The blower motor is underneath the right side AC vent, you have to pull the glovebox to get to it. Likely it is either stuck (not running) or the hose has come adrift. It's hard plastic, not foam.
Symptoms are a non-working temp sensor, likely due to no flow. See if a bit of thin paper will stay up on the grille next to the sunroof switch -- the interior temp sensor resides behind it. If not, you will have to find out why it's not pulling and either repair the hose connection or replace the motor. You may also have other bad temp sensors as well, though. Peter _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com