Whats an "W124 230E 89"?
http://catalog.eautopartscatalog.com/mercedesshop/sophio/model.jsp?header=header.jsp&footer=&partner=mercedesshop&baseurl=http://catalog.peachparts.com/&year=1989&make=MB&clientid=mercedesshop&cookieid=1FX0MB1RS1G7186XMP
I guess euro?
Is your ABS light on?
Did you test your Water Temp sensor?

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/showpost.php?p=831799&postcount=13
http://www.peachparts.com/shopforum/showpost.php?p=831807&postcount=14