AboutRon Expertise I can answer questions on W114/ W115 /W107/W126 Mercedes models 1967-1985. I have rebuilt many of these cars and have problem solved many issues. I have access to much of the technical data and have deailed instructions on fixing the most common issues.
Vintage US and other foreign cars as well
Expert: Ron Date: 5/25/2008 Subject: Electric fan for '72 450SL
Question Hello Ron: Hope you can help.
I would like to replace my pulley driven cooling radiator fan in my 450SL with an electric fan.
How large (CFM rating) electric cooling fan would be needed to meet the cooling requirements of the V8 4.5L in my Mercedes 450SL ?
What is the CFM flow rate range that is generated by the pulley/clutch operated fan used in the 450SL ?
Thanks, Frank
Answer Frank
Well I have every available manual for the 72 450 including the shop manuals and this data is no where to be found. You may try MB classic center , they might be able to help.
I do know you will have to pull a great deal of air as these cars are designed to run hot, and will overheat easily if not properly cooled. Why the change?
I would assume it would need to run full time ( unlike the AC fan) and may be noisier than the actual fan
Good Luck
Happy Motoring
Ron
