Radiator problems I think - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 05-02-2004, 02:51 AM
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Thanks for replying to my other post...

I got another question, my "91" 318i seems to run low on radiator fluid every three or four weeks, and of course then my temp gauge goes up and i refill it, but where the hell is the fluid going? I checked every where for leaks and couldnt find anything. Two people have told me maybe its leaking into the engine through a hole in the block...could this happen or what? Wouldnt the car overheat constantly because the water in the oil? Well if you got any suggestions or comments please tell me.

Thanks

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#2 (permalink) Old 05-02-2004, 10:09 PM
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KC Ron Carter is an unknown quantity at this point
If there is no external leakage then the engine is consuming the coolant.

With a steel block and an aluminum head, the expansion rates of the parts is very different so the head gasket must take up the gap.

It is not unusual for the head gasket to start allowing the coolant into the combustion chamber.

Get a co2 coolant test for head gaket leakage.

Or you can pull the spark plugs and look for one that is very clean.
The coolant flashes the carbon off the sparkplug.

It is also not unusual for the gasket to seal up again as the engine reaches the normal temperature.

Later,
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