12V sockets
Thread Starter
Junior Member
Joined: Sep 2025
Posts: 26
Likes: 5
W206 220d
12V sockets
So far I am able to find only a single 12V (car lighter) socket that is placed on the passenger side, in the front passenger footwell. I looked in the trunk and in the central console in the back, but nothing... Is this possible, to have only a single one? I was expecting at least one more in the trunk.
Also, is this 12V socket always on? Or it shuts down eventually after 10-20 mins after car starts shutting down electronics?
Also, is this 12V socket always on? Or it shuts down eventually after 10-20 mins after car starts shutting down electronics?
Member
Joined: Jun 2025
Posts: 88
Likes: 20
From: SoCal, USA
C300
Well, you can plug a dash cam into it, so I would assume it will stay on as long as the car is running. I think it turns off when the car is turned off. When I plug a car vacuum into it, I have to turn on the a.c. to get it to operate.
Senior Member
Joined: Jun 2022
Posts: 376
Likes: 115
From: SFV
2025 C300
So far I am able to find only a single 12V (car lighter) socket that is placed on the passenger side, in the front passenger footwell. I looked in the trunk and in the central console in the back, but nothing... Is this possible, to have only a single one? I was expecting at least one more in the trunk.
Also, is this 12V socket always on? Or it shuts down eventually after 10-20 mins after car starts shutting down electronics?
Also, is this 12V socket always on? Or it shuts down eventually after 10-20 mins after car starts shutting down electronics?
Junior Member
Joined: May 2015
Posts: 25
Likes: 0
From: N. Myrtle Beach, SC
2015 GLK350 108k miles2008 clk350 Cab 180k miles. 1998 E300TD 237k miles
Rain sensor power to dashcam
So far I am able to find only a single 12V (car lighter) socket that is placed on the passenger side, in the front passenger footwell. I looked in the trunk and in the central console in the back, but nothing... Is this possible, to have only a single one? I was expecting at least one more in the trunk.
Also, is this 12V socket always on? Or it shuts down eventually after 10-20 mins after car starts shutting down electronics?
Also, is this 12V socket always on? Or it shuts down eventually after 10-20 mins after car starts shutting down electronics?
Last edited by Shrumsjs; Mar 20, 2026 at 09:34 PM.
