My 1985 500sel euro has a brand new raditor water 1 old year water pump and a removed thermastat. new antifreeze ive done every thing. even on the interstate if i am behind a pickup and it starts go get up to 110 and u pull out in to air and it wont cool down for a while and then goes to about 105 c (with the a/c of it cools down) its got the big v8 is this normal

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1985 euro 500sel 220k
1981 300sd 278k sold
1989 chrysler
leabaron 130k
1990 320sl (hopefully)