BMW X3 2018 Owner's Manual page 342

MOBILITY
Installing the tail light
1. Install the tail light in reverse order of removal
and attach the connector.
2. Install the holder for the warning triangle and
attach the warning triangle.
3. Close the cover on the side trim in the cargo
area.
4. Fasten the cover with the clip.
Reversing light in the tailgate
General information
Follow the safety information, refer to page 337.
21-watt bulb, H21W.
Access to the light
1. Open the tailgate.
2. Pull out the cover at the recessed grip, arrow.
Replacing a bulb
1. Pull the bulb holder out of the reflector.
2. Press the bulb gently into the bulb holder,
turn counterclockwise and remove it.
3. To insert the new bulb and attach the bulb
holder, proceed in reverse order of removal.
Vehicle battery
General information
The battery is maintenance-free.
The added amount of acid is sufficient for the
service life of the battery.
342
Replacing components
Online Edition for Part no. 01402989843 - II/18
More information about the battery can be re‐
quested from a dealer's service center or another
qualified service center or repair shop.
The manufacturer of your vehicle recommends
that you have a dealer's service center or another
qualified service center or repair shop register
the vehicle battery to the vehicle after the battery
has been replaced. Once the battery has been
registered again, all comfort features will be avail‐
able without restriction and any Check Control
messages displayed which relate to comfort fea‐
tures will disappear.
Safety information
NOTE
Vehicle batteries that are not compatible can
damage vehicle systems and impair vehicle
functions. There is a risk of personal and prop‐
erty damage. Only vehicle batteries that are
compatible with your vehicle type should be in‐
stalled in your vehicle. Information on compati‐
ble vehicle batteries is available at your dealer's
service center.
Charging the battery
General information
Make sure that the battery is always sufficiently
charged to guarantee that the battery remains
usable for its full service life.
A discharged battery is indicated by a red
indicator light.
The battery may need to be charged in the fol‐
lowing cases:
▷ When making frequent short-distance drives.
▷ If the vehicle is not used for more than a
month.