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Jun 14th, 2026
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Joined: May 2016
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Just Getting Started
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OP
Just Getting Started
Joined: May 2016
Posts: 51 |
2018 Roadster. Is there such a item as a front fog switch? Or is the same as the rear fog switch?
If different is there a part number?
Pictures?
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Joined: Feb 2016
Posts: 8,667 Likes: 408
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
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Hi Ed, As previously suggested the parts book as below is a little vague on this and not without errors.   Electrically the rear fog lights switch (34) is identical to the optional front one, and would guess they are one and the same part # E340037 as there isn't one specific to front foglight shown. Placing them one above the other could differentiate between front and rear as the illuminated icon would be the same.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Jul 2009
Posts: 1,127
Has a lot to Say!
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Has a lot to Say!
Joined: Jul 2009
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There definetely is a front fog switch available at MMC, as i bought one for my 3.7 some time ago.
Wasn´t easy to find thgough, but exists (somewhere)!
Sorry for not having the parts no at hand....
It doesn´t matter how fast it becomes, but how it becomes fast.   2015 Roadster 3.7
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Joined: May 2016
Posts: 51
Just Getting Started
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OP
Just Getting Started
Joined: May 2016
Posts: 51 |
What made it any different then the rear fog switch?
Ed
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Joined: Jul 2007
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Member of the Inner Circle
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Member of the Inner Circle
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It faces the other way!
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: May 2016
Posts: 51
Just Getting Started
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Just Getting Started
Joined: May 2016
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So you turned it 180 degrees???
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Joined: Sep 2011
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Member of the Inner Circle
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Member of the Inner Circle
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If you don't have aircon the aircon switch can be adapted as a front fog switch. I solved the problem by replacing the enter dashboard  
Peter ![[Linked Image]](http://bradley.it/public_images/drive.jpg)
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Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
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What made it any different then the rear fog switch?
Ed Ed, I think the front is simple, just on/off, however a rear fog has to pass through some sort of latching relay so that when the car ign is switched off it de-energises the switch, so that when the ign is turned on again the rear fog will not still be on
Jon M
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Joined: Feb 2016
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Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,667 Likes: 408 |
What made it any different then the rear fog switch?
Ed Ed, I think the front is simple, just on/off, however a rear fog has to pass through some sort of latching relay so that when the car ign is switched off it de-energises the switch, so that when the ign is turned on again the rear fog will not still be on As posted to Ed on another thread the switches are electrically the same, if indeed not exactly the same. As can be seen below both front and rear command the BCU to supply the matching foglight(s) whilst increasing their LED icon brightness, but only when headlights are on.  I suspect in each case it's just a momentary switch that as you suggest, latches the foglight on or off.
Last edited by Richard Wood; 04/04/19 01:01 PM.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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