2003 MERCEDES-BENZ C320 COUPE Owner's Manual

273 Practical hints
Where will I find ...?
Spare wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for light alloy spare wheel
rim size 4
1/2B x15 H2Refer to “Technical data” section
(
page 313) for model and spare wheel
rim size information.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on level surface. Make sure that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jack stands before working under
the vehicle.
!Wheel bolts2 must be used when
mounting spare wheel rim
size 4
1/2Bx15 H2 (
page 313).
The use of any wheel bolts other than
wheel bolts2 for spare wheel rim
size 4
1/2B x15 H2 can cause physical
damage to the vehicle.
Warning!
G
Be sure to use the original length wheel
bolts when remounting the original wheel af-
ter it has been repaired.

274 Practical hintsUnlocking/locking in an emergency
Unlocking/locking in an emergencyUnlocking the vehicle
Unlocking the driver’s door
If you are unable to unlock the driver’s
door using the SmartKey, open the door
using the mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of ar-
row and slide the mechanical key out of
the housing.3Unlocking
4Locking

Unlock the door with the mechanical
key. To do so, push the mechanical key
in the lock until it stops and turn it to
the left.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button
Œ
or
‹
on the
SmartKey.


Insert the key in the starter switch.

275 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk lid
If you are unable to unlock the trunk lid
with the SmartKey, you can use the emer-
gency release on the inside of the trunk lid
to unlock it.
1Cover
2Release lever
3Rear bench seat backrest

Fold backrest 3 forward.

Remove cover1 from the trim on the
trunk lid.

Push release lever2 all the way to the
right.

Open the trunk lid.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey, lock it with the mechanical
key as follows:
Close the passenger door and the trunk
lid.

Press the central locking switch in the
cockpit (
page 87).

Check to see whether the locking knob
on the passenger door is still visible. If
necessary push it down manually.

Lock the driver’s door with the me-
chanical key.
iThe trunk lid swings open upwards. Al-
ways make sure that there is sufficient
overhead clearance.

276 Practical hintsUnlocking/locking in an emergencyChanging batteries
If the batteries in the SmartKey card 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 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.SmartKey
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Remove mechanical key (
page 274).

Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.

Pull the battery compartment out of the
key housing in direction of arrow.
3Battery
4Contact spring

Remove the batteries.

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

Return battery compartment into hous-
ing until it locks in place.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.

277 Practical hints
Unlocking/locking in an emergency
Fuel filler flap
Open the trunk lid.

Fold right-side tail lamp trim aside

Reach inside through opening.

Turn release knob1 clockwise (arrow).
The fuel filler flap can now be opened.Manually unlocking the transmission
selector lever
In the case of power failure the transmis-
sion selector lever can be manually un-
locked, e.g. to tow the vehicle.
Open the storage compartment in front
of the center armrest.

Release coin holder1 (e.g. using a
small coin).

Swing coin holder1 aside.

Insert a tool2 (e.g. screwdriver) into
the opening.

Perform the following two steps simul-
taneously:
Push the tool down.

Move selector lever from
positionP.

Reinstall the coin holder after removing
the tool from the opening.iThe selector lever is locked again when
moving it to positionP.

278 Practical hintsOpening/closing in an emergency
Opening/closing in an emergencyPanorama sliding/pop-up roof
The panorama sliding/pop-up roof drive is
located behind the lens of the interior over-
head light.
You can open or close the panorama slid-
ing/pop-up roof manually should an elec-
trical malfunction occur.
Pry off lens1 using a screwdriver.

Slide both locking tabs2 in direction of
arrow.

Lower rear of cover and remove.

Remove cover.

Obtain crank3.

Insert crank3 through left hand side
motor hole4.

Turn crank3 clockwise to:

slide roof closed


raise roof at the rear

Turn crank3 counterclockwise to:

slide roof open


lower roof at the rear
The panorama sliding/pop-up roof must be
resynchronized after being operated man-
ually.
iDo not disconnect electrical connec-
tors.

279 Practical hints
Opening/closing in an emergency
Synchronizing the panorama slid-
ing/pop-up roof
Switch on the ignition.

Move the switch in the “close” direc-
tion and wait until the sunshades are
fully closed.
Hold the switch for approximately one
second.

Move the switch in the “open” direction
and wait until the sunshades are fully
opened.
Hold the switch for approximately one
second.

Move the switch in the “open” direction
and wait until the panorama slid-
ing/pop-up roof is approximately 4 in
(10cm) opened.
Hold the switch for approximately one
second.

Move the switch in the “close” direc-
tion and wait until the panorama slid-
ing/pop-up roof is fully closed.
Hold the switch for approximately one
second.
The panorama sliding/pop-up roof is syn-
chronized when the panorama slid-
ing/pop-up roof opens automatically.

280 Practical hintsReplacing bulbs
Replacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies 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 your autho-
rized Mercedes-Benz Center for headlamp
adjustment.
Bulbs Front lamps
iBackup bulbs will be brought into use
when the following lamps malfunction:

Rear fog lamp


Tail lamps


Standing lamps
Lamp
Type
1
Additional turn sig-
nal lamps
LED
2
Turn signal lamp
Halogen headlamp
Turn signal lamp
Bi-Xenon* headlamp
1156A
2357A
3
Low beam Halogen
Low and hi beam*
H7 (55W)
Bi-Xenon*
4
High beam
H7 (55 W)
Parking and stand-
ing lamp
W 5 W
5
Fog lamp
HB4/9006
(55 W)
6
Side marker lamp
W 5 W