BMW SERIE 7 2000 Owner's Manual download pdf (Page 180)

178n

Battery

Charge condition – BMW 740i/L

You can read the charge condition

of the battery with the "Magic Eye

*"

(a hydrometer):

> Green: Adequate charge

> Black: Not charged adequately. The

battery must be recharged. Please

contact your BMW center

> Yellow: Replace the battery.

The service life specified for the

battery can be achieved only if it is

always kept adequately charged.

Check the charge condition of the bat-

tery frequently if the vehicle is used pri-

marily for driving short distances.<

380de655

Charging the battery

Charge the battery in the vehicle only

when the engine is off. Charge the bat-

tery using the supplementary positive

terminal and ground (terminal) in the

engine compartment (refer to "Jump-

starting" on page 183).

On the BMW 750iL, there is an auto-

matic switch between the two batteries

during charging.

Before performing any work on

the electrical system, disconnect

the cable from the negative terminal. If

you do not, short circuits can create the

risk of fire or personal injury.

If a jump start is necessary, connect the

cables only to the auxiliary terminal for

jump starting and a ground in the en-

gine compartment in order to avoid

damage to the batteries (refer to

"Jump-starting" on page 183).<

If you plan to park the vehicle longer

than 4 weeks, disconnect the battery

from the vehicle's electrical system by

disconnecting the cable from the nega-

tive terminal. Then have the battery

charged with an appropriate battery

charger.

If the vehicle will not be driven for a

period longer than 12 weeks, have the

battery removed, charged and store it

in a clean and cool (frost-free) area.

Recharge the battery at least every

three months during storage. Also,

recharge the battery before it is in-

stalled. If you fail to do so, it will not be

serviceable. Every time the battery is

discharged, especially over extended

periods, its service life is reduced.

Avoid environmental pollution

when disposing of old batteries.<

Return used batteries to a recy-

cling point or to your BMW center.

Maintain the battery in an upright posi-

tion for transport and storage. Secure

the battery against tilting in transit.<

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