Rear FogLight discovery
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MBWorld Fanatic!
Joined: Jun 2008
Posts: 2,073
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From: San Francisco, CA
2017 E300
Rear FogLight discovery
Kinda stupid, but before i bought my C350, i was always laughing in my head about the poor mercedes reliability, especially in the electronics field. I always scoffed at the fact that one rear light would be brighter than the other. 
but i just found out tonight that its an option to turn on the "rear fog light" which makes the driver's side red lamp just a tad brighter for cars to follow in heavy fog. just thought this was interesting. very easy to think its a flaw if you dont own a benz
but i just found out tonight that its an option to turn on the "rear fog light" which makes the driver's side red lamp just a tad brighter for cars to follow in heavy fog. just thought this was interesting. very easy to think its a flaw if you dont own a benz
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Joined: Oct 2008
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From: Atlanta, GA
2008 C300 Sport 6 Speed Manual, 1953 Chevy Bel-Air, 2015 Audi allroad, 1963 Chevy Apache
Don't feel too bad, I was there with you for many years myself. Your salesman really should have run through all those things with you on delivery. 
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Joined: Dec 2006
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From: Europe
223.168 & 213.012 & 906.633 & 214.005
Are these really this new in the US? I believe my first MB that had this rear fog light on the driver's side was a W123. Those have been a mandatory feature for all cars in Europe for quite some time.
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You see it all the time, so many idiots drive around LA with fog lights.
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From: Long Island, New York
2013 C300 Sport Black Darth V3.0
Not part of the US DOT standard. I had an aftermarket one on my SAAB 900 in the early 80's. If I remember right I also had it on my '76 911, I only had the car two weeks before it was stolen from my driveway.
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From: Ohio
X3 and 2012 C coming soon
My 1997 Saab had it, and so does my Volvo 850. The 850 is capable of having it on both sides with some trimming of plastic and adding a bulb. Makes playing with tailgaters more entertaining.
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Joined: Jul 2008
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From: GTA North
2011 BMW 335xi titanium silver.
My previous Audi A4 had it, I probably used it a dozen or so times; mostly in powder snow conditions.
If I was in the middle lane with law enforcement slightly ahead of me, I would flash the rear fogs to warn any cars 'attempting to pass' in the passing lane.
If I was in the middle lane with law enforcement slightly ahead of me, I would flash the rear fogs to warn any cars 'attempting to pass' in the passing lane.
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Joined: Feb 2004
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From: SEATTLE WASHINGTON USA
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
Rear fog
The W204 uses the inner half of the left taillight which has a 21W or so bulb running on reduced (half?) voltage to provide the same brightness as the left half of the light and when the switch is activated it is stepped up to 12V. On right-hand drive cars the car's software activates the right side light instead, the same way.
Super Member
Joined: Sep 2005
Posts: 511
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From: Nuevo México
2005 C230K Sport Sedan, 6 speed manual
European cars seem to be the only cars offered in the US with the rear foglight feature. However, some of them have the feature disabled for the US market. Cars that have the rear foglight here:
1. Mercedes (all models, I think)
2. Porsche
3. Audi (most models?)
4. Saab (most models)
5. Volvo (most models?)
6. BMW (some models)
7. Volkswagen (most models have feature, but disabled)
8. Mini (optional)
