Couldn't figure it out. Kept losing water. Started with 8 oz every couple of days, then quart per day. Tried everything. Searched and tightened. Figured it must be a head gasket. Laid awake thinking and worrying about the $$$$. Ended up being a separation in the seam of plastic expansion tank. You could only see it under pressure. Tested tank with compressor pressure and found it. $25 replacement. Problem solved. Just wanted to share to save someone else the pain and misery.

Thank you, I have a w202 that "looses" a little coolant that I'm having a hard time tracking down.

__________________
If it ain't broke take it apart and find out why.

1983 300SD, 4 speed
1994 C280
1987 300TD wagon
1996 HD Road King

Ride in Peace Eric Peterson, Harley of Macon

Get/borrow/rent a cooling system pressure tester.



Sixto
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