if you are referring to the heater core that will be the first blocked one that i have ever seen in a benz.last one i saw was in an early mustang 302 that had been running plain water with no antifreeze.

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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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