I'll second the W126 advice.

Any 300SD 81-85, any 300D 82-85, and any 300TD 81-85 radiator will sub right into your car. All the trim and sheetmetal will be the same from any W123 car.

Might be a good time to get euro headlights, if your looking at the cost of replacing all the USA spec stuff.

Bummer, dude.

Jim

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14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles