374 Practical hints
Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Light Truck Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling. Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key from the
SmartKey (
page 368).
1 Mechanical key
2 Slide
3 Battery compartment
Insert mechanical key 1 in direction
of the arrow in side opening.
Using mechanical key 1, push gray
slide 2 to unlatch battery
compartment 3.
Pull battery compartment 3 out of the
housing in direction of the arrow. 4
Battery
5 Contact spring
Remove discharged batteries 4 in
direction of the arrow.
Using a lint-free cloth, insert new
batteries under contact spring 5 with
the positive terminal (+) facing up.
Return battery compartment 3 into
the housing until it locks into place.
Slide mechanical key 1 back into the
SmartKey.
Check the operation of the SmartKey.
Warning!G
Keep the batteries out of reach of children.
If a battery is swallowe d, seek medical help
immediately.
iWhen inserting the batteries, make sure
they are clean and free of lint.
iWhen replacing batteries, always replace
both batteries.
The required replacement batteries are available
at any Mercedes-Benz Light Truck Center.
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406 Practical hints
Fuses
Opening fuse box
Open the rear door on the passenger
side.
1 Mounting screw
2 Cover
Unscrew mounting screws 1.
Remove cover 2 in direction of the
arrow.
Fuse box in battery box
The battery box is located under a cover in
the rear footwell.
Replacement of fuses can only be
performed at a Mercedes-Benz Light Truck
Center.
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