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Old 02-11-2019, 08:18 PM
cn90 cn90 is offline
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,151
cn90 is on a distinguished road
The video below showed a guy replacing his BMW E46 RMS, note at time marking 2:00, he pointed to oil in that particular bolt head (roughly at 5:30 o'clock when viewed from behind looking to the front of the car). His leak was solved by new RMS.

So I am very convinced that the oil on that bolt head (roughly at 5:30 o'clock when viewed from behind) is from a minor RMS leak. I already did the BavarianE39 CCV Mod, so it is just a minor leak, maybe one qt every 5K miles etc. Nothing to worry about.

This is so others who have the leak at that bolt can diagnose it properly (clean the dirty oil first), drive around for 100-200 miles, if you see drops of oil at that bolt head, then you have a RMS leak.
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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