I need a telephone consults with a qualified Mercedes Benz Technician
on a problem I am having with my 1991 Mercedes 300 SE. The heater will
not blow warm air. The front window defroster will blow hot ait at the
windshield and the A/C als works - just no hot air out of the vents on
the dash or onto the floor. I have replaced the monovalve to no avail
and wondered if
there's a way to pinpoint the problem before buying more parts. I also
checked voltage to the monovalve and it does change when the dashboard
switch is turned on/off. I suspect the Climate Control Unit, but it
would be highly beneficial to
speak to a qualified Mercedes Technician who has PERSONALLY  serviced
these cars and run across this exact problem before. I can me emailed
at
jjennings@zoominternet.net and I can call you or you call me, or if
you are prepared to give me a highly detailed answer in writing that
will suffice.