Since the gaskets will be here tomorrow, I'm going to flush the coolant, change the oil, and replace both gaskets on Saturday morning. I know when the OFHG on my E92 went out, the housing itself was leaking badly - is it possible for the gasket to be bad and only allow oil to cross into the coolant, without an external leak? I can't find any cases of the OFHG going bad in this fashion (no external leak), but with the car only having 37k miles in 5 years, I'm not sure where else the oil may be crossing over into the coolant system. I was thinking it may be the OFHG so I preemptively ordered both the OFHG and oil cooler gaskets yesterday, but there is no seepage or leakage anywhere on the oil filter housing. ![]() If not, does anyone know how the F30 measures coolant level? This is why I'm wondering if there is a coolant level sensor similar to the E90 that may be faulty. After adding to the "max" level, the car still said the coolant was low. I did run the bleeding procedure after adding into the expansion tank, but it was only at the "min" level when the message popped up. I may dye it in the morning and see if I can find a leak before doing the coolant flush this weekend. I've pulled the belly plan and looked upward into the engine bay with the car off and with the car running, and can't find any hint of wetness from a coolant leak. ![]() ![]() look it up.Ä«rown coolant is a sign of corrosion or Oil Mixing with Coolant somewhere. 2) Coolant Low means that after pouring in Coolant first time you should have Purged the coolant system.
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