Air strut bellows split

[the head]

While changing my oil this evening, I raised the car up to the highest terrain setting and noticed the bellows/cover was split on both air struts. It's #13 on the attached pic. Is this something that I can replace myself? I was considering swapping in Turbo S lower control arms anyway and thought it would be a good time to do it all at once.Air strut.pdf

[RFM]

Look here http://www.renntech.org/forums/topic/42157-help-with-broken-air-suspension-cover/?hl=suspension

[the head]

I had seen that, but there are no sharp edges coming out of it. It's just the plastic bellows that is torn.

[the head]

OK looking around I found this link with Arnott, who makes new air springs for the Cayenne. The piece in question that I'm seeing split is just a dust boot. Arnott doesn't even install or re-install one. Perhaps their design is more robust? In any event everything is still working fine - maybe I'm just being a little paranoid about it since Porsche put it there for a reason. Check out the install link - it appears getting the air strut out is a bit easier than what the Porsche service manual states you have to do.

https://www.arnottindustries.com/ftpManual/A-2571%20RR%20Web.pdf

[hahnmgh63]

My question is: Is the shock under the Air Spring of a fairly conventional design? If so, how long will the original shock itself last. If it's fairly conventional the compression and rebound capabilities are starting to get weak by 100K?

[the head]

I'm at 90k miles on mine and they adjust with the electronic settings just fine. I can't tell a difference since I bought it up to now (60k miles ago).

[mcbit500]

My old 05 CTT at 195,000km on its last annual roadworthiness test had to be put in the sport setting to pass, however damping was still adjustable and didn't feel substantially different from what it had done in the past. At this point if driven very hard it would tend to buck a little in fast corners.