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1988 560SL 71000mi, 2015 S550 4Matic
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194 Posts
Discussion Starter #1
I have a 2008 S550 and thru the command have turned on my headlights as the daytime running lights (I feel better being a bit more visible). Does anyone know the life expectancy of the HID lights? How much and I shortening their life by having them on all the time?
Thanks
Michael in Arizona
 

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2009 S550 4MATIC
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106 Posts
Sorry to bring up this old thread, but I am from Canada and have that same question. But also to add, does anyone know why the DRL (Daytime Running Lights) use the Xenons and not a halogen bulb?

Thanks for any replies!
 
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