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Old 11-25-2014, 08:29 PM
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jay_bob jay_bob is offline
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Join Date: Oct 2011
Location: Columbia, SC
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Same switch used all over the world, so it has the bulb whether it needs it or not.

The switch has the terminals NS (for the rear fog bulb) and 31 (for the internal light bulb ground). If you pull the switch and look at the connector plug, chances are you have 2 empty holes in the connector labeled NS and 31. You could run a new wire to the back for the rear fog light and a ground wire for 31 and it should work.
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The OM 642/722.9 powered family
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2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
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