Page 250 of 356
250 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
?
The yellow “CHECK ENGINE”
malfunction indicator lamp
comes on while driving.
There is a malfunction in:
The fuel management system
The ignition system
The emission control system
Systems which impact emissions
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode.
Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
codes. It is located in the front left
area of the footwell next to the park-
ing brake pedal.
The fuel cap is not closed tight.
Check the fuel cap.
Your gas tank is empty.
After refuelling start the engine three
or four times in succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.
<
The red seat belt warning lamp
blinks for a brief period after
starting the engine.
The warning lamp reminds you to fasten seat
belts.
Fasten your seat belt.
The yellow fuel tank reserve warning lamp
lights up while driving.
The fuel level has gone below the reserve
mark.
Refuel at the next gas station
(page 224).
Page 251 of 356
251 Practical hints
What to do if …
Lamp in center consoleProblem
Possible cause
Suggested solution
7
The indicator lamp lights up.
A BabySmart
TM child seat is installed on the
front passenger seat. Therefore the front
passenger airbag is switched off.
The system is malfunctioning when there is
no BabySmart
TM child seat installed on the
front passenger seat.
Have the system checked as soon as
possible by an authorized
Mercedes-Benz Center.
7
The indicator lamp does not light
up with a BabySmart
TM child
seat properly installed on the
front passenger seat.
The system is malfunctioning.
Make sure that there is nothing be-
tween seat cushion and child seat and
check installation of the child seat.
If the light remains out, have the sys-
tem checked as soon as possible by
an authorized Mercedes-Benz Center.
Do not use the BabySmart
TM restraint
to transport children on the front pas-
senger seat until the system has been
repaired.
Page 267 of 356
267 Practical hints
What to do if …
Display
Possible cause
Suggested solution
.
TAIL LAMP, R
CHECK LAMP!
SUBSTITUTE LAMP ON!
The right tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
SIDE MARKER LAMP, LF
CHECK LAMP!
SUBSTITUTE LAMP ON!
The left side marker lamp is malfunction-
ing. A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
SIDE MARKER LAMP, RF
CHECK LAMP!
SUBSTITUTE LAMP ON!
The right side marker lamp is malfunction-
ing. A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
LIGHTS
TURN OFF LAMPS!
This display appears if the driver’s door is
opened with the engine shut off and no
key in the starter switch.
Insert key in the starter switch.
Switch off lights.
AUTOM. LIGHT ON
REMOVE KEY!
Key in the starter switch position1 or2.
Remove key from the starter switch.
!
(Canada only)
;
(USA only)
PARKING BRAKE
RELEASE PARKING BRAKE!
You are driving with the parking brake set.
Release the parking brake
(page 46).
<
SEAT BELT SYSTEM
VISIT WORKSHOP!
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 281 of 356
281 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement
Use only 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 light
up, visit an authorized Mercedes-Benz
Center.
Have the LEDs and bulbs for the follow-
ing lamps replaced by an authorized
Mercedes-Benz Center.
Additional turn signals in the exteri-
or rear view mirrors
High mounted brake lamp
Xenon lamps
Front fog lamps
Lamp
Type
7
High mounted brake
lamp
LED
8
License plate lamps
C5W
9
Brake lamp
P 21 W (21W)
Turn signal lamp
PY21W (21W)
Tail, parking stand-
ing and side marker
lamp
W5W (5W)
Rear fog lamp, driv-
er’s side
P21W (21W)
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
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.
Page 282 of 356
282 Practical hintsReplacing bulbsReplacing 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 226).
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 226).
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 283 of 356
283 Practical hints
Replacing bulbs
Parking and standing lamp bulb
Switch off the lights.
Open the hood (
page 226).
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
2Headlamp cover for high beam head-
lamp3Headlamp cover for Bi-Xenon head-
lamp
4High beam bulb
5Bulb holder
6Parking and standing lamp
High beam bulb
Switch off the lights.
Open the hood (
page 226).
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 cover3 for the Bi-Xenon
headlamp. Because of high voltage in Bi-Xe-
non 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.
Page 284 of 356
284 Practical hintsReplacing 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
headlamp mounting and turn bulb hold-
er to the right until it engages.
Replace headlamp cover2 and turn to
the right until it engages.Front turn signal lamp bulb
Switch off the lights.
Open the hood (
page 226).
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 226).
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.
Replace headlamp cover2 and turn to
the right until it engages.
Page 285 of 356
285 Practical hints
Replacing bulbs
Side 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 sock-
et.
Reinstall trim panel.
