. with the recess on lowering screw 
on the jack. clockwise as far as it will go. Lowering screw is closed.
To raise the vehicle at the front: adapter must be secured on the jack.
To raise the vehicle at the rear: remove adapter from the jack.
Use only the vehicle-specific jack that has been tested and approved by Mercedes-Benz to raise the vehicle.
The jack is only designed for raising and holding the vehicle for a short time while a wheel is being changed and not for maintenance work under the vehicle.
The jack must be placed on a firm, flat and non-slip surface. If necessary, use a large, flat, load-bearing, non-slip underlay.
Position the jack only at the jack support point.
Never place your hands or feet under the vehicle.
Never lie under the vehicle.
Do not start the engine and do not release the electric parking brake.
Do not open or close any doors or the rear-end door.
If you do not position the jack correctly at the appropriate jacking point of the vehicle, the jack could tip with the vehicle raised.
If you do not position the jack correctly at the appropriate jack support point of the vehicle, the jack could tip over with the vehicle raised.
on the comfort bushing on transverse link 
. 
at the jack support point of axle carrier tube 
. sits securely in the jack support point and the base of the jack lies evenly on the ground.