X5 F15 - Potential Purchase - History - Repair concerns

Possible purchase, so been doing due diligence.

UK Car 2017 X5 40d, just under 36k on clock, main dealer history, being sold as approved used car.

Got hold of cars service centre visit history and coupled with last MOT, I spotted it had been in a lot over the past year and last MOT failed on Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)).

Enquired through the dealer and in summary was told, aside from servicing etc, it’s had
- EGR recall (2022)
- Investigate Engine Light - DPF sensor replaced (May 23)
- Investigate Engine Light - NOX sensor replaced (Jan 24)
- MOT fail Engine MIL light - NOX sensor replaced (Feb 24) - When i queried why again, they rechecked
their data and said apparently it was identified as a problem in Jan, but not replaced until Feb.
- Investigate warning light - Air Springs (Apr 24)

My question is… given the history and potential complications here, is it likely this car will continue to give problems and is this partly due to it being a low mileage car?
Is there more than one NOX sensor and perhaps it was replaced both in Jan and Feb 24?

Or potentially some other underlying issue?

Should I walk away?