So I got my antifreeze leak fixed by the dealership under warranty 4 months ago by replacing the radiator. All good up until about a couple weeks ago. I noticed a coolant smell. So finally investigated it and it's leaking from on top of the water pump area around which seems to be a plastic nipple with a cap or screw. Can this cap or screw beat tightened? Should I even attempt to tighten it or should I just bring it back to the dealership? Why would this particular area leak?
I can't answer your specific question. However, thes water pumps sure go bad early and often. You likely need the dealer to replace your water pump with a new one. The thermostat should also be replaced, and the serpentine belt inspected.
Keep an eye on it. Dealer replaced the thermostat in my 2012 and a week or so later a white cloud rushed out from under the hood and coolant was everywhere under the hood; and I had to get it towed to the dealer and then they replaced the water pump which did finally fix the problem.