[husker boxster]

Water pump - if there aren't any drips around it now, you have options. If it's convenient to change it now while you're doing your other work, then go ahead and change it. If it's a bad time of year (winter here) or you need to recharge your wallet, then wait for a better time. If you wait, keep an eye out for drips in front of the right rear tire and for whiffs of antifreeze. When they go, the can go quickly but they'll give you a few hints before they give up the ghost.