Enterprise has some.

I have not gotten a new battery for my car since I got it in 2017.

That is 99.9% needing a new battery. 6 years is a good long life for a battery. Make sure to tell the car a new battery has been installed.

It means your battery is discharged & you should start the engine & drive it for a while.

Does the mobile battery installation company do the coding required by your car?

Bmw.com

Rent a 10x20 storage unit. Why no drive?

You need 2 sets of stripes on the hood. And another set on the roof. Make sure they don’t line up. Don’t forget the ///M badges.

When you change your oil, do you suction the oil up out of the cooler? What’s your process?

Like everything else in life, if you can’t do it yourself, you pay someone else to do it. Dealership prices are the highest; expect labor rates above $150 per hour. Parts prices will be the same at dealer and independent shop. Indy shop labor rates will generally be less than dealer.

Substantial savings can be realized doing the work yourself. This does require time, tools, space & inclination.

Color is not a reliable characteristic for determining coolant. Call the dealer and ask. My car uses G48. That means G48. Not red, blue, green, yellow. G48.