THANX Charlie ! .
I'm still trying to figure out how I got so much condensate water in the passenger side footwell yet not a drop when I ran the garden hose in there via the blower motor opening......

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FWIW , I'd replaced the blower's brushes a year or so ago with the Mercedes Source kit , it was easy but the commutator was worn unevenly and has been worrying me so I bought a new Uro brand blower and installed it ~ it works great but is *much* noisier than the original Mercedes blower ever was .
I can hear that electric motor whine in addition to the squirrel cage noise .
On the other hand , I now have more air volume and that's good

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I'm about the install a SANDEN 7 series AC compressor and a new condenser plus an expansion valve as the system is charged and has pressure but only blows luke warm air no matter what .
The current R4 compressor was apparently replaced not long ago , it's a DELPHI (AC Delco's new name) unit , # 52390419 that's been trouble free as long as I've owned this Coupe .
I'll save it and prolly install in in my European 300TD that I'm pretty sure still has the original 1984 compressor in it , leaks out the charge in a few months every time I re charge it .
I include the AC Delco part # so others can find one cheaply .....
I'll report back on the SANDEN up grade after Summer .