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4. Screw in the remaining lug bolts. Tighten
all the bolts securely in a diagonal pattern.
5. Lower the vehicle and remove the jack
from beneath the vehicle.
After mounting
1. Tighten the lug bolts in a diagonal pattern.
Checking that the lug bolts are tight
To ensure safety, always have the lug
bolts checked with a calibrated torque
wrench as soon as possible to ensure that
they are tightened to the specified torque.
Otherwise, incorrectly tightened lug bolts
are a hidden safety risk. The tightening tor‐
que equals 101 lb ft/140 Nm.◀
2. Stow the defective wheel in the cargo area.
The defective wheel cannot be stored un‐
der the floor panel flap due to its size.
3. Check and correct the tire inflation pres‐
sure at the earliest opportunity.
4. Initialize the Flat Tire Monitor, refer to
page 97, or reset the Tire Pressure Moni‐
tor, refer to page 99.
5. Replace the damaged tire as soon as pos‐
sible and have the new wheel/tire bal‐
anced.
Driving with compact wheel
Do not exceed a speed of
50 mph/80 km/h.
Drive conservatively and do not exceed a
speed of 50 mph/80 km/h. Otherwise, changes
in the driving characteristics could result, for
example reduced track stability on braking, ex‐
tended braking distance, and altered self-
steering characteristics in the limit range. In
conjunction with winter tires, these character‐
istics are more pronounced.◀
Only mount one compact wheel
Only one compact wheel may be
mounted. Restore the wheels and tires to their
original size as quickly as possible. Failure to
do so is a safety risk.◀
Vehicle battery
Maintenance
The battery is maintenance-free, i.e., the elec‐
trolyte will last for the life of the battery.
Your service center will be glad to advise you
on questions regarding the battery.
Battery replacement
Use approved vehicle batteries
Only use vehicle batteries that have been
approved for your vehicle by the manufacturer;
otherwise, the vehicle could be damaged and
systems or functions may not be fully availa‐
ble.◀
After a battery replacement, have the battery
registered on the vehicle by your service cen‐
ter to ensure that all comfort functions are fully
available.
Charging the battery
Note
Do not connect the charger to the socket
Do not connect the battery charger to
the socket installed in the vehicle at the factory
as this could damage the battery.◀
General information
Ensure that the battery is sufficiently charged
to achieve the full battery life.
It may be necessary to charge the battery in
the following cases:
▷ When the vehicle is frequently used to
drive short distances.
Seite 304
Mobility Replacing components
304
Online Edition for Part no. 01 40 2 918 440 - III/13
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