I was able to eject the CD that had probably been in there for several years and Wha-Lah success!!! Thank you for sharing this post. Seems to have solved the issue, in addition to saving me time and money!
04-19-2024, 09:33 PM
#6
Hi Guys
Since beginning of this year I was looking for the solution for my command system (which turn off and on itself and can not use any)
I will explain detailed symptom and every effort i did and finally the solution.
I am not mechanic but my engineering major helped me little bit to solve
So I hope this trick works for your situation too.
First of all, my car is 2012 ML350 so, it will be the W166 chassis, I am not sure this will work for the older version
1. What Happened
After I turn on my blue tooth (which I linked before) and plug in USB cable to charging my Samsung Note 3.
No problem was found before I unhooked the phone.
2. Symptom
Command screen keep on and off by itself and I can not control anything. Actually just few second at the beginning when it started then I can move knob,but back to freeze.
But funny thing was, when I turn off the command screen, and check my dash screen (I change the menu to navigation on that) it still shows my direction and street name on the screen.
So I guess navigation is still working but it does have problem to show on the command screen.
3. What I tried
I tried so many things which shows online
A. Check the fuse (unplug, wait certain time and plug back)
B. Disconnect battery ( I even discount 2ndary batter - EMB or something) and wait couple of hours - It only reset the clock
C. Even tried ECU reset - nothing happened.
D. Ask dealer, and they said I need $140 diagnosis test to find out - I said too much for check
E. Someone said online, maybe fiber optic issue - I don't have tools and I do not want to tried that much thing.
4. Find solution accidently
So, I almost forgot, but someday I just concern that why system keep start over and over.
For me it looks like kinda PC (Personal computer) symptom, when I insert wrong operation CD in the computer.
Then I tried to eject CD from the command system.
That was kinda tricky, because when hold the eject button, it does not work.
I push spontaneously every half second.
And walla!!
After CD ejected (The stupid CD which my wife's friend burned couple of music in) all works fine.
So I guess, wrong CD keep trying to run and system could not recognized.
But one more thing is, you have to have a same symptom I had to solve the issue.
Like screen powers on, when you turn off the screen still direction shows on DASH screen.
So try this CD eject trick and I hope it help you guys from ridiculous expensive charge to fix.
Good luck and drive safely
Since beginning of this year I was looking for the solution for my command system (which turn off and on itself and can not use any)
I will explain detailed symptom and every effort i did and finally the solution.
I am not mechanic but my engineering major helped me little bit to solve
So I hope this trick works for your situation too.
First of all, my car is 2012 ML350 so, it will be the W166 chassis, I am not sure this will work for the older version
1. What Happened
After I turn on my blue tooth (which I linked before) and plug in USB cable to charging my Samsung Note 3.
No problem was found before I unhooked the phone.
2. Symptom
Command screen keep on and off by itself and I can not control anything. Actually just few second at the beginning when it started then I can move knob,but back to freeze.
But funny thing was, when I turn off the command screen, and check my dash screen (I change the menu to navigation on that) it still shows my direction and street name on the screen.
So I guess navigation is still working but it does have problem to show on the command screen.
3. What I tried
I tried so many things which shows online
A. Check the fuse (unplug, wait certain time and plug back)
B. Disconnect battery ( I even discount 2ndary batter - EMB or something) and wait couple of hours - It only reset the clock
C. Even tried ECU reset - nothing happened.
D. Ask dealer, and they said I need $140 diagnosis test to find out - I said too much for check
E. Someone said online, maybe fiber optic issue - I don't have tools and I do not want to tried that much thing.
4. Find solution accidently
So, I almost forgot, but someday I just concern that why system keep start over and over.
For me it looks like kinda PC (Personal computer) symptom, when I insert wrong operation CD in the computer.
Then I tried to eject CD from the command system.
That was kinda tricky, because when hold the eject button, it does not work.
I push spontaneously every half second.
And walla!!
After CD ejected (The stupid CD which my wife's friend burned couple of music in) all works fine.
So I guess, wrong CD keep trying to run and system could not recognized.
But one more thing is, you have to have a same symptom I had to solve the issue.
Like screen powers on, when you turn off the screen still direction shows on DASH screen.
So try this CD eject trick and I hope it help you guys from ridiculous expensive charge to fix.
Good luck and drive safely
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04-21-2024, 11:17 PM
#8
Same thing happened to my wifes a couple years back! Ended up there was a CD in the drive. Once we were able to get the disc out. Everything went back to normal. I cant believe MB doesnt tell people about this possible fix!!! We recently got rid of the vehicle and are now onto a 2023 GL450. Cant wait to try to diagnose those electrical nightmares!!! Til next time. Cheers!
