dead battery BMW ACTIVEHYBRID X6 2010 Owners Manual

Reference
At a glance
Controls
Driving tips
Mobility
37
Giving and receiving assistance
Jump starting, charging
high-voltage battery
Your BMW ActiveHybrid X6 is equipped with
two types of battery:
>12 Volt battery
>High-voltage battery
If the 12 Volt battery or high-voltage battery is
dead, the combustion engine can be started
with the aid of another vehicle using two jumper
cables.
Only use jumper cables with fully insulated ter-
minal clamps and do not deviate from the
described procedure.
To avoid the risk of potentially fatal injury,
always avoid all contact with electrical
components while the engine is running. Care-
fully adhere to the following sequence, both to
prevent damage to one or both vehicles, and to
guard against possible personal injuries.<
Identifying the dead battery
>Dead 12 Volt battery: Ignition cannot be
switched on.
>Dead high-voltage battery: Ignition can be
switched on. Drive readiness cannot be
activated.
A message appears on the Control Display.
Preparation
1.Check whether the battery of the other
vehicle is a 12 Volt battery and has approxi-
mately the same capacitance in Ah. This
information can be found on the battery.
2.Switch off the engine of the assisting vehi-
cle.
3.Switch off any electrical systems and com-
ponents in both vehicles.
There must not be any contact between
the bodies of the two vehicles, otherwise
there is a danger of shorting.<
Connecting jumper cables
To avoid personal injury from sparks, fol-
low this sequence when connecting
jumper cables.<
In your BMW, the so-called jump-starting termi-
nal in the engine compartment functions as the
positive battery terminal, also refer to the
engine compartment overview on page35. The
cover cap is marked with a + symbol.
1.Fold open the cover of the BMW starting-
aid terminal. To do so, pull the tab.
2.Attach one end of the jumper cable plus/+
to the positive terminal of the battery or a
starting-aid terminal of the vehicle provid-
ing assistance.
3.Attach the second end of the cable to the
positive terminal of the battery or to a start-
ing-aid terminal of the vehicle to be started.
4.Attach one end of the jumper cable minus/–
to the negative terminal of the battery or to
an engine or body ground of the assisting
vehicle.
Your BMW has a special nut as body ground
or negative pole.