Car stuck in "night mode"
Thread Starter
MBWorld Fanatic!
Joined: Dec 2001
Posts: 3,430
Likes: 187
From: USA
W140 Mercedes S350, W221 S550 sport
The display it set to auto but not matter I do, the nav screen, speedo etc. stays dark (the car thinks its dark out) the headlights are on during the day, when the DRL's should be on instead. I've started and stopped, locked and unlocked the car multiple times and it won't get out of night mode. If I go to vehicle settings and click display and take it off auto mode and press day mode it will go to day mode for nav and speedo, but the car and the headlights still thinks it's night time.
I did a reset on the same screen where you select day/auto/night and it didn't fix anything. I also didn't think ahead of time that this would clear all the songs in my music register and everything I put in there, dammit.
Ideas?
I did a reset on the same screen where you select day/auto/night and it didn't fix anything. I also didn't think ahead of time that this would clear all the songs in my music register and everything I put in there, dammit.
Ideas?
Thread Starter
MBWorld Fanatic!
Joined: Dec 2001
Posts: 3,430
Likes: 187
From: USA
W140 Mercedes S350, W221 S550 sport
Thanks, I wish that was the case. I always have it set on auto and its still on auto. I did try all other modes and the DRL's will not come on no matter what. The car still thinks it's in night mode because if I go back to the display and then hit auto it makes everything dark again.
The car is garage kept and normally when starting it in the garage the display black (night mode) but as soon as I pull into the sun it switches. No matter what I do in the sun it will not come off night mode.
The car is garage kept and normally when starting it in the garage the display black (night mode) but as soon as I pull into the sun it switches. No matter what I do in the sun it will not come off night mode.
Last edited by Jason B; Mar 18, 2015 at 04:01 PM.
Member
Joined: Nov 2012
Posts: 220
Likes: 2
From: New England
2006 S430 4Matic
Sounds like a sun sensor problem. The sensor is located in the center of the grill with the windshield washer sprayers. It detects the sun and its position in relation to the car. It also has a significant influence on the heating and cooling of the car because the system adjusts the airflow based on where the sun is. Check this sensor to make sure it is not blocked by something, or painted over, and that it has not come un-mounted. If everything is OK mechanically have it checked with DAS to see if it is OK electrically.
