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Vehicle battery – BMW X3 xDrive30i 2009 User Manual

Page 121

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Refere

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Controls

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Mobi

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119

Protect valve stems with valve stem
seal caps from dirt and contamina-

tion. Dirt in valve stems is a frequent source
of gradual air loss.

<

4.

Reinitialize the Flat Tire Monitor

*

or reset

the Tire Pressure Monitor

*

, refer to

pages

54

,

55

.

Do not initialize the Flat Tire Monitor
when driving with a compact wheel.

<

5.

Replace the defective tire as soon as possi-
ble and have the new wheel/tire balanced.

Driving with compact wheel

Drive reservedly and do not exceed a speed of
50 mph/80 km/h.
Mounting the compact wheel can change the
driving characteristics. For example, it can
reduce tracking stability during braking, extend
braking distances, and alter self-steering char-
acteristics in the limit range. With winter tires,
these characteristics are more pronounced.

Only one compact wheel may be
mounted. You should re-equip with

wheels and tires of the original size as soon as
possible.

<

Vehicle battery

Maintenance

The battery is 100% maintenance-free, i.e., the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate. Your BMW Sports Activity Vehicle Center
will be happy to advise you on all questions con-
cerning the battery.

Warning lamp

The warning lamp lights up. The battery
is no longer being charged. The alterna-
tor V-belt is defective or there is a mal-

function in the charge current circuit of the
alternator. Have the system checked immedi-
ately.

Do not continue driving if the V-belt is
defective. The engine could be damaged

due to overheating.
Moreover, an increased amount of force is
required for steering if there is a sharp drop in
the onboard supply voltage.

<

Charging battery

Charge the battery in the vehicle only when the
engine has been switched off. For connections,
refer to Jump starting on page

122

.

Disposal

Have old batteries disposed of following
replacement at your BMW Sports Activity

Vehicle Center or bring them to a collection
point. Maintain the battery in an upright position
for transport and storage. Always secure the
battery to prevent it from tipping over during
transport.

<

Power failure

After a temporary power supply interruption,
some equipment is subject to limited use and
must be reinitialized. Individual settings are also
lost and must be updated again:

>

Panorama glass sunroof
It may be only possible to raise the sunroof.
The system must be initialized, refer to
page

24

.

>

Power windows
The pinch protection system must be reini-
tialized, refer to page

23

.

>

Seat and mirror memory
The positions must be stored again, refer to
page

31

.

>

Time
Must be set again, refer to page

47

.

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