Need some help in locating a diagram of the heater hose layout on a 500sl , Previous owner cut lines at firewall and by -passed the heater core. Car was located in FLA and now in New York, With colder temps will need to get heating operating. Have already replaced the climate control unit and mono valve. Dont think core is bad or plugged have been able to fill core with water and passed through with no problems or leaks. Will deal with core if a problem at a later date.
Please help Buffalo NY - Gets real cold

 

I can't believe nobody here can help you with this...Try posting it at benzworld.org in the R129 forum...