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How-To: The Hidden Menus
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Joined: Feb 2012
Posts: 295
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From: PNW
2010 E550 coupe
How-To: The Hidden Menus
This info is in various places but I took the time tonight to use the Snapguide app on my phone to create some easy to follow how-tos.
Engineering Mode and Engineering Settings:
http://snapguide.com/guides/enter-th...on-a-mercedes/
Service Menu and Dyno Mode:
http://snapguide.com/guides/enter-se...cedes-e-class/
Engineering Mode and Engineering Settings:
http://snapguide.com/guides/enter-th...on-a-mercedes/
Service Menu and Dyno Mode:
http://snapguide.com/guides/enter-se...cedes-e-class/
Thread Starter
Senior Member
Joined: Feb 2012
Posts: 295
Likes: 3
From: PNW
2010 E550 coupe
Thread Starter
Senior Member
Joined: Feb 2012
Posts: 295
Likes: 3
From: PNW
2010 E550 coupe
On a 2012 C class loaner I was able to change the clock display style to a different one but other than that, nothing terribly interesting other than some Internet connectivity settings that I was not able to figure out.
You can go into these modes and scroll around without changing anything if you're curious. If you do decide to change things, make sure you have some idea of what you're doing and what the original value was. I've noticed that changes tend not to take effect unless you perform a reset rather than just exiting the menu.
The Service Menu/Dyno Mode is obviously more useful if you intend to dyno test your car on a rig.
Last edited by dsayed; Jul 10, 2012 at 06:21 PM.
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Joined: Jul 2009
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2020 E350 4Matic
Is it safe to assume that is what it is? Temps have been in the upper 80s for a few days now, and I have not seen it repeated since the hotter days.
Todd
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Senior Member
Joined: Feb 2012
Posts: 295
Likes: 3
From: PNW
2010 E550 coupe
Interesting you mention this . . . I have experienced CDs not playing in my brand new 2012 E350, but attributed it to the 100+ degree heat we have been having this month here in Virginia.
Is it safe to assume that is what it is? Temps have been in the upper 80s for a few days now, and I have not seen it repeated since the hotter days.
Todd
Is it safe to assume that is what it is? Temps have been in the upper 80s for a few days now, and I have not seen it repeated since the hotter days.
Todd
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Joined: Oct 2013
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2010 E350 Sport
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Joined: Mar 2013
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e350
In the case of the 2010 model, you can enable Bluetooth audio streaming through the Engineering Menu. You can also enable heating/cooling displays on the COMAND screen. There is a wealth of other information, some of which is interesting and some of which is useful if you are technically minded. For instance, I have been able to see some trouble codes that have been logged which may explain why my system loses audio sporadically (it may be temperature related).
On a 2012 C class loaner I was able to change the clock display style to a different one but other than that, nothing terribly interesting other than some Internet connectivity settings that I was not able to figure out.
You can go into these modes and scroll around without changing anything if you're curious. If you do decide to change things, make sure you have some idea of what you're doing and what the original value was. I've noticed that changes tend not to take effect unless you perform a reset rather than just exiting the menu.
The Service Menu/Dyno Mode is obviously more useful if you intend to dyno test your car on a rig.
On a 2012 C class loaner I was able to change the clock display style to a different one but other than that, nothing terribly interesting other than some Internet connectivity settings that I was not able to figure out.
You can go into these modes and scroll around without changing anything if you're curious. If you do decide to change things, make sure you have some idea of what you're doing and what the original value was. I've noticed that changes tend not to take effect unless you perform a reset rather than just exiting the menu.
The Service Menu/Dyno Mode is obviously more useful if you intend to dyno test your car on a rig.
Never mind, I found it. Thanks.
Last edited by timurik; Dec 4, 2013 at 05:02 PM.
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2023 XC60 PHEV, 2023 XC40 BEV
Has anyone found documentation of these menus, the functions and the recommended settings? I have been looking all over ... I suspect they are limited to the engineering/technical manuals that are currently not available to the public. 
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Joined: May 2014
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2011 C300 4Matic Sport (W204 Euro Version)
Great tutorial!
Quick question.....I've heard there is a way to shut off the video lock while driving through engineering mode and a "secret" menu. Are you familiar with this?
If so, how do I access this menu?
Thanks in advance!
Quick question.....I've heard there is a way to shut off the video lock while driving through engineering mode and a "secret" menu. Are you familiar with this?
If so, how do I access this menu?
Thanks in advance!
Thread Starter
Senior Member
Joined: Feb 2012
Posts: 295
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From: PNW
2010 E550 coupe
I am not aware of a way to do this through menus. I believe it requires an aftermarket unit to bypass the lock.
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Senior Member
Joined: Feb 2012
Posts: 295
Likes: 3
From: PNW
2010 E550 coupe
Works with my 5s. Perhaps the head unit needs updated firmware? I have not updated the head unit since I got the car in 2012 and it has worked with an iPhone 4s and now 5s.
