160n
Battery Fuses
Battery posts, terminals and other 
components contain lead and lead 
compounds. Wash hands after 
handling.< 
Battery careThe battery is maintenance-free, that is, 
the original electrolyte will normally last 
for the service life of the battery under 
moderate climatic conditions.
For all questions that regard the 
battery, please consult your BMW 
center. The battery is completely main-
tenance-free; the following section is 
provided for your information only.<
Do not disconnect the battery 
when the engine is running, as the 
ensuing voltage surge would damage 
the vehicle's onboard electronics.<
Charging the batteryWhen charging the battery in the 
vehicle, leave the engine off at all times. 
Connect the charge cables to the termi-
nals in the engine compartment (for 
terminal locations, refer to "Jump-
starting" on page 162.
Return used batteries to a recy-
cling point or your BMW center. 
Maintain the battery in an upright posi-
tion for transport and storage. Secure 
the battery against tilting during trans-
port.<
In the glove compartmentOpen the glove compartment and turn 
the two white quick-release fasteners 
to the left.390de085 
162n
Do not use spray starter fluids to start 
the engine.
When your battery is discharged you 
can used two jumper cables to start 
your car with power from the battery in 
a second vehicle. You can also use the 
same method to help start another 
vehicle. Always use jumper cables with 
fully insulated handles on the terminal 
clamps.
Do not touch high-voltage wiring 
and cables on a running engine. 
Contact with components carrying high 
voltage can be harmful or fatal. Care-
fully observe the following instructions 
to avoid personal injury and/or damage 
to one or both vehicles.< 
1. Ensure that the battery in the 
support vehicle is also rated at 
12 volts. This information is 
provided on the top of the battery 
casing
2. Do not disconnect your battery from 
your vehicle's electrical system. 
Switch off all electrical accessories 
in both vehicles
3. Make absolutely certain that there 
is no contact between the body-
work of the two vehicles Ð short 
circuit hazard
4. Start the engine on the support 
vehicle and allow it to run
5. Use one jumper cable (+) to 
connect the positive terminal of the 
battery in the support vehicle with 
the auxiliary positive terminal 
provided in the engine compart-
ment of your BMW specifically for 
jump-starting. The cover on this 
auxiliary terminal is identified by a 
"+" symbol, refer to the illustration. 
Pull up to open the cover390de690
6. Next, connect one end of the other 
jumper cable (Ð) to either the 
support vehicle's negative battery 
terminal or a suitable ground on its 
engine or bodywork. Connect the 
other end to the negative battery 
terminal or a suitable ground on the 
vehicle being started. There is a 
special nut on the strut dome of 
your BMW; refer to the arrow in the 
illustration
Always adhere to this sequence 
when connecting jumper cables; 
failure to observe this procedure can 
lead to sparks at the battery terminals 
and pose an injury hazard.< 390de146
Jump-starting