Task completed !

Although I have a Behr radiator, funny thing is that I could not find the typical rad. plug under the driver side of rad. (or pass. side), where it typically is found.
So I just undid the pass side lower rad. hose.

My thermostat housing did not have a bleed screw.
I just let the car idle with reservoir cap off to give it a chance to get the air out.
Good for another 3 yrs.

THX.

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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD