2013 MERCEDES-BENZ GLK-CLASS SUV fuel

DEF (BlueTEC vehicles only)
Important notes on use To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF. Adding
DEF
is one of the
tasks performed during maintenance. Under
normal operating conditions, a tank of DEF
lasts until the next service due date.
When the supply of DEF is almost used up,
the Check Additive See Operator's
Manual message is shown in the
multifunction display.
When the DEF supply drops to a minimum, the
Remaining Starts: 16 message is shown
in the multifunction display.
If the Remaining Starts: 16 message
appears in the multifunction display, you can
start the engine another 16 times. If DEF is
not refilled, you will subsequently be unable
to start the engine . Refill the DEF tank with
around 1 gal (3.8 l) of DEF or have the DEF
tank refilled at a qualified specialist
workshop.
Use the special DEF refill bottle when adding
DEF between maintenance intervals. Contact
a qualified specialist workshop with any
questions or, if necessary, contact Roadside
Assistance ( Y page 24).
If the outside temperature is below 12 ‡
(00FC11 †) it may be difficult to top up. If DEF is
frozen and there is an active warning
indicator, it may not be possible to add DEF.
Park the vehicle in a warmer place, e.g. in a
garage, until DEF has become fluid again. It
will then be possible to add DEF again.
Alternatively, have the DEF tank refilled at a
qualified specialist workshop.
Further information about BlueTEC exhaust
gas aftertreatment and DEF is available at any
authorized Mercedes-Benz Center. Important safety notes on the refilling
procedure DEF is a water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. It is:
R
not poisonous
R colorless and odorless
R not flammable
When you open the DEF container, small
amounts of ammonia vapor may
be released.
Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may
experience a burning sensation in your eyes,
nose and throat. Coughing and watering of
the eyes are possible.
Do not inhale ammonia vapors. Fill the DEF
tank only in well-ventilated areas.
DEF must not come into contact with your
skin, eyes or clothing and must not be
swallowed. Keep DEF away from children.
If you or other persons come into contact with
DEF, observe the following:
R Rinse DEF from your skin immediately with
soap and water.
R If DEF comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance
without delay.
R If DEF has been swallowed, rinse your
mouth out immediately. Drink plenty of
water. Seek medical assistance without
delay.
R Change out of clothing contaminated with
DEF immediately.
! Only use DEF in accordance with
ISO 22241. Do not mix any additives with
DEF, and do not dilute DEF with water. This
may destroy the BlueTEC exhaust gas
aftertreatment system.
! Rinse surfaces that have come into
contact with DEF immediately with water or
remove DEF using a damp cloth and cold
water. If the DEF has already crystallized,
use a sponge and cold water to clean it. DEF 158
Refueling
Driving and parking

residues crystallize after time and
contaminate the affected surfaces.
! DEF is not a fuel
additive and must not be
added to the fuel tank. If DEF is added to
the fuel tank, this can lead to engine
damage.
! Only screw on the DEF refill bottle hand-
tight. It could otherwise be damaged.
The DEF filler neck is under the cargo
compartment floor.
X Switch the ignition off.
X Open the tailgate.
X Lift up the cargo compartment floor
(Y page 312). X
Turn DEF cap 0043 counter-clockwise and
remove it. X
Turn DEF filler cap 0044 counter-clockwise
and open it.
Filler cap 0044
is secured

with a plastic strip. X
Unscrew the protective cap from DEF refill
bottle 0087.
X Set DEF refill bottle 0087 as shown on the
filler neck and screw it on hand-tight.
X Press DEF refill bottle 0087 downward.
The DEF tank is filled. This may take up to
one minute.
i To top up between service intervals, fill
the DEF tank with approximately 1 gal
(3.8 l) of DEF.
1

gal (3.8 l) DEF is equivalent
to approximately 2 DEF refill bottles. Then
have the DEF supply checked at a qualified
specialist workshop and completely refilled
if necessary.
X Release DEF refill bottle 0087.
When DEF refill bottle 0087 is no longer
pressed down, filling stops.
DEF

refill bottle
0087 can be removed when it has been only
partially emptied.
X Turn DEF refill bottle 0087 counter-clockwise
and remove it.
X Place DEF filler cap 0044 on
the filler
neck
and
turn it clockwise. Refueling
159
Driving and parking Z

