i think you would have to subject engine to hard freeze with only plain tap water in it [no antifreeze] for the block to crack.water leak from block likely to be freeze plug,but it's probably the head gasket.

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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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