Page 287 of 376
287 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 H2For more information on model and spare
wheel rim size, see “Technical data” sec-
tion (
page 326).
!Wheel bolts2 must be used when
mounting spare wheel rim
size 4
1/2Bx15 H2 (
page 326).
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
Make sure to use the original length wheel
bolts when remounting the original wheel af-
ter it has been repaired.
Page 289 of 376
289 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 backrest3 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 88).
Check to see whether the locking knob
on the passenger door is down. If nec-
essary push it down manually.
Lock the driver’s door with the me-
chanical key.
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance. A mini-
mum height clearance of 6.92 ft
(2.11 m) is required to open the trunk
lid.
Page 290 of 376

290 Practical hintsUnlocking/locking in an emergencyChanging batteries in the SmartKey
If the batteries in the SmartKey are dis-
charged, 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.1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key1
(page 288).
Insert mechanical key1 in side open-
ing and push grey 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.
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.
Page 292 of 376
292 Practical hintsOpening/closing in an emergency
Opening/closing in an emergencyPanorama sliding/pop-up roof
You can open or close the panorama slid-
ing/pop-up roof manually should an elec-
trical malfunction occur.
The panorama sliding/pop-up roof drive is
located behind the lens of the interior over-
head light.
Pry off lens1 using a flat blade screw-
driver.
Slide both locking tabs2 in direction
of arrow.
Lower rear of cover and remove.
Remove cover.
Obtain crank3.
Insert crank3 through hole.
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 (page 193).
iDo not disconnect electrical connec-
tors.
Page 295 of 376

295 Practical hints
Replacing bulbs
Replacing bulbs for front lamps
Halogen headlamps
1Bulb socket for turn signal lamp
2Headlamp cover for high beam head-
lamp and for parking and standing
lamp
3Headlamp cover for low beam head-
lamp4Low beam bulb
5High beam bulb
6Parking and standing lamp
Low and high beam bulb
Switch off the lights.
Open the hood (
page 236).
Turn headlamp cover2 or 3 to the
left and remove.
Turn bulb holder with bulb to the left
and pull out.
Pull out the bulb from the base (do not
pull on glass tube).
Insert new bulb so that the base fits in
the bulb holder recess and is level.
Place the bulb holder with bulb on the
headlamp mounting and turn the bulb
holder to the right until it engages.
Replace headlamp cover2 or 3 and
turn to the right until it engages.
Front turn signal lamp bulb
Switch off the lights.
Open the hood (
page 236).
Turn bulb socket1 to the left and pull
out.
Push bulb into socket, turn to the left
and remove.
Insert new bulb in socket, push in and
turn to the right.
Reinsert bulb socket in lamp and turn
to the right.
Page 296 of 376

296 Practical hintsReplacing bulbsParking and standing lamp bulb
Switch off the lights.
Open the hood (
page 236).
Turn headlamp cover2 to the left and
remove.
Pull out the bulb socket with the bulb.
Pull the bulb out of the bulb socket.
Insert a new bulb in the socket.
Reinstall the bulb socket.
Replace headlamp cover2 and turn to
the right until it engages.Bi-Xenon* headlamps
1Bulb socket for turn signal lamp
2Cover for high beam flasher, parking
and standing lamp3Headlamp cover for Bi-Xenon head-
lamp
4High beam bulb for high beam flasher
5Bulb holder
6Parking and standing lamp
High beam bulb for high beam flasher
Switch off the lights.
Open the hood (
page 236).
Turn headlamp cover2 to the left and
remove.
iIf the inside of the headlamps is fogged
up, switch the lights on for a sufficient
amount of time.
Warning!
G
Do not remove the cover
3
for the
Bi-Xenon headlamp. Because of high voltage
in Bi-Xenon lamps, it is dangerous to replace
the bulb or repair the lamp and its compo-
nents. We recommend that you have such
work done by a qualified technician.
Page 297 of 376

297 Practical hints
Replacing bulbs
Turn bulb holder5 with bulb to the left
and pull out.
Pull out bulb from the base (do not pull
on glass tube).
Insert new bulb so that the base fits in
the bulb holder recess and is level.
Place the bulb holder with bulb on the
lamp mounting and turn bulb holder to
the right until it engages.
Install cover2 and turn to the right
until it engages.Front turn signal lamp bulb
Switch off the lights.
Open the hood (
page 236).
Turn bulb socket1 to the left and pull
out.
Push bulb into socket, turn to the left
and remove.
Insert new bulb in socket, push in and
turn to the right.
Reinsert bulb socket in lamp and turn
to the right.Parking and standing lamp bulb
Switch off the lights.
Open the hood (
page 236).
Turn headlamp cover2 to the left and
remove.
Pull out the bulb socket6 with the
bulb.
Pull the bulb out of the bulb socket.
Insert a new bulb in the socket.
Reinstall the bulb socket.
Install cover2 and turn to the right
until it engages.
Page 298 of 376
298 Practical hintsReplacing bulbsSide marker lamp bulb
Switch off the lights.
Carefully slide lamp towards rear.
Remove front end first.
Twist bulb socket counterclockwise
and pull out.
Pull bulb out of the bulb socket.
Insert new bulb in socket.
Reinstall bulb socket, push in and twist
clockwise.
To reinstall lamp, set rear end in
bumper and let front end snap into
place.
Replacing bulbs for rear lamps
Tail lamp assemblies
Switch off the lights.
Open the trunk lid (
page 85).
Turn handles2.
Remove the trim panel1.
Press together the latches1.
Remove bulb holder.
Gently push bulb into socket, turn
counterclockwise and remove.
Insert new bulb and reinstall bulb
socket.
Reinstall trim panel.