Same here.  I added about a quart to the overflow tank.  We'll see what happens 
on the way home.

Michael E. Esh
me...@horizonenv.com
michael...@mac.com
http://www.yugster.com/invite/138123
(C) 231.286.2344


On Mar 12, 2015, at 12:00 PM, Andrew Strasfogel via Mercedes 
<mercedes@okiebenz.com> wrote:

D'OH! Maybe I don;t need no fr***in* monovalve.

On Thu, Mar 12, 2015 at 11:00 AM, Curly McLain via Mercedes <
mercedes@okiebenz.com> wrote:

Andy sez: After my recent trip in frigid weather, I did notice that
coolant level was
WAY down, despite the fact that the engine temperature ran normally. By
the time I topped off the coolant level the amboient temperatures were
above freezing, so I had no chance to test whether this made a difference
in cabin heat.

What do people think - is there a connection? If so, what's the theory
behind this?


Absolutely! If the coolant level is too low, it will not circulate into
the heater. No warm coolant = no heat! Low levels with some splashing in
some times = intermittent heat.

The engine will run normally even when the coolant is too low to circulate
in the heater.

Before testing anything else, fill the radiator!

Check the coolant regularly, and certainly before any long trip!


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