Lightbulb mystery.....
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Joined: Mar 2007
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From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
Lightbulb mystery.....
At the carwash today, another GL450 owner asked this question: when does the bottom right rear bulb in the tailight assembly come on? The left one is the "rear fog light" and comes on when you move the light switch all the way to right and pull it out to the 2nd. stop but for the life of me I can't find any way to make that right bulb light up. Local cop stopped the other owner and said "you have a light out on the right side" He was traveling with the rear fog on so there was an obivious difference between the rear lights........there is a bulb on the right side.....cop's point was that Pa. inspection law requires that all original equipment exterior lights on a vehicle must be operable. Anybody have any info on this? I could not find anything in the manual......but there certainly is a bulb in there!
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From: Land of Magnolias and Mint Juleps
At the carwash today, another GL450 owner asked this question: when does the bottom right rear bulb in the tailight assembly come on? The left one is the "rear fog light" and comes on when you move the light switch all the way to right and pull it out to the 2nd. stop but for the life of me I can't find any way to make that right bulb light up. Local cop stopped the other owner and said "you have a light out on the right side" He was traveling with the rear fog on so there was an obivious difference between the rear lights........there is a bulb on the right side.....cop's point was that Pa. inspection law requires that all original equipment exterior lights on a vehicle must be operable. Anybody have any info on this? I could not find anything in the manual......but there certainly is a bulb in there!
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From: Bucks County PA
MB
I believe this is done primarily for foreign variants in order to leave the park light on overnight. In most cars the respective (street facing) side can be selected and uses front and rear light as an indicator so that other drivers don't hit you on those narrow streets.
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2011 E350 Cabriolet..White and Almond Mocha
I believe this is done primarily for foreign variants in order to leave the park light on overnight. In most cars the respective (street facing) side can be selected and uses front and rear light as an indicator so that other drivers don't hit you on those narrow streets.
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Joined: Sep 2005
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From: West Michigan
2007 E63
It's always been this way on MBs as far as the rear fog light goes. I read that the primary reason was for safety, as having both lights on for rear fogs would make it appear as the brake lights are on.
Rule of thumb with MB is that the driver's side only will light up for the rear fog (so in Europe it would be the right side that brightens).
Rule of thumb with MB is that the driver's side only will light up for the rear fog (so in Europe it would be the right side that brightens).
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MBWorld Fanatic!
Joined: Mar 2007
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From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
....so what you all seem to be saying is that in Euro models that bulb (the one on the passenger side) will light if you want it to but in our cars it does not?
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From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
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Out Of Control!!
Joined: Sep 2005
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From: West Michigan
2007 E63
Whatever side the steering wheel is, is the side that the rear fog light is.
RHD=right rear fog ONLY
LHD=left rear fog ONLY
Last edited by AsianML; Oct 9, 2007 at 05:22 PM.
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From: Albuquerque
'10 CL550, '12 GL550
The answer is don't be dumb and run rear fog lights unless you are driving in severe rain/snow/fog.
The bulb isn't going to come on because there's no wiring for it on the right side. The bulb is in the holder because it's cheaper than having two part numbers for each light unit.
The bulb isn't going to come on because there's no wiring for it on the right side. The bulb is in the holder because it's cheaper than having two part numbers for each light unit.
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From: Reno, Nevada
SL550, ML350, 66 Corvette
The answer is don't be dumb and run rear fog lights unless you are driving in severe rain/snow/fog.
The bulb isn't going to come on because there's no wiring for it on the right side. The bulb is in the holder because it's cheaper than having two part numbers for each light unit.
The bulb isn't going to come on because there's no wiring for it on the right side. The bulb is in the holder because it's cheaper than having two part numbers for each light unit.
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From: Albuquerque
'10 CL550, '12 GL550
MBWorld Fanatic!
Joined: Sep 2005
Posts: 6,192
Likes: 242
From: Albuquerque
'10 CL550, '12 GL550
