HELP! Need an electrical engineer for a second opinion
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From: Dunstable, ,Ma
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HELP! Need an electrical engineer for a second opinion
Can someone who is good with wiring pm me your email for a diagram and a second opinion on figuring out this wirring harness that i got?
Would be greatly appreciated!
Would be greatly appreciated!
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From: Dunstable, ,Ma
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so out of all the wiring that i have i have a loose wire that has stripped ends( marked as G)...i am not sure where it goes...my intuition tells me that if i connect F to G and then splice G into oem fog light wiring then this will act as a trigger to the switch(B) and turn additional 2 fog lights C+D hence resulting in 2 OEM fogs ON and two additional fogs C+D ON...does that makes sense?
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I was (am) a bit confused as you describe a wire (G) with both ends stripped, but in the diagram you show wire G with a male connetor on one end - I assume the other end is stripped.
I believe what this is for is to turn off the foglights when you switch your high beams on. I haven't wired up fogs on a Mercedes, but have on a few other cars and this has been the case. Regardless if this is true or not, from your diagram I would say your loose wire (G) connects to the wire labelled 'to closest headlight' and is an extension wire to the closest headlight. Hope that helps.
Edit: If by 'headlight' in your diagram you mean 'foglight', then yes your assumption above is correct and it is for turning on the foglights. The switch is a relay to pass the high current required to the fog's.
I believe what this is for is to turn off the foglights when you switch your high beams on. I haven't wired up fogs on a Mercedes, but have on a few other cars and this has been the case. Regardless if this is true or not, from your diagram I would say your loose wire (G) connects to the wire labelled 'to closest headlight' and is an extension wire to the closest headlight. Hope that helps.
Edit: If by 'headlight' in your diagram you mean 'foglight', then yes your assumption above is correct and it is for turning on the foglights. The switch is a relay to pass the high current required to the fog's.
Last edited by mtnman82; Apr 29, 2011 at 02:29 PM.
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From: Dunstable, ,Ma
Nowhere ...Fast
I was (am) a bit confused as you describe a wire (G) with both ends stripped, but in the diagram you show wire G with a male connetor on one end - I assume the other end is stripped.
I believe what this is for is to turn off the foglights when you switch your high beams on. I haven't wired up fogs on a Mercedes, but have on a few other cars and this has been the case. Regardless is this is true or not, from your diagram I would say your loose wire (G) connects to the wire labelled 'to closest headlight' and is an extension wire to the closest headlight. Hope that helps.
I believe what this is for is to turn off the foglights when you switch your high beams on. I haven't wired up fogs on a Mercedes, but have on a few other cars and this has been the case. Regardless is this is true or not, from your diagram I would say your loose wire (G) connects to the wire labelled 'to closest headlight' and is an extension wire to the closest headlight. Hope that helps.
you are correct wire G does have a male plug on one side and the other side is stripped( was wrapped in electrical tape)...so my thinking is correct then, or at least in the right direction?
The problem that i cant tell whther that says "closest headlight" or "foglight" its a paper label that has been weathered...but clearly reads light and something before that. I am also assuming that try to color match the stripped ends of G to the fog light lights ( but in reality shouldnt make much of a difference since it acts as a trigger connection <--- correct?)
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From: Dunstable, ,Ma
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i was assuming " to switch off the foglights when the hi beams are on" function is handled by the existing fog light connection?
hence my assumption that the stripped wire G should connect to the fog light line and not the headlight, since the headlight (lo beams) stay on when switched to high beams anyways and its the fogs that turn off
hence my assumption that the stripped wire G should connect to the fog light line and not the headlight, since the headlight (lo beams) stay on when switched to high beams anyways and its the fogs that turn off
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'16 E350, gone: '03 c230k
The 'switch' (B) in your diagram, is it just a box with wires coming out of it or does it have a physical switch on it?
This setup is to ADD a second set of foglights to a car with a set of existing foglights? If so, and part (B) does not have a physical switch on it (meaning it is indeed a relay of sorts) then I would say yes it goes to an existing foglight and just triggers the relay to turn on the additional fogs.
edit: apparently we were both typing at the same time . My bit about switching the fog's off when hibeams are on was in the case of installing foglights when there previously weren;t any. You're correct - if you all ready have a set then this function should all ready be in place.
This setup is to ADD a second set of foglights to a car with a set of existing foglights? If so, and part (B) does not have a physical switch on it (meaning it is indeed a relay of sorts) then I would say yes it goes to an existing foglight and just triggers the relay to turn on the additional fogs.
edit: apparently we were both typing at the same time
. My bit about switching the fog's off when hibeams are on was in the case of installing foglights when there previously weren;t any. You're correct - if you all ready have a set then this function should all ready be in place.
Last edited by mtnman82; Apr 29, 2011 at 02:40 PM.
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"The Beast" C280 4MATIC, 2007 AUDI A4 S-Line Black on Black
i was assuming " to switch off the foglights when the hi beams are on" function is handled by the existing fog light connection?
hence my assumption that the stripped wire G should connect to the fog light line and not the headlight, since the headlight (lo beams) stay on when switched to high beams anyways and its the fogs that turn off
hence my assumption that the stripped wire G should connect to the fog light line and not the headlight, since the headlight (lo beams) stay on when switched to high beams anyways and its the fogs that turn off
You would be correct my friend with functionality and which wires to tap into, however, another option is to tap into your corner lights which stay "ON" wether low beam or High Beam, so you would actually be running High's with one set of Fogs on as well. And I cant remember If you have the euro strips, but if you do, well than you got "hot wires just waiting to be tapped!"
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From: Dunstable, ,Ma
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The 'switch' (B) in your diagram, is it just a box with wires coming out of it or does it have a physical switch on it?
This setup is to ADD a second set of foglights to a car with a set of existing foglights? If so, and part (B) does not have a physical switch on it (meaning it is indeed a relay of sorts) then I would say yes it goes to an existing foglight and just triggers the relay to turn on the additional fogs.
edit: apparently we were both typing at the same time . My bit about switching the fog's off when hibeams are on was in the case of installing foglights when there previously weren;t any. You're correct - if you all ready have a set then this function should all ready be in place.
This setup is to ADD a second set of foglights to a car with a set of existing foglights? If so, and part (B) does not have a physical switch on it (meaning it is indeed a relay of sorts) then I would say yes it goes to an existing foglight and just triggers the relay to turn on the additional fogs.
edit: apparently we were both typing at the same time
. My bit about switching the fog's off when hibeams are on was in the case of installing foglights when there previously weren;t any. You're correct - if you all ready have a set then this function should all ready be in place.Yup...its to have a quad fog set up...2 OEM and 2 aftermarket
This is great! Thank you for confirming this! Pheewww!
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From: Dunstable, ,Ma
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So the quad fog lights have been successfully installed! Taking the bumper to get re-painted this week will post pics of these later...
But i ended up wiring that "trigger" line to the side marker..no errors nothing...sweeeeet!
Edit: this is how they will look when the bumper comes back
But i ended up wiring that "trigger" line to the side marker..no errors nothing...sweeeeet!
Edit: this is how they will look when the bumper comes back
