Seven has always been an expensive car to maintain and just because you buy an older model doesn't mean you'll have cheaper repairs, problems will keep coming and coming until they finally "kill you." (in the end, you will hate this car and get rid of it as soon as possible, that's what my very good friend did)
Anyway, I hope you will have some fun with your car.
As a consolation, I will only tell you that I am currently driving the 740d - 2017 version of the G11, as soon as I notice that the car turned against me and will try to "kill me" with its repair service, it will definitely have a new owner