X
Connecting a trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist
workshop.
If you leave the vehicle
parked for longer than
six weeks, the vehicle may suffer damage as
a result of lack of use.
X Visit a qualified specialist workshop and
seek advice. Driving tips
General driving tips
Important safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at

all. This could affect,
for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If you operate mobile communication
equipment while driving, you will be
distracted from traffic conditions. You could
also lose control
of the

vehicle. There is a risk
of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the
country in which you are driving. Some
jurisdictions prohibit the driver from using a
mobile phone while driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a distance of 44 feet (approximately 14 m)
per second.
Drive sensibly – save fuel
Observe the following tips to save fuel:
X
The tires should always be inflated to the
recommended tire pressure.
X Remove unnecessary loads.
X Remove roof racks when they are not
needed.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X Have all maintenance work carried out as
indicated by the service intervals in the
Maintenance Booklet or by the service
interval display.
Fuel consumption also increases when
driving in cold weather, in stop-start traffic
and in hilly terrain.
Drinking and driving G
WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and
judgment.
The possibility of a serious or even fatal
accident are greatly increased when

you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Emission control G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to

poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation. 162
Driving tips
Driving and parking

Certain engine systems are designed to keep
the level of poisonous
components
in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with
the manufacturer's specifications. For this
reason, all work on the engine must be carried
out by qualified and authorized Mercedes-
Benz technicians.
The engine settings must not be changed
under any circumstances. Furthermore, all
specific service work must be carried out at
regular intervals and in accordance with the
Mercedes-Benz service requirements. Details
can be found in the Maintenance Booklet. ECO display
The ECO display gives you

information on how
economical your driving style is. The ECO
display assists you in achieving the optimum
driving style in terms of consumption, taking
the actual and selected conditions into
consideration. Your driving style can
significantly influence the vehicle's
consumption. Example: ECO display
The ECO display consists of three bars:
R
Acceleration
R Constant
R Coasting
The percent value is the

average value of the
three bars. The three bars and the mean value
begin at the value of 50%. A higher
percentage indicates a more economical
driving style.
The ECO display does not indicate the actual
fuel consumption and a fixed percentage count in the ECO display does not indicate a
fixed consumption figure.
Apart from driving style, consumption is
dependent on many factors such as, e.g.:
R
load
R tire pressure
R cold start
R choice of route
R electrical consumers switched on
These factors are not taken into
consideration by the ECO display.
The evaluation of your driving

style is carried
out using the following three categories:
R Acceleration (evaluation of all
acceleration processes):
-The bar fills up: moderate acceleration,
especially at higher speeds
- The bar empties: sporty acceleration
R Constant (assessment of driving behavior
at all times):
-The bar fills up: constant speed and
avoidance of unnecessary acceleration
and deceleration
- The bar empties: fluctuations in speed
R Coasting (assessment of all deceleration
processes):
-The bar fills up: anticipatory driving,
keeping your distance and early release
of the accelerator. The vehicle can coast
without use of the brakes.
- The bar empties: frequent braking
i An economical driving style specially
requires driving at moderate engine
speeds.
To achieve a higher value in the categories
Acceleration and Constant:
R observe the gearshift recommendations.
R drive in drive program E.
i On long journeys at a constant speed, e.g.
on the highway, only the bar for Constant
will change. Driving tips
163
Driving and parking Z

The vehicle/trailer combination:
R
is heavier
R is restricted in its acceleration and
gradient-climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R has a larger turning radius
This could impair the handling
characteristics.
When towing a trailer, always adjust your
speed to the current road and weather
conditions. Do not exceed the maximum
permissible speed for your vehicle/trailer
combination.
General notes R
Do not exceed the legally prescribed
maximum speed for vehicle/trailer
combinations in the relevant country.
This lowers the risk of an accident.
R Only install an approved trailer
coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
R The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
R Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
R To reduce the risk of damage to the ball
coupling, remove it from the ball coupling
recess when not in use.
i When towing a trailer, set the tire
pressure on the rear axle of the towing
vehicle for a maximum load; see the tire
pressure table in the fuel filler flap
(Y page 349).
You will find installation dimensions and loads
in the "Technical data" section
(Y page 374). Missing values for the maximum noseweight
of the trailer drawbar on the ball coupling
were
unavailable at
the time

of going to print.
However, the actual noseweight must not
exceed the value given on the identification
plates of the trailer tow hitch and trailer. The
lowest weight applies.
Please note that when towing a trailer,
PARKTRONIC ( Y page 180) is only available
with limitations or not at all.
i On vehicles without level control, the
height of the ball coupling will alter
according to the load placed on the vehicle.
If necessary, use a trailer with a height-
adjustable drawbar.
Driving tips i
Observe the notes on ESP ®
trailer
stabilization ( Y page 69).
The maximum permissible speed for

vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check
the trailer's documents to see what the
maximum permissible speed is. Observe the
legally prescribed maximum speed in the
relevant country.
For certain Mercedes-Benz vehicles, the
maximum permissible rear axle load is
increased when towing a trailer. Refer to the
"Technical data" section to find out whether
this applies to your vehicle.
If you utilize any of the added maximum rear
axle load when towing a trailer, the vehicle/
trailer combination may not exceed a
maximum speed of 60 mph (100 km/h) for
reasons concerning the operating permit.
This also applies in countries in which the
permissible maximum speed for vehicle/
trailer combinations is above 60 mph
(100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without a trailer.
On long and steep downhill gradients, you
must select shift range 1, 2 or 3 in good time. Towing a trailer
209
Driving and parking Z

