Question about Audi A6
Hello. This test is generally reliable. Get a chemical test kit from the auto parts store. It will show if there's presence of combustion gases in the cooling system.
NAPA carries this one under Balkamp # BK 7001006 - http://www.blockchek.com/index.htm
Sometimes you need to get the engine up to operating temperature for a little while before a crack will open up.
Posted on Jul 18, 2010
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Posted on Jan 02, 2017
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