You are right, someone else also told me that all S55 AMG models have ABC.

So, how realiable is airmatic and what are the average maintenance/repairs costs in comparison with ABC?

I would have liked to have an S55 but after your recommendations I have decided to stay away from ABC. So, it will be an S series then.

Kind regards,

Orazio
Vienna, VA

95 E320
93 500E