2021 X7 M50i rides noticeably harsher than my 2025 X7 40i on the same 22” run-flats — normal or something worn?
I own two X7s:
- 2021 X7 M50i
- 2025 X7 xDrive40i
They are on the same 22” wheels and run-flat tire setup.
The 2025 rides super smooth, but the 2021 feels noticeably sharper over potholes and speed bumps. Not crazy bad, but definitely harsher and less compliant.
Important details:
- no suspension warning
- no sagging
- no obvious ride height issue
- transfer case is already being handled separately by dealer
- same wheels/tires, so this is not just a wheel size difference
My question is: has anyone experienced this on a 2021–2022 X7 M50i?
Did it turn out to be:
- normal M50i tuning
- worn struts/dampers
- air suspension aging
- control arm / thrust arm bushings
- mounts / bump stops
- something else
If you had this exact “sharp over impacts” feeling, what was the actual fix?
I have warranty and good dealership relationship, so I want to point them in the right direction before they just tell me “that’s normal.”