Suspension lop sided

Hi all.

I have an 04 L322, not had it long but it's running fine, however when I returned to the car on a recent shopping trip I noticed that the right side of the car was about 3cm lower than the left? I did the suspension reset then during the drive home it lowered to motorway then back to normal and it's fine again.

Is this the beginning of the end for the suspension? Should I be acting sooner rather than later?

Appreciate any advice as this my first Range.

Thanks

Could be one of your air suspensions springs leaking slowly

Does the L322 self level every few hours like the P38??