S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

3rd brake light not working. Help!

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Old Oct 13, 2010 | 11:41 PM
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pwrofjoe's Avatar
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From: Woodland Hills, CA
2004 White S430
3rd brake light not working. Help!

Hi guys,

I'm having an issue with my 3rd brake light. I recently had disconnected it so that I could remove the stock subwoofer. When I reconnected the brake light, it does not work. I thought it was the actual light, so I bought a new one from the dealership, installed it, and still not working. Interestingly, when I apply the brake on my car, a soft clicking can be heard in the rear of the car behind the driver side headrest. Anyone know what that is? My guess is that it's related to the brake light being out. Also, I wanted to check the fuse to see if that is what the problem is, but I do not know where the fuse box is, nor do I know which fuse to check. Any help would really be appreciated!

Thanks guys, you have always been very helpful.
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Old Oct 14, 2010 | 05:40 AM
  #2  
Viet_Amg408's Avatar
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Pinto
There's no fuse for center rear mount brake light circuit.. did you check make sure you didn't reverse side connector?
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Old Oct 14, 2010 | 10:45 AM
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pwrofjoe's Avatar
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From: Woodland Hills, CA
2004 White S430
Originally Posted by Viet_Amg408
There's no fuse for center rear mount brake light circuit.. did you check make sure you didn't reverse side connector?
I'm sorry, but what is the side connector?
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Old Oct 16, 2010 | 09:00 PM
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From: Woodland Hills, CA
2004 White S430
Originally Posted by Viet_Amg408
There's no fuse for center rear mount brake light circuit.. did you check make sure you didn't reverse side connector?
Thank you! That was it!!!!
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Old Feb 19, 2013 | 02:13 PM
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Elmer.in.TN's Avatar
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2000 s430
thanks

Thanks to pwrofjoe for starting the thread and many thanks to Viet_Amg408 for the answer.

Elmer
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Old Jul 19, 2023 | 09:47 PM
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W220 S350
Hi there, I’m trying to remove the 3rd Brakelight from my W220 but am struggling to undo the electrical connect. Did you pull your plug straight off or is there a technique to removing the plug. Regards. Robert
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