Bmw Coolant Mixing With Oil

How does the engine oil look? If it's a leak within an engine oil/coolant barrier, depending on where, and which system, the higher pressure system leaks into the lower pressure system. I've heard that mixing coolants could create weird sludges as does adding stop leak but it's usually darker in color. Consider a flush and monitor.

The oil filter housing gasket on these cars is a known failure point. The oil filter housing also contains an oil cooling passage for the coolant. When this gasket fails it can sometimes allow oil and coolant to contaminate each other.

N52 are not known for blown head gaskets unless they are utterly abused by their prior owners. I would get the oil filter housing gasket check before jumping to. Oil mixed in coolant All times are GMT -5.

The time now is 05:46 AM. Yet another n55 oil in coolant thread. All times are GMT.

BMW dealer suggested it was AT oil leaking into the coolant via the AT oil cooler (at the base of the expansion tank). FYI, quoted repairs from the BMW dealer included changing the radiator, both hoses, water pump, thermostat, AT cooler, and doing a coolant flush and fill and an oil/filter change, for $4,300. BMW 330d F31 2013 Mixing oil with Coolant Please HELPhi i have tried to show you in pics of the suspected culprit.

now as i have mentioned in my other thread 1 of the coolant pipe was crack from near radiator and then i have replaced it with new one from BMW few of the mechanics have advised that it could be oil cooler in my case its 2 heat exchanges (oil coolers) fitted on my BMW 330d f31. I lost a good 2-3 quarts of oil into the coolant system. I had milkshake for days in the cooling system but not a drop of coolant/milkshake in the engine fortunately.

Unfortunately, this type of repair can also be quite costly. How to Fix To fix a failed oil cooler, the first step is to remove the faulty one and replace it with a new cooler. After that, make sure to flush both the oil and cooling systems really well to get rid of any mixed fluids.

Once flushed, refill both systems with fresh oil and coolant. Oil & Coolant Mixing BMW X5 and X6 Forum (F15/F16) > BMW X5 (F15) and BMW X6 (F16) Forum > BMW X5 and X6 (F15/F16) Forum Oil & Coolant Mixing.