Hello,

Yesterday the top radiator hose on my C280 at the rear of the cylinder head broke at the plastic it clamps too....

I assume this is the heater core connection...

Does the dash have to come out to replace this 1inch tube of plastic?

Also...
The mechanic who has the car at the moment says he will block the heater core from the aux pump on the other side and possibly disable the pump to get it running in the meantime.

Should the heater cores path be returning coolant flow when shes running??? And is it ok for the engine to run without the aux pump??

Thanks

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Living sideways