I know that convetional struts/shocks have a finite life of optimal function. I've perceived difference in damping between a new car and one with 50k miles under it. How do Airmatic components hold up to wear and tear? Has anyone experienced diminished performance or even failure due to high mileage?

 

68,000 miles. All you can do is replace the expensive airmatic system. Sport 1 is feeling like comfort mode.

 

You can replace the shocks for $1500 each, OR you can lookup your drivetrain warranty?