Engineering Mode of Middle Screen
Senior Member
Joined: Aug 2020
Posts: 256
Likes: 119
From: Florida
S550
I only know the steps for 2014-2017 cars... Not sure if 2018+ vehicles have a different process.
Here are the steps if I remember correctly:
1. Press the "Vehicle Settings" button in the center console.
2. Once that tab is open, pull the infotainment control-*** backwards once. ("System Settings" should be highlighted)
3. Once highlighted, push the *** to the left (don't twist); hold it in that position for a few seconds.
4. The Engineering Screen should appear.
Here are the steps if I remember correctly:
1. Press the "Vehicle Settings" button in the center console.
2. Once that tab is open, pull the infotainment control-*** backwards once. ("System Settings" should be highlighted)
3. Once highlighted, push the *** to the left (don't twist); hold it in that position for a few seconds.
4. The Engineering Screen should appear.
MBWorld Fanatic!
Joined: May 2009
Posts: 1,850
Likes: 56
From: New York
2025 Range Rover, 2022 BMW M850 , 2017 MB E400 Coupe
Try to do as he says. It is 2017 E class, but I think it's the new version of MBUX and should work for 2018 and up S class. Try it.
P.S. I just tried it on my car. Instead of Setting press and hold Vehicle for about 10 sec. and you'll be in Dealer's mode. Scroll down and press End to get out.
Hope it helps.
P.S. I just tried it on my car. Instead of Setting press and hold Vehicle for about 10 sec. and you'll be in Dealer's mode. Scroll down and press End to get out.
Hope it helps.
Last edited by aeggroup; Sep 2, 2022 at 10:09 AM.
Junior Member
Joined: Feb 2022
Posts: 47
Likes: 6
2005 S-500
Try to do as he says. It is 2017 E class, but I think it's the new version of MBUX and should work for 2018 and up S class. Try it.
https://www.youtube.com/watch?v=RLi6-zvhSGQ
P.S. I just tried it on my car. Instead of Setting press and hold Vehicle for about 10 sec. and you'll be in Dealer's mode. Scroll down and press End to get out.
Hope it helps.
https://www.youtube.com/watch?v=RLi6-zvhSGQ
P.S. I just tried it on my car. Instead of Setting press and hold Vehicle for about 10 sec. and you'll be in Dealer's mode. Scroll down and press End to get out.
Hope it helps.
