Automatic headlight sensor always on - MBWorld.org Forums

Go Back  MBWorld.org Forums > Mercedes-Benz Sedans > C-Class (W203)
Automatic headlight sensor always on > Automatic headlight sensor always on
Notices
C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Automatic headlight sensor always on

Reply

 
 
Old 11-07-2008, 11:27 AM
  #1
Member
Thread Starter
 
Join Date: May 2006
Location: Los Angeles
Posts: 109
Thanks: 0
Thanked 0 Times in 0 Posts
2005 clk320 cabriolet
Automatic headlight sensor always on

I have my headlights set to automatic, and I noticed ever since I got my windshield replaced (yes with the rain sensor compatible), my headlights always stay on. Sure, I could manually switch them off but I'd like the installer to be responsible to fix it if he caused the problem. Do you guys think the windshield replacement is related to my problem?
vectorz is offline  
Reply With Quote
Old 11-07-2008, 12:28 PM
  #2
Super Member
 
Cintoman's Avatar
 
Join Date: May 2006
Location: Cumberland, RI U.S.A.
Posts: 540
Thanks: 0
Thanked 1 Time in 1 Post
2005 C230WZ SS Capri Blue/Ash
Hi vectorz,

From what I understand, the light sensor is not on the windshield, but rather in between the hood vents at the top of the hood. It's a rounded black plastic piece between the windshield washer nozzles. I highlighted it in the attached picture. Maybe when they replaced the windshield they may have hit or damaged this sensor.

I'd try cleaning it first just to be sure it's not dirty.
Attached Thumbnails Automatic headlight sensor always on-light-sensor.jpg  
Cintoman is offline  
Reply With Quote
Old 11-07-2008, 12:29 PM
  #3
Member
Thread Starter
 
Join Date: May 2006
Location: Los Angeles
Posts: 109
Thanks: 0
Thanked 0 Times in 0 Posts
2005 clk320 cabriolet
Wow, ok. Thanks for clearing that up. I'll investigate further before I blame them
vectorz is offline  
Reply With Quote
Old 11-09-2008, 02:31 PM
  #4
Super Member
 
dbvolz's Avatar
 
Join Date: Oct 2006
Location: FL - LA - Berlin
Posts: 537
Thanks: 0
Thanked 0 Times in 0 Posts
The Benz is gone...
Have you tried turning the constant function off in your dash menu? The guy might have accidentally tripped it or something...?
dbvolz is offline  
Reply With Quote
Old 11-09-2008, 03:03 PM
  #5
MBWorld Fanatic!
 
acr2001's Avatar
 
Join Date: Nov 2007
Location: NYC
Posts: 2,078
Thanks: 0
Thanked 0 Times in 0 Posts
2012 C300 4Matic
I mean no disrespect, but Cintoman is absolutely 100% wrong. The sensor he is referring to is a sun position sensor for the climate control unit. On vehicles with the lower end climate control system it is simply a black cover that serves no purpose. The light sensor is indeed mounted on the windshield behind the rear view mirror (the rain sensor is in this same area).

I wish the misinformation on these forums would stop.


Originally Posted by Cintoman View Post
Hi vectorz,

From what I understand, the light sensor is not on the windshield, but rather in between the hood vents at the top of the hood. It's a rounded black plastic piece between the windshield washer nozzles. I highlighted it in the attached picture. Maybe when they replaced the windshield they may have hit or damaged this sensor.

I'd try cleaning it first just to be sure it's not dirty.
acr2001 is offline  
Reply With Quote
Old 11-09-2008, 06:44 PM
  #6
Senior Member
 
Join Date: Mar 2005
Location: New Jersey, USA
Posts: 309
Thanks: 0
Thanked 0 Times in 0 Posts
Black 04 C230 Kompressor SS
Also check the Daytime Running Light option on the computer. It might jst need to be reset to fully automatic.
Arn560 is offline  
Reply With Quote
Old 11-09-2008, 08:35 PM
  #7
MBWorld Fanatic!
 
