Mystery leak...help!

[nestorb98]

Good Day!

!995 E320 wagon close to 300,000 miles. In my possession for nearly a decade. Just changed spark plugs, wires, coils, motor mounts, starter, coolant overflow bottle, coolant cap, thermostat...just spent $400.00 at Pelican parts last week...car runs really, really well.

Problem is I have to add about a quart of water every time I drive it to work, which is twenty miles. Whenever I stop after a drive, there is always a puddle under the passenger side. No temperature rise and not radiator light ever.

I had to replace the dreaded Y junction by the brake booster last week after it blew, but I don't think it had anything to do with anything as it was leaking before.

I now carry two gallons of distilled water wherever I go.

Is there a secondary reservoir somewhere under the car that I don't know about?

Thank you in advance.