Jump-starting
Notes
If the battery is discharged, an engine can be started using the battery of another vehicle and two jumper cables. Only use jumper cables with fully insulated clamp handles.
To prevent personal injury or damage to both vehicles, adhere strictly to the following procedure.
Do not touch live parts
To avoid the risk of potentially fatal injury,
always avoid all contact with electrical components
while the engine is running.◄
Preparation
1. Check whether the battery of the other vehicle
has a voltage of 12 volts. This information
can be found on the battery.
2. Switch off the engine of the assisting vehicle.
3. Switch off any electronic systems/power
consumers in both vehicles.
Bodywork contact between vehicles
Make sure that there is no contact between
the bodywork of the two vehicles; otherwise,
there is the danger of short circuits.◄
Starting aid terminals
Connecting order
Connect the jumper cables in the correct
order; otherwise, there is the danger of injury
from sparking.◄
The so-called starting aid terminal in the engine compartment acts as the battery's positive terminal.
The body ground or a special nut acts as the negative terminal.
Connecting the cables
1. Pull off the cap of the BMW starting aid terminal.
2. Attach one terminal clamp of the positive
jumper cable to the positive terminal of the
battery, or to the corresponding starting aid
terminal of the assisting vehicle.
3. Attach the other end of the cable to the positive
terminal of the battery, or to the corresponding
starting aid terminal of the vehicle
to be started.
4. Attach one terminal clamp of the negative
jumper cable to the negative terminal of the
battery, or to the corresponding engine or
body ground of assisting vehicle.
5. Attach the other end of the cable to the negative
terminal of the battery, or to the corresponding
engine or body ground of the vehicle
to be started.
Starting the engine
Never use spray fluids to start the engine.
1. Start the engine of the assisting vehicle and
let it run for several minutes at an increased
idle speed.
2. Start the engine of the vehicle being started
in the usual way.
If the first starting attempt is not successful, wait a few minutes before making another attempt in order to allow the discharged battery to recharge.
3. Let both engines run for several minutes.
4. Disconnect the jumper cables in the reverse
order.
Check the battery and recharge if necessary.
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