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 Read the information on qualified
specialist workshops: ( Y page 27).Important safety notes
G
WARNING
If you operate information systems and
communication equipment integrated in the
vehicle while driving, you will be distracted
from traffic conditions. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate the equipment when the traffic
situation permits. If you are

not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary. G
WARNING
If the instrument cluster has failed or
malfunctioned, you may not recognize
function restrictions in systems relevant to
safety. The operating safety of your vehicle
may be impaired. There is a risk of an
accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop
immediately.
You must observe the legal requirements for
the country in which you

are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the multifunction display. You should therefore
make sure your vehicle is operating safely at
all times. Otherwise, a vehicle that is not
operating safely may cause an accident.
For an overview, see the instrument panel
illustration (
Y page 31). Displays and operation
Coolant temperature display
G
WARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartment could expose you

to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
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 †).
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged. Tachometer
The red band in the

tachometer indicates the
engine's overrevving range.
! Do not drive in the overrevving range, as
this could damage the engine.
The fuel supply is interrupted to protect the
engine when the red band is reached. 216
Displays and operation
On-board computer and displays

Text field 0043 shows the selected menu or
submenu as well as display messages.
i
You can set the time using the audio
system or COMAND, see the separate
operating instructions.
The following messages may appear in the
multifunction display:
CRUISE Cruise control (
Y page 169)
00C5 Rear window wiper ( Y page 121)
00CE Adaptive Highbeam Assist
(Y page 114)
00AD ATTENTION ASSIST (Y page 197)
00A7 ECO start/stop function
(Y page 144)
00B0 Lane Keeping Assist (Y page 200) or
Active Lane Keeping Assist
( Y
page 205)
00D9 HOLD function ( Y page 179)
00C7 PRE-SAFE ®
Brake (Y page 69) Menus and submenus
Menu overview
Operating the on-board computer
(Y page 217).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R Trip menu (Y page 219)
R Navi menu (navigation instructions)
(Y page 221)
R Audio menu (Y page 222)
R Tel menu (telephone) ( Y page 223)
R DriveAssist menu (assistance)
(Y page 224)
R Serv menu (Y page 226)
R Sett. menu (settings) (Y page 226)
The Audio, Navi and
Tel menus differ

slightly
in vehicles with an audio system and in
vehicles with COMAND. The examples given
in this Operator's Manual apply to vehicles
equipped with COMAND. Trip menu
Standard display X
Press and hold the 0038 button on the
steering wheel until the Trip menu with
trip odometer 0043 and odometer 0044 is
shown.
Trip computer "From Start" or "From
Reset" Example: trip computer "From Start"
0043
Distance
0044 Time
0087 Average speed
0085 Average fuel consumption
X Press the 0059 or 0065 button on the
steering wheel to select the Trip menu.
X Press the 0063 or 0064 button to select
From Start or From Reset.
The values in the From Start submenu are
calculated from the start of a journey,
whereas the values in the From Reset
submenu are calculated from
the

last time the
submenu was reset ( Y page 220).
The From Start trip computer is
automatically reset if:
R the ignition has been switched off for more
than four hours.
R 999 hours have been exceeded.
R 9999 miles have been exceeded. Menus and submenus
219
On-board computer and displays Z

The From Reset trip computer is
automatically reset if the value exceeds
9,999 hours or 99,999 miles.
Displaying the range and current fuel
consumption
X
Press the 0059 or 0065 button on the
steering wheel to select the Trip menu.
X Press the 0063
or 0064
button to
select the
current fuel consumption and approximate
range.
The approximate range that can be covered
depends on the fuel level and your current
driving style. If there is only a small amount
of fuel left in the

fuel tank, the display shows
a vehicle being refueled 00A8 instead of the
range.
ECO display Example: ECO display
X
Press the 0059 or 0065 button on the
steering wheel to select the Trip menu.
X Press 0063 or 0064 to select ECO
DISPLAY.
If the ignition remains switched off for longer
than four hours, the ECO display will be
automatically reset.
Further information on the ECO display
(Y page 163). Digital speedometer
0043
Digital speedometer
X Press the 0059 or 0065 button on the
steering wheel to select the Trip menu.
X Press the 0063 or 0064 button to
select the
digital speedometer.
Resetting values Example: resetting the trip computer "From Start"
X
Press the 0059 or 0065 button on the
steering wheel to select the Trip menu.
X Press the 0063 or 0064 button to
select the
function that you wish to reset.
X Press the 0076 button.
X Press the 0064 button to select Yes and
press the 0076 button to confirm.
You can reset the values of the following
functions:
R Trip odometer
R "From Start" trip computer
R "From Reset" trip computer
R ECO display220
Menus and submenus
On-board computer and displays