Connecting Jumper Cables - BMW 525i Owner's Manual

Connecting jumper cables

To avoid personal injury from sparks,
always observe this sequence when con-
necting jumper cables.<
On your BMW the so-called starting-aid termi-
nal in the engine compartment acts as the bat-
tery positive terminal, also refer to the engine
compartment overview on page 194. The cover
cap is marked with +.
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.
5. Attach the second end of the cable to the
negative terminal of the battery or to the
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engine or body ground of the vehicle to be
started.
Starting engine
1. Start the engine on the assisting vehicle
and allow it to run for several minutes at
increased speed.
2. Start the engine on the other vehicle in the
usual way.
If the first start attempt is not successful,
wait a few minutes before another attempt
in order to allow the discharged battery to
recharge.
3. Let the engines run for a few minutes.
4. Disconnect the jumper cables by reversing
the connection sequence.
Check the battery and recharge if necessary.
Never use spray fluids to start the
engine.<
Towing and tow-starting
Always observe all applicable towing laws
and regulations.<
Never allow passengers to ride in a towed
vehicle for any reason.<
Using tow fitting
The screw-on tow-fitting must always be car-
ried in the vehicle. It can be screwed in at the
front or rear of the BMW.
Sedan:
It is located in the toolkit in the luggage com-
partment lid, refer to page 200.
Sports Wagon:
It is located in the toolkit behind the left side
panel in the cargo area, refer to page 200.
In order to avoid damaging the tow fitting
and the vehicle, please follow these
instructions: use only the tow fitting provided
with the vehicle and screw it all the way in. Use
the tow fitting for towing only on roads. Avoid
lateral loading of the tow fitting, e.g. do not lift
the vehicle by the tow fitting.<