Mercedes-Benz SL 320 Operator's Manual page 104

5. Remove the protective cover
from the jack support tube
opening by inserting a screw-
driver in the opening and prying
it out. The tube openings are located
directly behind the front wheel
housings and in front of the rear
wheel housings.
6. Insert jack arm fully into the
tube hole up to the stop. Place
jack on firm ground. Position
the jack so that it is always
vertical (plumb-line) as seen
from the side (see arrow), even
if the vehicle is parked on an
incline.
7. Jack up the vehicle until the
wheel is clear of the ground.
Never start engine while vehicle
is raised.
8. Unscrew wheel bolts completely.
Keep bolt threads protected from
dirt and sand.
While removing the last bolt, hold
wheel against hub to avoid paint
damage on rim.
9. Remove wheel. Grip wheel
from the sides. Keep hands
from beneath the wheels
10. Screw the alignment bolt (1)
supplied in the tool kit into the
upper-most threaded hole.
Warning!
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel
bolts threads.
Damaged wheel hub threads should
be repaired immediately
104