Join Date: Jul 2005
Location: Sydney, Australia
Posts: 3,215
Thanks: 0
Thanked 1 Time in 1 Post
W203 slightly modified
Originally Posted by vectorz View Post
I have my headlights set to automatic, and I noticed ever since I got my windshield replaced (yes with the rain sensor compatible), my headlights always stay on. Sure, I could manually switch them off but I'd like the installer to be responsible to fix it if he caused the problem. Do you guys think the windshield replacement is related to my problem?
The people who replaced the glass did not attach the wire to the light sensor again. You will probably find that your rain sensor does not work either.

Remove the black plastic cover in the middle of the screen and see if anything looks wrong.
benzmodz is offline  
Reply With Quote
Old 11-09-2008, 11:38 PM
  #8
MBWorld Fanatic!
 
Join Date: Oct 2004
Location: NJ, NYC
Posts: 3,958
Thanks: 0
Thanked 11 Times in 10 Posts
Something Slow
since everyone one is talking about rain sensor and Running lights i have a questions for people with a 2005 C Class and up.... is it true in order for the Locator Lights to work you must leave the Headlamp switch in Auto Position? and Turn on in Cluster menu? True or False?

i have a 2001 C320 and once the locator option is turn on in the Cluster Menu it works without turn the switch to AUTO. but ever since i upgraded to the 05+ Front SAM the only way the Locator lights work is with the Cluster menu on and the Swicth turned to Auto!...
WaveyKat is offline  
Reply With Quote
Old 11-10-2008, 12:30 AM
  #9
Super Member
 
dbvolz's Avatar
 
Join Date: Oct 2006
Location: FL - LA - Berlin
Posts: 537
Thanks: 0
Thanked 0 Times in 0 Posts
The Benz is gone...
Originally Posted by WaveyKat View Post
since everyone one is talking about rain sensor and Running lights i have a questions for people with a 2005 C Class and up.... is it true in order for the Locator Lights to work you must leave the Headlamp switch in Auto Position? and Turn on in Cluster menu? True or False?

i have a 2001 C320 and once the locator option is turn on in the Cluster Menu it works without turn the switch to AUTO. but ever since i upgraded to the 05+ Front SAM the only way the Locator lights work is with the Cluster menu on and the Swicth turned to Auto!...
Correct. If the switch isn't turned to auto, then the fog lights won't light up for the "locator" function. (which makes it even weirder that you can't have the fogs come on automatically with the headlights )
dbvolz is offline  
Reply With Quote
Old 11-11-2008, 01:26 AM
  #10
Member
Thread Starter
 
Join Date: May 2006
Location: Los Angeles
Posts: 109
Thanks: 0
Thanked 0 Times in 0 Posts
2005 clk320 cabriolet
Guys, thanks for the heads up. I double checked the panel connected to the rear view mirror and everything looks connected properly. Can a bad glass panel cause this?
vectorz is offline  
Reply With Quote
Old 11-11-2008, 07:40 PM
  #11
Newbie
 
Join Date: Jul 2008
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
2005 Obsidian Black C180 Kompressor - Elegance with Sports Pack
[QUOTE=dbvolz;3158413]Have you tried turning the constant function off in your dash menu?QUOTE]

Did you check this?
DRAD-81 is offline  
Reply With Quote
 
 
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
EuroDriverSD
C-Class (W203)
2
09-14-2015 10:15 AM
ajp3
SL-Class (R129)
0
09-09-2015 10:11 PM
Captincvmn
GL Class (X164)
1
09-09-2015 12:04 AM
angela12hickman
E-Class (W210)
3
09-07-2015 10:55 PM
marc hanna
Mercedes Vehicles
0
09-02-2015 09:16 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:19 AM.


Copyright 2001-2012 InternetBrands, Inc. / MBWorld.org. All Rights Reserved. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: