Mercedes-Benz R-Class 2008 Owners Manual User Manual

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504

Practical hints

Battery

The battery is a valve-regulated lead acid

(VRLA) battery, also referred to as “fleece”
battery. Such batteries do not require topping-up
of the electrolyte level. VRLA batteries therefore
do not have cell caps and the battery cover is
non-removable. Do not attempt to open the
battery as otherwise the battery will be dam-
aged.

Even though VRLA batteries do not require
topping-up of the electrolyte level and cannot be
opened to check the electrolyte level, the
battery condition must be checked periodically
by performing a battery conductance test. Refer
to Maintenance Booklet for battery condition
testing intervals.

As with any other battery, the battery may
discharge if the vehicle is not operated for an
extended period of time. You can connect a
battery maintenance charge unit tested and
approved for use on your vehicle model or dis-
connected the battery to prevent battery dis-
charge. Contact an authorized Mercedes-Benz
Light Truck Center for more information.

The factory-equipped VRLA battery is

leak-proofed. Only use a battery as replacement
that has the same security features and is of
identical size, voltage, and capacity as the
factory-equipped battery.

The battery, the battery ventilation and the later-
al plug must always be securely installed when
the vehicle is in operation.

Warning!

Jump starting must only be done using the

jump-start contacts located in the engine

compartment (

୴

page 511).

Warning!

Failure to follow these instructions can re-

sult in severe injury or death.

Observe all safety instructions and precau-

tions when handling automotive batteries