2012 MERCEDES-BENZ GLK-Class open hood

FusesAllocation chart ............................. 267
Before changing ............................. 267
Dashboard fuse box .......................267
Fuse box in the cargo
compartment ................................. 268
Fuse box in the engine
compartment ................................. 267
Important safety notes ..................266
G
Garage door opener Clearing the memory .....................234
Frequencies ................................... 235
Notes ............................................. 231
Opening/closing the garage door ..233
Programming the remote control ...232
Gasoline ............................................. 141
Gear or selector lever (cleaning
guidelines) ......................................... 248
Genuine Mercedes-Benz parts ......... 300
Glove box ........................................... 213
GTW (Gross Trailer Weight)
(definition) ......................................... 292
H
Handbrake see Parking brake
Hazard warning lamps ...................... 105
Headlamp cleaning system Notes ............................................. 307
Headlamps
Adding fluid to cleaning system .....241
Cleaning system (function) ............105
Fogging up ..................................... 106
Removing/installing the cover .......110
see Automatic headlamp mode
Head restraints
Adjusting ......................................... 93
Adjusting (electrically) .....................93
Adjusting (manually) ........................93
Adjusting (rear) ................................ 93
Installing/removing (rear) ................94
see NECK-PRO head restraints
Heating
see Climate control
High-beam headlamps
Changing bulbs .............................. 111
Display message ............................ 189
Switching on/off ........................... 105
Hill start assist .................................. 133
Hood Closing ........................................... 239
Display message ............................ 197
Opening ......................................... 238
Hydroplaning ..................................... 148
I
Ignition lock see Key positions
Immobilizer .......................................... 65
Indicator lamps see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 29
Settings ......................................... 175
Warning and indicator lamps ...........30
Instrument cluster lighting ................ 29
Instrument lighting see Instrument cluster lighting
Interior lighting
Automatic control ..........................107
Delayed switch-off (on-board
computer) ...................................... 177
Emergency lighting ........................108
Manual control ............................... 108
Overview ........................................ 107
Reading lamp ................................. 107
see Interior lighting
J
Jack Storage location ............................ 252
Using ............................................. 255
Jump starting (engine) ...................... 262
10Index

CockpitFunctionPage:Cruise control lever151;Instrument cluster29=Horn?PARKTRONIC warning
display
154
AOverhead control panel34BOperates the climate
control system
118
CIgnition lock131Start/Stop button131DAdjusts the steering wheel
manually
96
FunctionPageEAdjusts the steering wheel
electrically
96
FCombination switch105GParking brake144HOn-board diagnostics
socketIOpens the hood238JReleases the parking brake144KLight switch10228CockpitAt a glance

GWARNING
If EBD has malfunctioned, the braking system
remains available with full brake boosting
effect. However, the rear wheels can still lock,
e.g. under full braking. This could cause you
to lose control of your vehicle and cause an
accident. You should therefore adapt your
driving style to the different handling
characteristics.
XObserve the notes on warning and indicator
lamps ( Y page 202) as well as display
messages ( Y page 182).
Theft deterrent locking systems
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
XTo activate with the SmartKey: remove
the SmartKey from the ignition lock.XTo activate with KEYLESS-GO: switch the
ignition off and open the driver's door.XTo deactivate: switch on the ignition.
i
The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in
USA) or 1-800-387-0100 (in Canada).
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R
the tailgate
R the hood
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
i If the alarm stays on for more than 30
seconds, the emergency call system
mbrace (USA only) or TELE AID (Canada
only) initiates a call to the Customer
Assistance Center automatically. The
emergency call system initiates the call
provided that:
R you have subscribed to the mbrace/
TELE AID service.
R the mbrace/TELE AID service has been
activated properly.
R the required mobile phone, power supply
and GPS are available.XTo arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp : flashes. The alarm
system is armed after approximately 15
seconds.XTo deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO.XTo stop the alarm using the SmartKey:
insert the SmartKey into the ignition lock.
The alarm is switched off.
or
XPress the % or & button on the
SmartKey.
The alarm is switched off.Theft deterrent locking systems65SafetyZ

License plate lamp
:License plate lamp: W 5 W
Changing the front bulbs
Removing/installing the headlamp
cover
You must remove the headlamp cover in the
engine compartment before you can replace
the bulbs in the headlamp.
XTo remove: press retaining clip : in the
direction of the arrow.XPull cover ; forward underneath
cover = and remove.XTo install: slide cover ; under cover =.
Connect the two covers by inserting the
tongue into the groove.XPress cover ; until retaining clip :
engages.Removing/attaching the washer fluid
reservoir
You must remove the washer fluid reservoir
from the engine compartment before you can
replace the bulbs in the left-hand headlamp.
XTo detach: turn catch ; counter-
clockwise.XSwing washer fluid reservoir : far enough
to the side to allow the bulbs of the
headlamp to be replaced.XTo attach: swing back washer fluid
reservoir :.XTurn catch ; clockwise.
Low-beam headlamps (halogen
headlamps)
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).110Replacing bulbsLights and windshield wipers

