Mercedes-Benz 300 E 1990 Owner's Manual page 86

Warning!
The jack is designed exclu­
sively for jacking up the ve­
hicle at the jack tubes built
into either side of the vehicle.
Use the jack only to lift the
vehicle during a wheel change.
Never get beneath the vehicle
while it is supported by the
jack. Keep hands and feet
away from the area under the
lifted vehicle. Always firmly
set parking brake and block
wheels before raising vehicle
with jack.
Do not disengage parking
brake while vehicle is raised.
Be certain that the jack is al­
ways vertical when in use,
especially on hills. Lower the
vehicle onto sufficient capa­
city jackstands before work­
ing under the vehicle.
9. Unscrew wheel bolts complete­
ly. Keep bolt threads protected
from dirt and sand. While re­
moving last bolt, hold wheel
against hub to avoid paint
damage on rim.
84
10. Remove wheel.
11. Screw the alignment bolt
(supplied in tool kit) into the
uppermost threaded hole.
12. Adjust the jack height so that
the wheel can be slipped on
without being lifted.
13. Install spare wheel on wheel
hub. Insert wheel bolts and
tighten them slightly.
To avoid paint damage, place
wheel flat against hub and
hold it there while installing
first wheel bolt. Unscrew the
alignment bolt to install the
last wheel bolt.
14. Lower car, remove jack.
15. Sedan: Place protective cap
into the jack support tube.
Coupe: Engage jack tube
cover hooks on top and snap
bottom into place.
16. Tighten the five bolts evenly,
always skipping one, until all
bolts are tight. Observe a
tightening torque of 110 Nm
(80 ft. lb.).
17. Correct tire pressure.
Warning!
Incorrect mounting bolts or
improperly tightened mount­
ing bolts can cause the wheel
to come off. This could cause
an accident. Be sure to use
the correct mounting bolts.
Important!
When installing new wheels the
mounting bolts must be retighten­
ed after approx. 100 to 500 km
(60-300 miles). Observe a
tightening torque of 110 Nm
(80 ft. lb.).