I bought new to me pair of X5s in 2015.

128k and 112k (miles) back then and 190 & 182 today. It's actually a good thing to have a pair of them. We have interchanged parts on several occasions to avoid an expensive tow. Just needed a ride to the car. Once was a cam shaft sensor once was the fuel pump. Also when one part fails usually on the higher mileage car, i know what's coming and already have fixed it. Great example is the DISA valve

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)