BMW XM Owner's Manual page 383

NOTICE
Swapping the positive and negative termi-
nals can permanently damage components
of the hybrid system or the vehicle electron-
ics. There is a risk of damage to property. Be
careful not to swap the positive and negative
terminals. Take note of the sign next to the
positive terminal.
Preparation
1. Check whether the battery of the other ve-
hicle has a voltage of 12 volts. The voltage
information can be found on the battery.
2. Switch off the engine of the assisting vehi-
cle.
3. Switch off any electrical components in
both vehicles.
Jump-start terminals
The jump-start terminals are located in the en-
gine compartment.
Additional information:
For an overview, refer to page 362.
Open the covers of the jump-start terminals.
Connecting the cables
Before you begin, switch off all unnecessary
electronic systems/components such as the
radio on the assisting and receiving vehicles.
1. Open the lid of the jump-start terminal.
2. Attach one terminal clamp of the positive
jumper cable to the positive battery termi-
nal, or to the corresponding jump-start ter-
minal of the vehicle providing assistance.
3. Attach the terminal clamp on the other end
of the cable to the positive battery terminal,
or to the corresponding jump-start terminal
of the vehicle to be started.
4. Attach one terminal clamp of the negative
jumper cable to the negative battery termi-
Breakdown Assistance
Online Edition for Part no. 01405A8A608 - VI/23
nal, or to the corresponding engine or body
ground of assisting vehicle.
5. Attach the second terminal clamp to the
negative battery terminal, or to the corre-
sponding engine or body ground of the ve-
hicle to be started.
Establishing drive-ready state
1. Start the engine of the assisting vehicle and
let it run for several minutes at an increased
idle speed.
If the vehicle to be started has a diesel en-
gine: let the engine of the assisting vehicle
run for approx. 10 minutes.
2. Establish the drive-ready state for the vehi-
cle to be started as usual.
If the first attempt to start the engine is not
successful, wait a few minutes before mak-
ing another attempt in order to allow the
discharged battery to recharge.
3. Disconnect the jumper cables in the reverse
order.
Check the battery and recharge, if needed.
Tow-starting and towing
Safety information
Warning
Individual functions may not work correctly
when towing with Forward Collision Mitiga-
tion enabled or Cruise Control switched on.
There is a risk of accident. Switch off Forward
Collision Mitigation and Cruise Control before
towing.
MOBILITY
383