Mercedes Benz repair: heater fan, 300se, heater fan

Question
heater fan just  quit,  no noise or rattling first,  is there a fuse, cannot find it and where is heater motor     1990 300se   6 cyl

Answer
These threads should help.

Help Please - Electrical Problems '91 300SE
http://www.mercedesshop.com/shopforum/showthread.php3?p=302933#post302933

91 300SE heater blower question
http://www.mercedesshop.com/shopforum/showthread.php3?p=1031404#post1031404

'92 300SE Inline 6 AC Problem!
http://www.mercedesshop.com/shopforum/showthread.php3?p=866123#post866123