SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: Back Up LEDs

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Old Jul 27, 2012 | 02:32 PM
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2013 SL550, '06 Corvette Convertible
Back Up LEDs

Can someone check your reverse lights for me? When I put my SL into reverse the two outside LEDs on both the left and right sides come on. But it looks like there are four more LEDs in the center of the back up light that never come on. I've tried with and without lights on, no difference. I asked the dealer if this is normal, but he didn't know, and doesn't have another SL to compare to. Do all of your LEDs light when in reverse?
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Old Aug 2, 2012 | 02:37 PM
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Do you have a pic of what you are talking about? I have one i can compare it to.
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Old Aug 3, 2012 | 10:01 AM
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Pic

Picture attached.
Attached Thumbnails Back Up LEDs-img_0339.jpg  
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Old Aug 3, 2012 | 11:28 AM
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That's interesting. I never noticed that.
Attached Thumbnails Back Up LEDs-photo-26-.jpg  
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Old Aug 3, 2012 | 01:25 PM
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Thanks, at least I know it's not faulty! Would be nice to know what function the center lights or lenses serve.
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Old Aug 9, 2012 | 05:12 AM
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My best guess would be that the middle leds are used for the rear foglamp for cars sold in countries that have them as a requirement (e.g. EU countries)
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Old Aug 20, 2012 | 10:08 AM
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On the R231 SL550, keyless go is part of the P01 option package.
The Start/Stop button is on the dashboard to the right of the steering column.
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Old Aug 20, 2012 | 02:36 PM
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Those reverse lights look very odd?? Im surprised they just wouldnt stick them in the tail lights like 99.99999 percent of cars
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Old Aug 21, 2012 | 06:46 PM
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Originally Posted by Tim1048
Can someone check your reverse lights for me? When I put my SL into reverse the two outside LEDs on both the left and right sides come on. But it looks like there are four more LEDs in the center of the back up light that never come on. I've tried with and without lights on, no difference. I asked the dealer if this is normal, but he didn't know, and doesn't have another SL to compare to. Do all of your LEDs light when in reverse?
Mine are the same. I have no idea what the inner four lights are for.
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Old Aug 22, 2012 | 01:41 PM
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Originally Posted by Daytona-flyer
Mine are the same. I have no idea what the inner four lights are for.
See Post #6 above.
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Old Aug 23, 2012 | 06:07 AM
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Originally Posted by BillyD
See Post #6 above.
Rear fog lamps. What a novel idea.

Backing up into the garage on a foggy night made easy eh?
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Old Aug 23, 2012 | 01:24 PM
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Originally Posted by Daytona-flyer
Rear fog lamps. What a novel idea.

Backing up into the garage on a foggy night made easy eh?
Not exactly. All cars sold in the European Union are required by law to have a bright (same brightness as the stop lamps) RED tail light that
can be turned on in low visibility situations.
The idea is that when regular tail lights are too dimm for heavy fog, the Fog tail light can be switched on to warn oncoming cars.
I'm not 100% certain, but I think MB is using those center LED's for the fog tail light.
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Old Jun 9, 2013 | 02:25 AM
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removed

Last edited by impex4; Jun 12, 2013 at 02:24 AM.
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Old Jun 9, 2013 | 03:32 AM
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Originally Posted by impex4
Maybe they are IR for nighttime illumination?
The Backup LED's are placed in the center instead of the taillights to illuminate the area for the backup camera. Give it a try at night.

Not sure if you would need additional IR lights as the visible ones are quite bright.
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Old Jun 11, 2013 | 09:18 PM
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there are four led's that dont seem to light up...

Last edited by impex4; Jun 12, 2013 at 02:23 AM.
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Old Jun 12, 2013 | 07:05 AM
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Suggest you read post #12
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Old Jun 12, 2013 | 09:56 AM
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yes, it seems correct...

The rear fog lamp is located centrally between two trapezoidal exhaust tailpipes.

http://www.netcarshow.com/mercedes-benz/2013-sl-class/
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Old Jun 13, 2013 | 06:55 AM
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I did some research.

The switch for the rear fog lamps is to the left of the light switch. It's not on the US cars. Too bad, it would be great for tailgater at night.
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