Mercedes-Benz CLA 2020 Operator's Manual page 451

Using the lug wrench, loosen the wheel bolts
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on the wheel you wish to change by about
one full turn. Do not unscrew the bolts com‐
pletely.
Position of jack support points
Mercedes-AMG vehicles: observe the notes in
the Supplement. Otherwise, you may fail to rec‐
ognize dangers.
& WARNING Risk of injury from incorrect
positioning of the jack
If you do not position the jack correctly at
the appropriate jacking point of the vehicle,
the jack could tip with the vehicle raised.
Only position the jack at the appropri‐
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ate jacking point of the vehicle. The
base of the jack must be positioned
Wheels and tires 449
vertically under the jacking point of the
vehicle.
* NOTE Vehicle damage from the jack
If you do not position the jack correctly at
the appropriate jack support point of the
vehicle, the jack could tip over with the vehi‐
cle raised.
The jack is designed exclusively for
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jacking up the vehicle at the jack sup‐
port points.
Take the ratchet out of the tire-change tool
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kit and place it on the hexagon nut of the
jack so that the letters "AUF" are visible.