BMW M5 Owner's Handbook Manual page 351

WARNING
Connecting the jump leads in the wrong se‐
quence can cause sparks. There is a danger of
injury. Comply with the correct sequence when
connecting up.
NOTE
Contact between the bodies of the two vehi‐
cles can result in a short circuit during starting
assistance. There is a danger of damage to
property. Make sure there is no contact be‐
tween the bodies.
Preparations
1. Check whether the battery in the other vehi‐
cle shows 12 volts. Information about the
voltage is provided on the battery.
2. Switch off the engine of the donor vehicle.
3. Switch off any electrical systems in both vehi‐
cles.
Jump-starting connections
The jump-starting connection in the engine
compartment serves as the positive battery ter‐
minal.
Open the cover of the jump-starting connection.
Online Edition for Part no. 01402989787 - II/18
Breakdown Assist
A special nut is used as the battery negative ter‐
minal.
Connecting the cables
Before starting, switch off all unnecessary power
consumers, such as radio, on the supplying and
receiving vehicle.
1. Open the cover of the jump-starting connec‐
tion.
2. Connect a terminal clamp on the positive/+
jump lead to the positive terminal of the bat‐
tery or the corresponding jump-starting con‐
nection 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 terminal of the bat‐
tery or the corresponding engine or body
earth connection on the donor vehicle.
5. Connect the second terminal clamp to the
negative terminal of the battery or to a corre‐
sponding engine or body earth connection on
the vehicle to be started.
MOBILITY
351