The hydraulic windows are prized for near-silent operation but carry a genuine safety caveat: commenters warn there is no pressure-limiting safety system on closure, making the windows a finger guillotine, with repeated cautions about hands, children and pets. There is also a period warning against lowering windows above very high speeds.
Hydraulic windows: silent operation and the finger guillotine
Mercedes-Benz 600 Grand Mercedes (W100) · ownership