Rad is about $300 or so, figure an hour or two for labor, this is an easy job.

Get the coolant changed at the same time if it's been a while.

Do not delay, please -- a broken nose nipple will cost you a head if you don't catch it instantly -- by the time the temp sensor shows overheat in a dry head, the head is toast.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!