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E36 General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.

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Old 11-12-2010, 07:05 AM   #1
goforit

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Question '94 318i M42 loosing water

Hi,
My '94 M42 318i appears to be blowing water (coolant) out the exhaust. I don't see any blackening of the remaining water or see any water in the engine oil? Could it still be a head gasket? What else could it be? Is there another way that it could be getting to the exhaust? I'll pull the plugs tomorrow and see if there's a difference between them? Are head gaskets or anything else that could cause this a common problem for these engines?

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Old 11-12-2010, 10:49 AM   #2
Big Evil
 
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Water in the exhaust is a pretty clear indicator of a blown head gasket. I'd first check for just condensation in the exhaust but if you're losing coolant and it's not boiling over or a leaky system. Then it would be going out through the head gasket into the cylinders and out the tailpipe.
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Old 11-13-2010, 05:30 PM   #3
goforit

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All spark plugs look the same. As background the car sat for six months or more before this. No external leaks. I've marked coolant level to see if it as moved when it cools down. Coolant also looks clean?
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Old 11-19-2010, 01:30 PM   #4
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Depends on the failure. But if you're getting coolant out the exhaust it HAS to be getting there somehow
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Old 11-20-2010, 10:17 PM   #5
Manolito

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If the car runs OK and the coolant looks OK, then I am going to put my money on even worse news. I vote cracked head. Let us know what you find.
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