Towing a boat with X5d

[Proflyer]

I just bought a malibu wakesetter and we've been enjoying it for a month or so now here in CO. I'm VERY surprised at how well the X5 diesel tows the boat--I swear it pulls it better than my step-dad's 2015 Silverado 1500.

Question is this: we plan on doing some camping soon at one (or several) of the mountain reservoirs. This means up/down passes etc. I've towed in CO for years, so I know HOW to drive in the mountains, I'm just curious if anyone has any experience with this rig specifically--towing about 4000lbs. No tranny temp gauge, no oil temp gauge etc. worries me a bit as I've always had things to monitor before.

Thanks!