XTurn housing cover : counter-clockwise
and pull it out.XPull connector ; from bulb ?.XUnclip retaining spring = and fold it down.XPull out bulb ?.XInsert the new bulb.XClip retaining spring = back in.XAttach connector ; to bulb ?.XAttach housing cover : and turn it
clockwise until it engages.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
High-beam headlamps (halogen
headlamps)
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).XTurn housing cover : counter-clockwise
and pull it out.XPress the handle of bulb holder ; in the
direction of the arrow until bulb holder ;
is released.XTake out the handle with bulb holder ;.XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.
Lug = of the bulb must be pointing
upward.XInsert bulb holder ;.XPush the handle of bulb holder ; in the
opposite direction from the arrow until
holder ; engages.XAlign housing cover : and turn it
clockwise until it engages.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
Parking lamp/standing lamp
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).XTurn housing cover : counter-clockwise
and pull it out.XPull out bulb holder ;.Replacing bulbs111Lights and windshield wipersZ

XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.XInsert bulb holder ;.XAlign housing cover : and turn it
clockwise until it engages.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
Turn signal lamps/side marker lamps
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).XTurn bulb holder : or ; counter-
clockwise and pull it out.XWY 5 W (turn signal lamp and side marker
lamp): remove the bulb from bulb
holder :.XPY 21 W (turn signal lamp): turn the bulb
counter-clockwise, applying slight
pressure, and remove it from bulb
holder ;.XWY 5 W (turn signal lamp and side marker
lamp): insert the new bulb into bulb
holder :.XPY 21 W (turn signal lamp): insert the new
bulb into bulb holder ; and turn it
clockwise while applying slight pressure.XInsert bulb holder : or ; and turn it
clockwise.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
Changing the rear bulbs
Opening and closing the side trim
panels
You must open the side trim panel in the
cargo compartment before you can change
the bulbs in the tail lamps.
Left-hand side trim panel
Right-hand side trim panel
XTo open: turn release knob : 90° in the
direction of the arrow and remove side trim
panel ;.XTo close: insert side trim panel ; and turn
release knob : 90° in the opposite
direction to the arrow.112Replacing bulbsLights and windshield wipers

! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
! Never open the hood if a windshield wiper
arm has been folded away from the
windshield.
Never fold a windshield wiper arm without
a wiper blade back onto the windshield/
rear window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield may be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by a qualified
specialist workshop, e.g. at an authorized
Mercedes-Benz Center.
Replacing the windshield wiper blades
Removing the wiper blades
! Before changing the wiper blades, always
set the wiper arms to a vertical position
using the combination switch. There is
otherwise a risk of damaging the hood.
Moving the wiper blades to a vertical
position
Vehicles without KEYLESS-GO
XTurn the SmartKey to position 1 or 2 in the
ignition lock.XSet the windshield wipers to
position °.XWhen the wiper arms have reached a
vertical position, turn the SmartKey to
position 0 and remove it from the ignition
lock.
Vehicles with KEYLESS-GO
XSwitch off the engine.XRemove your foot from the brake pedal.XSet the windshield wipers to
position °.XPress the Start/Stop button repeatedly
until the windshield wipers start.XWhen the wiper arms have reached a
vertical position, press the Start/Stop
button.
Removing the wiper blades
XFold the wiper arm away from the
windshield until it engages.XSet the wiper blade at right angles to the
wiper arm.XRemove the wiper blade from the retaining
pin on the wiper arm in the direction of the
arrow.
Installing the wiper blades
XPush the new wiper blade onto the
retaining pin on the wiper arm in the
opposite direction to the arrow.
Make sure that the wiper blade slides fully
onto the retaining pin on the wiper arm.XTurn the wiper blade parallel to the wiper
arm.XFold the wiper arm back onto the
windshield.Windshield wipers115Lights and windshield wipersZ

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 23).
Important safety notes
You will find an illustration of the instrument
cluster in the "At a glance" section
( Y page 29).
GWARNING
A driver's attention to the road and traffic
conditions must always be his/her primary
focus when driving.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions permit
it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h ), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
GWARNING
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicator lamps
Rmalfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If you must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible.GWARNING
Malfunction and warning messages are only
indicated for certain systems and are
intentionally not very detailed. The
malfunction and warning messages are
simply a reminder with respect to the
operation of certain systems. They do not
replace the owner's and/or driver's
responsibility to maintain the vehicle's
operating safety. Have all required
maintenance and safety checks performed on
the vehicle. Bring the vehicle to an authorized
Mercedes-Benz Center to address the
malfunction and warning messages.
Displays and operation
Coolant temperature display
GWARNING
Driving when your engine is overheated can
cause some fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
The coolant temperature gauge is in the
instrument cluster on the left-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †).
166Displays and operationOn-board computer and displays