I have a 2015 Limited, currently at 92,300mi. I haven't been noticing any symptoms of either water pump or timing chain issues. But based on what I've seen in the past, I get the impression that I should probably start setting aside money to have them done. How soon should I actually be expecting to have someone work on this? 95k? 100k? Is it dependent on other factors?

As far as I know, the car is also running the original orange coolant. I would also like to replace that based on advice I've read.

Thanks for any answers you can give!