Mercedes-Benz G-Class Operator's Manual page 273

Observe the following when raising the vehi-
cle:
To raise the vehicle, only use the vehicle-spe-
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cific jack that has been tested and approved
by Mercedes-Benz. If used incorrectly, the
jack could tip over with the vehicle raised.
The jack is designed only to raise and hold the
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vehicle for a short time while a wheel is being
changed. It must not be used for performing
maintenance work under the vehicle.
Avoid changing the wheel on uphill and down-
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hill slopes.
Before raising the vehicle, secure it from roll-
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ing away by applying the parking brake and
inserting wheel chocks. Do not disengage the
parking brake while the vehicle is raised.
The jack must be placed on a firm, flat and
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non-slip surface. On a loose surface, a large,
flat, load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must be
used, e.g. rubber mats.
Do not use wooden blocks or similar objects
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as a jack underlay. Otherwise, the jack will not
be able to achieve its load-bearing capacity
due to the restricted height.
Make sure that the distance between the
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underside of the tires and the ground does not
exceed 1.2 in (3 cm).
Do not place your hands or feet under the
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raised vehicle.
Do not lie under the vehicle.
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Do not start the engine when the vehicle is
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raised.
Do not open or close a door when the vehicle
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is raised.
Make sure that no persons are present in the
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vehicle when the vehicle is raised.
Changing a wheel
Using lug wrench :, loosen the bolts on the
X
wheel you wish to change by about one full
turn. Do not unscrew the bolts completely.
Assemble the pump lever for the jack from the
X
vehicle tool kit.
Turn lowering screw = on the jack clockwise
X
as far as it will go using notch ; on the pump
lever.
Pressure release screw = is closed.
i
Do not turn pressure release screw = by
more than one to two revolutions. Otherwise,
hydraulic fluid could escape.
Position jack A vertically under the jacking
X
point of axle carrier tube ?.
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