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Discussion Starter · #1 ·
Today I was checking the engine of my T5R and noticed that the coolant reservoir had turned dark, very dark and murky. I use the Volvo coolant and last time it was changed was last summer. Last time I looked the coolant was bright green.<br>All I can think of now is - water pump? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0">
 

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Re: Murky coolant (Rollin Olin)

Hmmmm, cooling system can mix with oil when there is a bad head gasket, and I reckon visa versa. You would see a sheen of oil in the overflow bottle along with some murk.<p>Hope this isn't the case!<p>Not sure why a bad waterpump would do this unless it was badly rusted.<p>
 

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Re: Murky coolant (guidowitz)

Do a block test to see if there are any exhaust gases in the coolant...if so chances are you have a blown head gasket.... also check to see if the engine oil looks like milk shake
 

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Re: Murky coolant (Rollin Olin)

I had Volvo do an antifreeze flush and change last summer, and the fresh coolant they used was a dark brownish green instead of the day-glo green I was used to. Apparently they changed coolants, and their new product looks like it needs to be changed as soon as it's put in, though it's perfectly good.<p>So, just to be sure - are you sure that your observation of bright green coolant was <U>after</U> the change, or might it be your recollection from before the change, and you have the same "new" coolant that I have?
 

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Re: Murky coolant (Rollin Olin)

The question is,is there oil in your coolant? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> <p>If yes,prob. the oilcooler wich sits inside the radiator,so a new rad. is required. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> <br>Head gaskets don't blow with the 850's normaly,it's rare. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> <p>gr,walter
 
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