Mercedes-Benz G 550 2015 Operator's Manual page 254

Changing a wheel
252
rectly, the jack could tip over with the vehi-
cle raised.
The jack is designed only to raise and hold
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the vehicle for a short time while a wheel
is being changed. It is not suited for per-
forming maintenance work under the vehi-
cle.
Avoid changing the wheel on uphill and
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downhill slopes.
Before raising the vehicle, secure it from
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rolling away by applying the parking brake
and inserting wheel chocks. Never disen-
gage 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, 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
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objects 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).
Never place your hands and feet under the
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raised vehicle.
Never lie under the raised vehicle.
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Never start the engine when the vehicle is
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raised.
Never open or close a door or the tailgate
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when the vehicle is raised.
Make sure that no persons are present in
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the vehicle when the vehicle is raised.
Using lug wrench :, loosen the bolts on
X
the wheel you wish to change by about one
full turn. Do not unscrew the wheel bolts
completely.
Pump lever ;
Assemble the pump lever for the jack. It can
X
be found with the vehicle tool kit
( page 214).
Y