Body and Interior Specific Aid

80% Defrost only from blower

I have a 1981 300SD. Fixed my A/C. Now all my A/C blows out the defroster. I noticed all modes are 80% out the defrost ducts. Where do I go next? Vacuum? Electrical? Any diagrams available for either?
I do show 15" vacuum at the source. Low I know... seems to be the shift diaphragm on the pump. It also takes about 10 seconds to shut down after key off.
What's next?
thanks,
Bob

Chassis Model Number

Forums

1979 300SD windows and interior

Kent:

Just purchased a 1979 300SD with a great engine and body, but a trashed interior. Windows are not moving, switches for windows have been removed and just dangling (someone was obviously trying to diagnose the problem).

I have ordered your interior manuals about dashboards, etc. However, where can I find good replacement parts. Suggestions for sites? Also, how about exterior parts (i.e. like trim, etc.). Any suggestions on where to find those types of parts.

Also, do you have any guidance on troubleshooting the 116 windows?

Chassis Model Number

Forums

Pages