BMW X3 xDrive20i 2013 Owner's Handbook Manual page 273

Do not touch live parts
Do not touch any electrically live parts
when the engine is running, or a fatal accident
could occur.◀
Preparations
1. Check whether the battery in the other ve‐
hicle shows 12 volts. Specifications are on
the battery.
2. Switch off the engine of the donor vehicle.
3. Switch off any electrical systems in both ve‐
hicles.
Avoid contact between the vehicle bodies
The bodies of the two vehicles must not
make contact, otherwise there is the risk of a
short-circuit.◀
Jump-starting connections
Order for connecting
Connect the jump leads in the correct or‐
der to avoid sparks that could cause injury.◀
The jump-starting connection in the engine
compartment serves as the positive battery ter‐
minal.
Online Edition for Part no. 01 40 2 900 867 - 03 12 490
Help in the event of a breakdown
The negative terminal is the body earth or a spe‐
cial nut.
Connecting the cables
1. Pull up the cap of the BMW jump-starting
connection to remove it.
2. Connect a terminal clamp on the positive/+
jump lead to the positive battery terminal or
the corresponding jump-starting connec‐
tion on the donor vehicle.
3. Connect the other terminal clamp to the bat‐
tery's positive terminal or to the correspond‐
ing jump-starting connection on the vehicle
to be started.
4. Connect a terminal clamp on the negative/–
jump lead to the negative battery terminal or
the corresponding engine or body earth
connection on the donor vehicle.
5. Connect the second terminal clamp to the
negative battery terminal or to a ground/
earth connection on the corresponding en‐
gine or body of the vehicle to be started.
Starting the engine
Do not use the spray products sold as starting
aids.
1. Start the engine of the donor vehicle and al‐
low it to run for a few minutes at a slightly
increased idle speed.
For diesel-engined vehicles to be started:
allow the engine of the donor vehicle to run
for approx. 10 minutes.
2. Start the engine of the vehicle to be started
as normal.
Mobility
273