None of the original equipment Behr's had that reinforcement in the neck either until 1992! Have replace 100's of those Behr radiators for that EXACT problem as well.......HOW old was the radiator?

Every day PLASTIC radiators are replaced for that problem on almost ALL brands of cars!

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator