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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 12-13-2011, 09:26 PM   #1
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Join Date: Mar 2008
Location: Vero Beach FL.
Posts: 2,249
My Ride: 99 328i. ZSP, ZPP,
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BMW M30 3.5 Problem, headgasket.

I'm having trouble diagnosing if this engine has a blown headgasket.

This is my uncles car in Venezuela.

This car suffered an overheat and it has been sitting for more than 4 months in a cold and humid enviroment, I went to check the oil and it was low but black in color not a milkshake.
I got the stuff to change the oil and when I took the oil drain plug off some crystal clear water came out for an instant than black oil. This car has never used coolant as long as I can remember only water.

I changed the oil (6 quarts) and put the filter in and started it up. It ran fine except for the valves. I ran it for half an hour and bled the cooling system.

The car NEVER went past the middle mark on the temp guage and the water looked clean as hell.

However there was white smoke coming out of the exhaust and it was to dark to tell if the oil was mixed with water or if the oil was just new.

The oil cap has A FEW white spots under it but this is a cold and humid enviroment and short distances can also cause this, not only a bad headgasket.

Can somebody help me?!?!

1999 328i Sport Package, Premium Package, 5 speed, Alpine white.
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