Page 63 of 272

iCanada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1.This device may not cause interference,
and
2. this device must accept any
interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Factory setting
XGlobal unlocking: Press button %.
Unless you open a door or the tailgate within
approximately 40 seconds after unlocking
the vehicle:
RThe vehicle will be locked again.
RThe anti-theft alarm system will be
rearmed.
XGlobal locking: Press button &.
Selective setting
If you frequently travel alone, you may wish
to reprogramm the SmartKey. Pressing
button % will then only unlock the driver’s
door and the fuel filler flap.
XSwitching on/off: Press and hold buttons
% and & simultaneously for
approximately 6 seconds until the battery
check lamp (Y page 61) flashes twice.
The SmartKey will then function as follows:
XUnlocking driver’s door and fuel filler
flap: Press button % once.
XGlobal unlocking: Press button %
twice.
XGlobal locking: Press button &.Checking SmartKey batteriesXPress button & or % on the
SmartKey.
Battery check lamp : comes on briefly to
indicate that the SmartKey batteries are in
order.
If the battery check lamp does not come on
briefly during check, the SmartKey batteries
are discharged.
XReplace the batteries (Y page 232).
iYou can obtain the required batteries at
any authorized Mercedes-Benz Center.
iIf the batteries are checked within signal
range of the vehicle, pressing button
& or % will lock or unlock the vehicle
accordingly.
Loss of the SmartKey
If you lose your SmartKey or mechanical key,
you should do the following:
XHave the SmartKey deactivated by an
authorized Mercedes-Benz Center.
XReport the loss of the SmartKey or the
mechanical key to your car insurance
company immediately.
XHave the mechanical lock replaced if
necessary.
Any authorized Mercedes-Benz Center will be
glad to supply you with a replacement. For
information on replacing the SmartKey, see
“Replacing the SmartKey” (Y page 62).
Locking and unlocking61Controls in detail463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 61Z
Page 235 of 272

When replacing batteries, always replace
both batteries.
iThe required replacement batteries are
available at any authorized Mercedes-Benz
Center.
Replacement batteries: Lithium, type
CR 2025 or equivalent.
XRemove the mechanical key from the
SmartKey (Y page 228).
XPress mechanical key ; into the SmartKey
opening until battery compartment
cover : opens. Do not keep the cover
shut.
XRemove the battery compartment cover.XPat the SmartKey against the palm of your
hand until battery = falls out.
XInsert the new battery with the positive
terminal (+) facing up. Use a lint-free cloth.
XInsert the tabs of the battery compartment
cover into the housing and press the cover
closed.
XCheck the operation of the SmartKey.
Replacing bulbs
Safety notes
Safe vehicle operation depends on proper
exterior lighting and signaling to a large
degree.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. Contact an
authorized Mercedes-Benz Center for
headlamp adjustment.
GWarning!
Bulbs and bulb sockets can be very hot. Allow
the lamp to cool down before changing a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you
Rtouch or move it when hot
Rdrop the bulb
Rscratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iSince replacing bulbs is a technically
highly demanding process, we recommend
to have them replaced at an authorized
Mercedes-Benz Center.
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of high
humidity, driving the vehicle a distance with
the lights on should clear up the fogging.
Replacing bulbs233Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 233Z
Page 253 of 272
Opening fuse boxXUnscrew mounting screws :.XRemove cover ; 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 Center.
! A fuse box cover must be properly
positioned as described. Otherwise,
moisture or dirt could enter a fuse box and
possibly impair fuse operation.
Fuses251Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 251Z