- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If water/coolant is coming out of the oil pan drain you have major problems. Possible internal cracked engine block/cracked cylinder head or bad head gasket.Do not run the engine as this will cause the bearings/motor to seize until it is fixed
I am say this on the assumption that you have an automatic transmissionI. If so the oil in the coolant system will be automatic transmission oil from a cracked oil cooler in the radiator . A simple radiator replacement will fix the leak and a radiator /block flush will take care of the residue . Next thing if the car is running well then there will be nothing wrong with the head gasket or a cracked head as if these were evident the engine would be running like garbage. Next point if the head studs were un- removable because of stripping of the threads in the block then there is a product call HELICOILS that are screwed into the stripped holes and renew the threads back to new condition. So you want suggestions I suggest that these so called mechanics saw you coming and expect to make big bucks out of you. Find another accredited BMW service dealer or a qualified engine re-conditioning engineering shop. I suspect that you are being set up to be ripped off as a motor from the wreckers would cost less that what has been proposed for you.
The only place, oil and water share a gasket is the cylinder head gasket, oil and water galleries run through the engine block and head via the head gasket. The cylinder pressure will be OK, it's the oil pressure that's putting the oil in the coolant, the gasket has gone between the water and oil galleries or there is an internal crack (unlikely). A coolant pressure test should show it up.
My statement would be, either one of the head gaskets is not on correctly, or you have a large crack in one of the heads, or the block. Did you have the heads checked for cracks when you had them off the engine ? Was either gasket blown ? There has to be a gap between a water jacket and an oil jacket for the coolant to enter the crankcase.
it could have a problem behind the water pump/ timing cover. bu *** could be head gaskets. DO NOT put anything to try to fix this, it will not work and cause more damage. but your engine is already damaged.
Could be a blown Head gasket or cracked head. Should be a drain at the bottom of the radiator I think on the drivers side. You will need to pull the heads off and have them checked Magnifluxed for cracks. If they find none then install new head gaskets and see what happens. I have the torque specs for your head bolts if you need them. Let me know.
If forced to guess, I'd have to say head gasket...but, could be cracked head also (can't really tell unless you tear it down, but to do the repair, either way that's what you need to do.) If residue was reddish, it could be the trans cooler in the radiator but it's not, so rule out radiator. Make sure you flush out system and change hoses during job ... oil softens them and makes them prone to failure. Even if head does not appear to be cracked, have it checked for warpage, sometimes they twist when overheated. Cracked blocks are rare...I would not be concerned unless engine was frozen during winter.