Mercedes-Benz CL-Class 2006 Owner's Manual page 515

Practical advice
Batteries
G
Risk of injury
Mercedes-Benz recommends that, for safety
reasons, you only use batteries which have
been tested and approved for your vehicle
by Mercedes-Benz. These batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event
of an accident.
To prevent acid burns, observe the following
safety notes when handling batteries:
Do not lean over batteries.
Do not place any metal objects on a bat-
tery. You could otherwise cause a short
circuit and the battery's highly flamma-
ble gas mixture could ignite.
Make sure that you do not create elec-
trostatic charge, e.g. by wearing syn-
thetic clothing or as a result of friction
on fabrics. You should not therefore pull
or slide the battery over carpets or other
synthetic materials.
494
Never touch the battery first. To dis-
charge a possible electrostatic charge,
step out of the vehicle first and touch
the bodywork.
Do not wipe the battery using a cloth.
The battery may explode as a result of
electrostatic charge or through the cre-
ation of sparks.
!
Switch off the engine and the internal func-
tions of the vehicle network ( page 495) before
disconnecting or removing the terminal clamps
of the battery. You may otherwise destroy elec-
tronic components such as the alternator.
Have the starter battery checked and, if neces-
sary, replaced at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre, every two
years or 20,000 km.
!
Do not connect consumers directly to the
starter battery. This would discharge the starter
battery.
i
Only replace a defective battery with a bat-
tery recommended by Mercedes-Benz. The con-
sumer battery is fitted in the boot in a way
designed to afford it maximum protection
against damage in the event of a collision.
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Remove the key when you have parked the
vehicle and do not require any electrical con-
sumers. The vehicle then requires only a minimal
amount of energy and the consumer battery is
conserved.
P54.10-2692-31
Starter battery
1 Negative terminal
2 Positive terminal
i
If the consumer battery is discharged, it will
be necessary to unlock the vehicle using the
emergency key element. However, it is still pos-
sible to start the vehicle because it has a sepa-
rate starter battery.