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deansbimmer · 05-11-2017, 09:03 AM

Those two small holes are drain passages which allow water that collects in the middle of the engine V to drain. It's not a coolant leak- all S65's will look like that. The large allen bolt in the middle is a plug to the main oil gallery.

05-11-2017, 09:03 AM	#2
deansbimmer BimmerPost Supporting Vendor 4324 Rep 3,023 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 E30 M3 [0.00] 2006 E46 M3 [0.00] 2024 X7 M60i [0.00] 2011 BMW M3 [0.00]	Those two small holes are drain passages which allow water that collects in the middle of the engine V to drain. It's not a coolant leak- all S65's will look like that. The large allen bolt in the middle is a plug to the main oil gallery.
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