Page 289 of 376
289 Practical hints
Where will I find ...?
Vehicles with spare wheel
1Spare wheel
2Electric air pump
3Vehicle tool kit
4Battery for electrical consumers5Jack (under spare wheel)
6Wheel wrench (under spare wheel)Vehicles with TIREFIT kit
1TIREFIT kit
2Electric air pump
3Vehicle tool kit
4Battery for electrical consumers
5Wheel wrench
6Jack
Page 290 of 376
290 Practical hintsLocking/unlocking in an emergency
Locking/unlocking in an emergencyUnlocking the vehicle
Unlocking the driver’s door
If you are unable to unlock the driver’s
door using the key, open the door using
the mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab 1 direction of arrow
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
key.
Insert the key in the starter switch.
Press the KEYLESS-GO* start/stop
button (
page 30).
Page 291 of 376

291 Practical hints
Locking/unlocking in an emergency
Unlocking the trunk
If you are unable to unlock the trunk with
the key, open the trunk with the mechani-
cal key as follows:Trunk lid lock1Unlocking
Insert the mechanical key into the
trunk lid lock.
Perform the following two steps simul-
taneously:
Turn the key counterclockwise to
position 1.
Pull the trunk lid handle and lift lid.Unlocking interior storage compart-
ments
Locking storage areas in the passenger
compartment include:
the glove box
the storage space under the armrest
the rear storage compartments
If these cannot be unlocked by means of
the key, the KEYLESS-GO* card or the cen-
tral locking button, use the mechanical key
to open the glove box.1Separately unlock storage compart-
ments
2Centrally lock/unlock storage com-
partments
3Separately lock storage compartments
Slide mechanical key out of key hous-
ing (
page 290).
Insert the mechanical key into the
glove box lock and turn it to position 2.
All storage compartments are now un-
locked.
iThe storage space under the armrest
and the rear storage compartments
can only be unlocked using the me-
chanical key at the glove box lock.
Page 292 of 376

292 Practical hintsLocking/unlocking in an emergencyLocking the vehicle
If you are unable to lock the vehicle with
the electronic key, lock it with the mechan-
ical key as follows:
Close the passenger door and the
trunk.
Press the central locking switch in the
cockpit (
page 91).
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.
Lock the trunk if necessary with the
mechanical key (
page 83).Lowering the Easy Pack feature
manually
If the Easy Pack feature does not fully low-
er the retractable hardtop into the trunk
compartment and you are unable to close
the trunk lid, follow the instructions below.
1Hex-socket wrench
2Locking screw
Remove the trunk floor from the trunk.
Lift up the lid located at the lower left
side of the trunk.
Have a second person lift and hold the
retracted hardtop.
Using the hex-socket wrench provided
in the vehicle tool kit, carefully turn the
locking screw 2 approximately one
quarter turn.
Hook luggage cover into holders
(page 160).
Let go of the hardtop.
It should gradually lower into the trunk.
When top is completely lowered, return
locking screw 2 to its original position.
Close the lid.
Replace the trunk floor.
Visit an authorized Mercedes-Benz
Center as soon as possible.!Do not overtighten the screw.
Page 293 of 376

293 Practical hints
Locking/unlocking in an emergency
Changing batteries
If the batteries in the key or the KEY-
LESS-GO* card are discharged, the vehicle
can no longer be locked or unlocked. It is
recommended to have the batteries re-
placed 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.Key
1Mechanical key
2Unlatching battery compartment
3Pulling out battery compartment
4Mechanical key locking tab
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key1
(page 290).
Insert the mechanical key in side open-
ing and push gray slide in direction of
arrow2.
The battery compartment is unlatched.
Pull the battery compartment out of the
key housing in direction of arrow3.
Remove the batteries.
5Battery
6Contact spring
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 locked 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 re-
placement batteries are available at
any Mercedes-Benz Center.
Page 294 of 376
294 Practical hintsLocking/unlocking in an emergencyKEYLESS-GO card*
1Battery cover
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Pry open the cover 1.
Remove the batteries.
Install new batteries as indicated by
the “+” and “-” markings in the KEY-
LESS-GO card.
Replace battery cover 1.
Page 295 of 376
295 Practical hints
Replacing bulbs
Replacing bulbs
Bulbs
Safe 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
iIf the headlamps are fogged up on the
inside as a result of high humidity, driv-
ing the vehicle a distance should clear
up the fogging.
iBackup bulbs will be brought into use
when the following lamps malfunction:
Turn signal lamps
Brake lamps
Parking lamps
Tail lamps
Page 296 of 376
296 Practical hintsReplacing bulbsFront lamps Rear lamps
Lamp
Type
1
Additional turn
signal
LED
2
Turn signal lamp
1156 A
3
Low beam
1
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Xenon and Bi-Xenon* bulbs your-
self. See your authorized Mercedes-Benz Center.
Xenon D2S-35 W
4
High beam
H7 (55 W)
Parking and
standing lamps
W 5 W
5
Fog lamp
HB4/9006 (55 W)
6
Side marker
lamp
W 5 W
Lamp
Type
7
Rear fog lamp,
driver’s side;
replacement
P 21 W
1156/32 cp
8
High mounted
brake lamp
LED
9
Backup lamp;
replacement
P 21 W
1156/32 cp
10
Tail, parking and
standing lamp,
side marker
LED
11
Tail, parking and
standing lamp,
brake lamp
LED
12
License plate
lamps
C 5 W
13
Turn signal
lamp;
replacement
P 21 W
1156/32 cp