I very much have exactly the same problem with my 2023 Model X and I am coming from a 2019 Model 3 Performance with 82k miles. Experiencing precisely the same issue you describe. I noticed the vibration on the drive home from delivery day in September and reported it to service within 1hr of delivery.
The Model 3 is, of course, much stiffer and harsher; however, it has none of the drivetrain vibrations that the X has. On a smooth road, the 3 feels like it is driving on glass whereas the X is like a high-mileage shaky POS regardless of the road surface. It is a shame, because the ride quality is otherwise very good.
I still have the Model 3 and this vibration is annoying enough that my wife and decided to take the 3 on a 7hr road trip because of how shaky the X is, and also because it has a warped front-passenger window that makes her car-sick, which is a topic for another thread.
Attempted Repairs
- (3x) tires were replaced due to high road force.
- (1x) wheel was replaced due to being out-of-round.
- Alignment
In total, I have brought this vehicle in for service 9 times in 5 month. While these fixes improved the ride, the vibration was still there.
Also, it's crazy to me that the vehicle was shipped with three defective tires and a defective wheel. The road force wasn't just a little off, either - they were showing between 28-62lbs of road force. It should be under 20lbs for a vehicle of this weight. In the end, we were able to get all four wheel/tire assemblies below 12lbs of force, which is great but, again, the vibration still persists.
Comparison
I used NVH measurement to compare it to my 2017 Sprinter 3500 cargo van with 102k miles and, believe it or not, the Sprinter has lower NVH. It just is not acceptable for $102k car to shake like this. Every time I am in another car I think "does this shake like the x" and the answer is always "no".
Result
After much convincing, Tesla offered a buy-back on the Model X. I am still waiting on the terms of the buy-back, and I did an FSD transfer, so hopefully they will refund the value of that. Should know the final outcome in a week or two.
Thoughts
As much as the Model X is what I am looking for, I am extremely hesitant to go through all this an end up with the same result, which seems highly probable. The car is so cool, it has its quirks, which I can live with, but the vibration issue is absolutely not acceptable. This is such a
basic requirement for any vehicle, never mind one at this price point.
Likely going to replace it with a new Model 3. When/if there is a new X, or at least a drivetrain update, I will reconsider X. It just is not at all ok that some of them shake like this.