I don't exactly know how it works or what components they use, so if anyone could shed some light, it would be great.

it down to the bump stops.

Also, are you sure you can get that for a C6 A6? Unlike older vehicles, the MMI handles the adaptive air suspension.

riding on the bump stops will not give you very good ride quality.

I went to a local Mercedes dealership & they had several S500's (I nice Brabus tuned version I was eyeing) all lowered & the guy was mentioning it was done with a lowering module.

I think GMG in Santa Ana has them. And it is pretty pricey.

the d3 forum you will probably find some more information.