My 300SDL finally back on the road , is running hotter today on a nice cool 70* day than in the middle of summer on a 100* day with the A/C on.
I replaced the fan clutch, fan blade and thermostat about 2 years ago.
Just finished replacing the head gasket, added coolant through the coolant tank.
Went through the process of filing , and adding more , running the heater, adding more coolant until the system I think is filled.
Yet , out on a drive down the freeway after 10 minutes, with no A/C on, I'm at
95 + degrees, then come to a stop and nearly hits 100* .
Did not do the fill through the upper radiator hose.
Checked the fan clutch at about 90* on the gauge and the fan free wheels for a few seconds after shutting the engine off.
Any ideas?
Thanks

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1986 300SDL 201K Daily Driver
1984 300D In Progress
1989 240GL 196K Swedish Brick
1984 300SD -- Sold 289K
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