374 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.3rd brake lampThe high mounted brake lamp is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.Visit an authorized Mercedes-Benz
Center as soon as possible.
Backup lamp, leftThe left backup lamp is malfunctioning.Replace the bulb as soon as possible.
Backup lamp, rightThe right backup lamp is malfunctioning.Replace the bulb as soon as possible.
Brake lamp
Drive to workshopBrake lamp illumination is delayed or
lamp is permanently on.Visit an authorized Mercedes-Benz
Center as soon as possible.
Brake lamp leftThe left brake lamp is malfunctioning.Replace the bulb as soon as possible.
Brake lamp rightThe right brake lamp is malfunctioning.Replace the bulb as soon as possible.
Display malfunction
Visit workshop.The display for the lamps or the system is
malfunctioning.Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp leftThe left front fog lamp is malfunctioning.Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp rightThe right front fog lamp is malfunctioning.Visit an authorized Mercedes-Benz
Center as soon as possible.
Front left
side marker lampThe left front side marker lamp is
malfunctioning.Visit an authorized Mercedes-Benz
Center as soon as possible.
Front right
sider marker lampThe right front side marker lamp is
malfunctioning.Visit an authorized Mercedes-Benz
Center as soon as possible.
376 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Low beam rightThe right low beam lamp is
malfunctioning.Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
Parking lamp
left frontThe left front parking lamp is
malfunctioning.Replace the bulb as soon as possible.
Parking lamp
right frontThe right front parking lamp is
malfunctioning.Replace the bulb as soon as possible.
Rear fog lamp
Substit. bulb onThe rear fog lamp is malfunctioning.
A substitute bulb is being used.Replace the bulb as soon as possible.
Switch off lightsHeadlamps have been turned on with the
driver’s door opened and the SmartKey
removed from the starter switch.Switch off the headlamps.
Taillamp left
Substit. bulb on
The left tail lamp is malfunctioning.
A substitute bulb is being used.Replace the bulb as soon as possible.
Taillamp right
Substit. bulb on
The right tail lamp is malfunctioning.
A substitute bulb is being used.Replace the bulb as soon as possible.
394 Practical hints
Replacing bulbs
Safe 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.i
If 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.
i
Substitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction
display (
page 374).
396 Practical hints
Replacing bulbs
Rear lamps 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.
LampType
7High mounted brake
lampLED
8Brake lampP21W
9Turn signal lampPY 21 W
aParking and side
marker lampP 21/5 W
bBackup lampP21W
cLicense plate lampsC5W
dRear fog lamp (driver’s
side only), tail and
standing lampP 21/4 W
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.
457 Index
L
Labels 426
Certification 426
Emission control information 426
Emission control vacuum line
routing 426
Lamp sensor
Message in display 375
Lamps, exterior 395, 396
Light sensor 375
Messages in display 374, 375, 376,
377
Lamps, indicator and warning
ABS 25, 350
Battery (SmartKey) 96
Brakes 25, 351
Engine diagnostics 352, 356
Engine malfunction 25, 352–353
ESP
®25, 354
Fog lamps 114
Front passenger front air bag off 27,
66
Fuel reserve 25, 354
High beam headlamps 25
Instrument cluster 350, 356
Low beam headlamps 25Maintenance service indicator 338
Rear fog lamp 114
Seat belt telltale 25
SRS 25, 61, 356
Turn signals 25
Language, Setting 138
LATCH-type child seat anchors see
Children in the vehicle
Leather upholstery, Cleaning and
care of 347
License plate lamps
Messages in display 375
Replacing bulbs 396
Light alloy wheels
Cleaning 346
Technical data 431, 432
Light sensor see Lamp sensor
Lighter see Cigarette lighter
Lighting
Parking lamps 114
Lighting, Exterior and interior 114
Limp-Home Mode 168
Loading see Vehicle loading
Loading terminology 331
Loading the vehicle 308
Locator lighting 117, 145Locking knob 445
Loss of keys 98
Loss of Service and Warranty Information
Booklet 425
Low beam headlamps
Indicator lamp 25
Messages in display 375, 376
Replacing bulbs 395, 398
Switching on 48
Lubricants 436
Technical data 436
Lumbar support* 109
M
Main dimensions 435
Main fuse box
In passenger compartment 421
Main odometer 125
