C6 Air Suspension Lean

Sounds like it could be the pneumatic suspension, like you said, maybe the bellows valve. Does the leaning happen on one side all the time, or does it change? Did you try lifting the suspension with the console controls? Could be a bad shock absorber too.

Yeah, it's mostly on the left, but it gets worse after driving. Tried the console to raise it, but nothing happens. How likely is it the air spring is bad?

Since it's leaning more on one side and the lift isn't working, a bad air spring valve is probably the problem. Happens a lot on older cars. It's tough to figure out yourself. Probably best to take it to a shop.

That's what I was thinking. Guess I'll book it in with a workshop to get the air suspension bellows valve sorted. Looks like it'll be around 590€.