2005 MERCEDES-BENZ C WAGON Owner's Manual

327 Practical hints
Unlocking/locking in an emergency

Remove cover2 from the trim on the
tailgate.

Push release lever1 all the way to the
right.

Lift the tailgate.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey, do the following:
Close the passenger doors and the
tailgate.

Press the central locking switch in the
center console (
page 96).

Check to see whether the locking
knobs on the passenger doors have
moved down.

If necessary push them down manually.
Except for the driver’s door, the vehicle
should now be locked.1Locking

Insert the mechanical key into the
driver’s door lock until it stops.

Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
!Always make sure there is sufficient
overhead clearance.iIf the vehicle has previously been
locked from the outside using the
SmartKey, opening the tailgate from
the inside will trigger the anti-theft
alarm system*.
To cancel the alarm, do one of the
following:

Press buttonŒ or‹ on the
SmartKey


Insert the SmartKey in the starter
switch

328 Practical hintsUnlocking/locking in an emergencyFuel filler flap
In case the central locking system does
not release the fuel filler flap, you can open
it manually.

Open the tailgate.

Press button1.

Fold down trim panel2.

Reach inside through opening3 in
direction of arrow.

Turn release knob4 clockwise
(arrow).
The fuel filler flap can now be opened.
Manually unlocking the transmission
gear selector lever
In the case of power failure the transmis-
sion gear selector lever can be manually
unlocked, e.g. to tow the vehicle.
Slide out the swiveling cup holder
(page 236).1Tool

Insert a tool1 (e.g. flat blade
screwdriver) into the opening.

Perform the following two steps
simultaneously:
Press tool1 forward in the
direction of arrow.

Move gear selector lever from
positionP.

Remove tool1 from the opening.
Warning!
G
If you operate the emergency release
button, be careful of the sharp edges so that
you do not injure yourself.
iThe gear selector lever is locked again
when moving it to positionP.

329 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
Power tilt/sliding sunroof*
You can open or close the tilt/sliding
sunroof manually should an electrical
malfunction occur.
The tilt/sliding sunroof drive is located
behind the lens1 of the interior overhead
light.
Remove SmartKey from the starter
switch.

Pry off lens1 using a flat blade
screwdriver.

Slide both locking tabs2 in direction
of the arrows.

Lower the rear of the cover and
remove.

Remove the cover.

Take the crank3 out of the Operator’s
Manual pouch.

Insert crank3 through hole on the left
side.

Turn crank3 clockwise to:

slide sunroof closed


raise sunroof at the rear

Turn crank3 counterclockwise to:

slide sunroof open


lower sunroof at the rear
iDo not disconnect electrical
connectors.
iTurn crank3 slowly and smoothly.
The tilt/sliding sunroof must be
synchronized after being operated
manually (
page 222).

330 Practical hintsReplacing SmartKey batteriesIf 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
authorized Mercedes-Benz 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.Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, 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
Center.

331 Practical hints
Replacing SmartKey batteries
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key
(page 326).
1Mechanical key
2Battery compartment

Insert mechanical key1 in side
opening and push grey slide.
Battery compartment2 is unlatched.

Pull battery compartment2 out of the
housing in direction of arrow.

Remove the batteries.
3Battery
4Contact spring

Using a lint-free cloth, insert new
batteries3 under contact spring4
with the plus (+) side facing up.

Return battery compartment2 into
housing until it locks into place.

Slide mechanical key1 back into the
SmartKey.

Check the operation of the SmartKey.

332 Practical hintsReplacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp
assemblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp
adjustment.
Bulbs
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.iSubstitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction dis-
play (
page 301)

333 Practical hints
Replacing bulbs
Front lamps Rear lamps
Lamp
Type
1
Additional turn signal
lamp
LED
2
Halogen headlamp:
Turn signal lamp
Bi-Xenon* headlamp:
Turn signal lamp
1156 A
2357 A
3
Halogen headlamp:
Low beam
Bi-Xenon* headlamp:
Low and high beam
1
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Xenon bulbs yourself. See an
authorized Mercedes-Benz Center.
H7 (55 W)
D2S-35 W
Lamp
Type
4
Halogen headlamp:
High beam/high beam
flasher
Bi-Xenon* headlamp:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lamp
W5W
5
Front fog lamp
HB4/9006
(55 W)
6
Side marker lamp
W5W
Lamp
Type
7
High mounted brake
lamp
LED
8
Brake lamp
P21W
9
Turn signal lamp
PY 21 W
a
Backup lamp
P21W
b
License plate lamps
C5W
c
Rear fog lamp (driver’s
side only), tail, parking,
standing and side
marker lamp
P 21/4 W

334 Practical hintsReplacing bulbs
Notes on bulb replacement

Only use 12 volt bulbs of the same type
and with the specified watt rating.


Switch lights off before changing a bulb
to prevent short circuits.


Always use a clean lint-free cloth when
handling bulbs.


Your hands should be dry and free of oil
and grease.


If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:


Additional turn signals in the
exterior rear view mirrors


High mounted brake lamp


Xenon* lamps


Front fog lamps
Warning!
G
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

touch or move it when hot


drop the bulb


scratch 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.
iHave the headlamp adjustment
checked regularly.