Hi,

from the diagram below the recirculating pump supplies heated coolant for cabin heating and for heating up windshield water.

Because of a leak in this circuit leading to loss of coolant I want to electrically shut down the recirculating pump temporarily until the leak is fixed.

I understand that there will be no heated windshield water and no heat for the cabin, which I can live with.

The main question is whether the engine cooling is affected causing damage to the engine itself?

Thanks for bearing with a possibly dumb question but I was goofy enough to break a connecting pipe of the above circuit (part #23)!

__________________
1996 E320 since 1/16/08, 171K miles as of Feb 2011

---------------------------------------------------------
1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE