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Hey guys I have the 09 Mini Cooper clubman s. While down in Florida for my vacation I noticed oil inside of my coolant reservior like melted chocolate icecream. No funky smoke, oil in crankcase is fine, no funky looking oil in valve cover, car runs fine. Had it towed all the way home to Georgia but need to get this resolved. Anybody please help?!?!?
09 Mini Cooper clubman s(my second child) it has 135k miles and I treat this thing like a newborn. Everything was fine before my 385 mile trip to Florida. Checked all fluids everything good. Drove like a dream going there and while I was there. Never overheated or threw any CEL. But when I popped the hood to give her a look I noticed the oil in my reservoir. Not just a little oil..... a LOT of oil. When I flushed the system yesterday it was atleast a few quarts. Car never stumbled or acted weird.
Oil in my coolant. I only take my car to the shop when it is somthing out of my boundaries. And I take it to a very reputable European shop. So nothing is or was ever mixed improperly.
Three is low but I don't think that would put oil in the coolant. I would guess oil cooler leak that's where the higher pressure oil is close to the coolant. Head gasket or anything like it would put coolant in the oil.
Coolant is usually at low pressure unless you are overheating.
Mercedes sells a radiator flush powder that removes scale and oil, It may take several flushes to get it all out.
Three is low but I don't think that would put oil in the coolant. I would guess oil cooler leak that's where the higher pressure oil is close to the coolant. Head gasket or anything like it would put coolant in the oil.
Coolant is usually at low pressure unless you are overheating.
Mercedes sells a radiator flush powder that removes scale and oil, It may take several flushes to get it all out.
Anyone else have any ideas?
My question is could it fail internally? I've already had to replace my oil cooler seal due to it leaking oil on my exhaust(1yr ago). But fluids never mixed.
My question is could it fail internally? I've already had to replace my oil cooler seal due to it leaking oil on my exhaust(1yr ago). But fluids never mixed.
It could absolutely fail internally - I've seen it happen before.
You could pressure test the coolant system, but if your leak IS in the oil cooler, you'll push coolant into the oil pan. I had a VW oil cooler with a leak, bottle overflowed with chocolate milk stuff, and dumped right onto and into the distributer. Whoever though in the European 5cyl to put the bottle over electronics should be hung.
If you've done the gasket you know the work, but an oil cooler, replace it, flush and fill with water, and see what happens.
I'd send an oil sample to blackstone labs to verify there is NO coolant in oil. Even a small amount could trash your motor. If oil is in coolant you can bet that some went the other way as well.
04-09-2017, 09:15 AM
