Mercedes-Benz S 450 4MATIC Operator's Manual page 726

The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.
2 Jack take-up bracket
3 Jack
4 Crank
Place jack 2 on firm ground.
Position jack 3 under take-up
bracket 2 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an
incline.
Turn crank 4 clockwise until jack 3
is fully seated in take-up bracket 2
and the jack base evenly meets the
ground.
Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while
vehicle is raised.
Practical hints
Flat tire
Warning!
Position the jack only on the jack take-up
brackets designed for this purpose.
If the jack is not properly positioned, the ve-
hicle may fall off the jack and cause serious
personal injury or damage to the vehicle.
Warning!
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.
Never start the engine when the vehicle
is raised.
Never lie down under the raised vehicle.
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