You should test your blower motor to see that it operates before replacing the regulator. Your blower and reg are availabe separately. Is commonly a reg problem.

http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1ZT1FAGUU25405JEUB&year=1997&make=MB&model=C-230-001&category=R&part=Blower+Regulator

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)