What is the recommended mileage/timeframe on replacing it? Idea of the cost? Should the water pump be done too like on other cars?

 

7 Year 70,000 miles.

Make sure the tensioner and idler pulleys get replaced as well.

If it were me and the water pump wasn't leaking I would leave it alone.

I have seen the water pumps go over 150,000 miles.

But if you have High milage then might be a good Idea to do it.

Without the water pump cost should be between $300.00 to $400.00 at an Indipendant shop.