Jack stand possible work....

[vkmotorsports]

Originally Posted by JFP in PA

Allowing the suspension to hang exposes sections of the strut shaft that are normally inside the strut when the car is on the ground. Left exposed too long, these can develop corrosion that then ruins the seals inside the strut housing when the car comes down, resulting in strut cartridge leaking and failure. And before you ask, no, you cannot get at the shaft to spray protectant on them; they are covered by the strut boots.

If the car is inside a temperature-controlled, dry facility, the car can be up in the air for quite a while before this develops. If the facility is unheated or damp, the time frame becomes much shorter.

This process takes days or months ?

[JFP in PA]

Originally Posted by vkmotorsports

This process takes days or months ?

Depends upon too many "local factors" to give a precise prediction; is the facility unheated and located in damp environment, or heated and in a dry environment? Is it in an environment near salt water? The components inside the struts, namely the strut shafts. were never designed to see prolonged exposure to moisture, some can start to develop evidence of surface corrosion in relatively short order given the right conditions.

Porsche saw enough problems associated with damage from storing the cars with unloaded suspensions that they put out a TSB on the subject, warning dealers that they should not warranty any parts that were damaged because of this issue. Other OEM's have similar policies in place as well.