automatic headlights don't work
#1
Thread Starter
Super Member
Joined: Dec 2002
Posts: 560
Likes: 1
From: FL
2000 S500 Brilliant Silver, 1990 BMW 735iL, 1971 Pontiac Trans Am 455 HO, 1976 Pontiac Formula 400
automatic headlights don't work
In my 2000 S500, I have always used the automatic headlights. They recently quit working. Neither the headlights nor taillights come on. I can't even get the regular headlight position to work.
Also, the weather seal around my drivers door mirror is broken. Could leakage from this be related? Also, is there any place I can buy the seal only vs. the whole mirror assembly?
Thanks
Also, the weather seal around my drivers door mirror is broken. Could leakage from this be related? Also, is there any place I can buy the seal only vs. the whole mirror assembly?
Thanks
#2
I am guessing you mean you have set the light switch to Auto which turns on headlights when it is dark. There is of course a light sensor which triggers the lights, so you might look at the health of the light sensor to see if it is working.
#3
MBWorld Fanatic!
Joined: Dec 2004
Posts: 3,063
Likes: 22
From: Tampa, FL
2005 S500 4-Matic, 1978 450SL
The sensor for your headlights is in front of your rear view mirror - look closely from outside of the ar, and you will see.
Yes, you can get the seal; take a look at the W220 S-Class Owners Start Here sticky at the top of this forum (there's a reason for the name); see post #21.
Yes, you can get the seal; take a look at the W220 S-Class Owners Start Here sticky at the top of this forum (there's a reason for the name); see post #21.
#4
Thread Starter
Super Member
Joined: Dec 2002
Posts: 560
Likes: 1
From: FL
2000 S500 Brilliant Silver, 1990 BMW 735iL, 1971 Pontiac Trans Am 455 HO, 1976 Pontiac Formula 400
Thanks. What about the fact that the headlights won't work even if you switch them on manually? Would it still be the sensor or maybe a fuse?
Thanks
Thanks
#5
MBWorld Fanatic!
Joined: Dec 2004
Posts: 3,063
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From: Tampa, FL
2005 S500 4-Matic, 1978 450SL
I just looked up the fuses for your headlights and tail lights - they are on an "Electronic Fuse" which is not a fuse in the typical sense of the word. It is actually an electronic circuit that trips when a fault occurs, and resets itself when the fault is cleared.
Try disconnecting the battery for about 15 to 30 minutes, then reconnecting it - see if the circuit resets. If it doesn't, then something is wrong - a short somewhere. It could also be the switch itself.
Are you having any other odd electrical problems?
After you disconnect the battery, you may need https://mbworld.org/forums/s-class-w...ml#post3682080
Try disconnecting the battery for about 15 to 30 minutes, then reconnecting it - see if the circuit resets. If it doesn't, then something is wrong - a short somewhere. It could also be the switch itself.
Are you having any other odd electrical problems?
After you disconnect the battery, you may need https://mbworld.org/forums/s-class-w...ml#post3682080
Last edited by Skylaw; 08-05-2010 at 11:57 PM.
#6
check setting using steering wheel controls
you do know that in your steering wheel instrument cluster catalog are features that control light settings also, you can set dimmer headlights timer, etc just scroll thru menus and check settings to be sure maybe changed setting with buttons on steering wheel
Last edited by la22bay; 08-06-2010 at 01:31 AM.
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#8
#9
Thread Starter
Super Member
Joined: Dec 2002
Posts: 560
Likes: 1
From: FL
2000 S500 Brilliant Silver, 1990 BMW 735iL, 1971 Pontiac Trans Am 455 HO, 1976 Pontiac Formula 400
It's not showing up as a malfunction on my cluster either.
I will first check the settings and then disconnect the battery if needed. Hopefully, that does it. I have had no other wierd electric things going on, just this out of the blue. I thought my broken drivers mirror seal might have something to do with it, but the friendly MB parts guy said no.
Thanks all!
I will first check the settings and then disconnect the battery if needed. Hopefully, that does it. I have had no other wierd electric things going on, just this out of the blue. I thought my broken drivers mirror seal might have something to do with it, but the friendly MB parts guy said no.
Thanks all!
#10
It's not showing up as a malfunction on my cluster either.
I will first check the settings and then disconnect the battery if needed. Hopefully, that does it. I have had no other wierd electric things going on, just this out of the blue. I thought my broken drivers mirror seal might have something to do with it, but the friendly MB parts guy said no.
Thanks all!
I will first check the settings and then disconnect the battery if needed. Hopefully, that does it. I have had no other wierd electric things going on, just this out of the blue. I thought my broken drivers mirror seal might have something to do with it, but the friendly MB parts guy said no.
Thanks all!
#11
Thread Starter
Super Member
Joined: Dec 2002
Posts: 560
Likes: 1
From: FL
2000 S500 Brilliant Silver, 1990 BMW 735iL, 1971 Pontiac Trans Am 455 HO, 1976 Pontiac Formula 400
I figured it out. I have a message regarding right turn signal out(in mirror) that is preventing me fom easily going through the menu through the steering wheel. One day when I was trying, I must have gotten into the menu and turned off the auto. setting.
I turned it back on. Duh.
I turned it back on. Duh.