Just bought a pre-owned Mercedes 300E. Drove it Home 30-miles washed it then drove it to work 30-miles. I pulled in to work and within 5 minutes looked out and it started steaming and antifreeze ran out from under the car. Opened the hood and saw a tiny pin hole on the drivers side in the plastic looking part thats runs verticle down the side of the radiator. It's the part that the hoses connect to. Question: Is the whole radiator shot or is this part replacable? Any help is greatly appreciated.

Chris

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Chris Rogers