good comments above, esp SL320 on the line to the vacuum modulator which I had leaking trans fluid into the intake, nobody could diagnose and I repeated the head gasket repair needlessly pulling the head a second time and replacing it again! Im now very fast at the job! And then finally identified a bad modulator valve! I looked into head gasket issues also because of normal white smoke. My 95 E320 produces lots of white water smoke normally, lots of wet dripping and one might suspect a head gasket leak but no water is being lost, not a drop! I suspect it idles too rich for some reason.

Liquid water from the exhaust is normal with a cold engine / very cold weather. A byproduct of combustion is water, when things are hot it is vapor not liquid.

This is one way:



NOT MY CAR!!!

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Or a sign of a failed engine lube oil to coolant heat exchanger.

Remove a spark plug one at a time , spin the engine over you should see coolant come out of the plug hole ..