Was self level used in 00 E320 4matic wagon?

[97 SL320]

I'm sort of interested in a 00 E320 4 matic wagon and the rear pic seems to show the car leaning to the left and kind of low overall. Did these have rear self leveling?

If so, was it hydraulic or air?

The car is a repo, state safety inspection expired, bad battery , claims ~ 100 K miles. There are a few running and driving cars listed in the $3500 range and they want nearly that much for this one. I'm thinking $ 800 for a winter car.