Re: coolant seeping out of perfectly clamped-down upper radiator hose on a 1993 190E

In fact, I suspect the plastic neck cracks because many persons clamp down too much. The plastic eventually gives up. Updated version has metal inside the neck to counter the pressure.

Many radiator shops can replace the plastic tank. Just call around your area. It costs me $180 to get a new top and complete cleaning for a 300SDL radiator (bringing it to shop). It was like a 3-hour turnaround time for the shop.

T.G. Lambach wrote:

I suspect the neck to tank seam has cracked so further clamping of the radiator hose is useless. With this in mind look at it again carefully to see if that is in fact what has occurred.

Some radiator shops can fix plastic tanked radiators, suggest you dial up the shops in your area or shop the internet for a new radiator. 

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