engine MERCEDES-BENZ GLK SUV 2012 Workshop Manual

Transmission position and drive pro-
gram display :
Transmission position display
; Drive program display
i The arrows in the transmission position
display show how and into which transmis-
sion positions you can change using the
DIRECT SELECT lever.
! If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether
the desired transmission position is
engaged. Ideally, you should select trans-
mission position Dand drive program Eor
S. Do not restrict the shift range.
The current transmission position and drive
program appear in the multifunction display.
Engaging park position P X
Push the DIRECT SELECT lever in the direc-
tion of arrow P.
i The automatic transmission shifts into
park position Pautomatically:
R if you open the driver's door while the
vehicle is stationary in transmission posi-
tion Dor R
R if you open the door while travelling at
very low speeds in transmission position
D or R
i Depressing the brake and pushing the
DIRECT SELECT lever up or down disen- gages the parking lock. The transmission is
in
Nneutral.
In order to shift from park position P
directly into Ror D:
R depress the brake pedal and
R push the DIRECT SELECT lever up or
down past the first point of resistance
! If the engine speed is too high, do not shift
the automatic transmission directly from
D to R, from Rto Dor directly to P. Other-
wise, the automatic transmission could be
damaged.
Engaging park position P automatically Park position
Pis automatically engaged if:
R you switch off the engine using the key and
remove the key
R you switch off the engine using the Start/
Stop button and open one of the front doors
R the HOLD (Y page 186) or DISTRONIC
PLUS (Y page 178) function brake your
vehicle until it is stationary and at least one
of the following conditions is fulfilled:
- there is a system malfunction.
- the vehicle is on a steep uphill or downhill
gradient. The electric parking brake is
then also engaged.
Engaging reverse gear R !
Only shift the automatic transmission to
R when the vehicle is stationary.
X Push the DIRECT SELECT lever up past the
first point of resistance.
Neutral N with ECO start/stop function
activated The ECO start/stop function switches the
engine off automatically if:
R
the vehicle is braked until stationary while
in neutral Nand
R you continue to apply the brakes. 156
Automatic transmissionDriving an
d parking

For further information on the ECO start/stop
function ( Ypage 150).
Shifting to neutral (N) X
Push the DIRECT SELECT lever up or down
to the first point of resistance.
Drive position D with ECO start/stop
function activated The ECO start/stop function switches the
engine off automatically if:
R the vehicle is braked until stationary while
in transmission position Dand
R you continue to apply the brakes.
For further information on the ECO start/stop
function ( Ypage 150).
Engaging drive position D X
Push the DIRECT SELECT lever down past
the first point of resistance. Transmission positions
B
Park position
This prevents the vehicle from roll-
ing away when stopped. Do not
shift the transmission into position
P(Y
page 164) unless the vehicle
is stationary.
The automatic transmission shifts
to Pautomatically if you:
R remove the key
R switch off the engine when in R
or Dand open one of the front
doors. C
Reverse gear
Only shift the transmission to
R
when the vehicle is stationary. A
Neutral
Do not shift the transmission to
N
while driving. Otherwise, the auto-
matic transmission could be dam-
aged.
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
If ESP ®
is deactivated or faulty:
only shift the transmission to posi-
tion Nif the vehicle is in danger of
skidding, e.g. on icy roads.
! Rolling in neutral Ncan lead to
damage to the transmission. 7
Drive
The automatic transmission
changes gear automatically. All
forward gears are available. Changing gear
The automatic transmission shifts to the indi-
vidual gears automatically when it is in trans-
mission position D. Gearshifting is deter-
mined by:
R a shift range restriction, if selected
R the selected drive program
E/S, E/S/M orM(Y page 158)
R the position of the accelerator pedal
R the road speed Driving tips
Accelerator pedal position Your style of driving influences how the auto-
matic transmission shifts gear:
R
little throttle: early upshifts
R more throttle: late upshifts Automatic transmission
157Driving and parking Z

Kickdown
Use kickdown for maximum acceleration.
X Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up.
Towing a trailer X
Drive in the middle of the engine speed
range on uphill gradients.
X Shift down to shift range 3or
2(Y page 159)depending on the uphill or
downhill gradient, even if cruise control or
SPEEDTRONIC is activated. Program selector button
General notes The program selector button allows you to
choose between different driving character-
istics. Program selector button Program selector button on vehicles without the
"dynamic handling package with sports mode"
Program selector button on vehicles with the
"dynamic handling package with sports mode"
E
Economy Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gearshifting
i
For further information on the automatic
drive program, see (Y page 159).
X Press program selector button :repeat-
edly until the letter for the desired gearshift
program appears in the multifunction dis-
play.
i The automatic transmission switches to
automatic drive program Eeach time the
engine is started. 158
Automatic trans
missionDriving and parking

Steering wheel gearshift paddles
:
Left-hand steering wheel gearshift paddle
; Right-hand steering wheel gearshift pad-
dle
In the automatic drive program, you can
restrict or expand the shift range by using the
steering wheel gearshift paddles
(Y page 159).
In the manual drive program, you can change
gear yourself by using the steering wheel
gearshift paddles (Y page 160).
i You can only change gear with the steer-
ing wheel gearshift paddles when the trans-
mission is in position D.Automatic drive program
Drive program Eis characterised by the fol-
lowing:
R comfort-oriented engine and automatic
transmission settings
R optimal fuel consumption resulting from
the automatic transmission shifting up
sooner
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example
R the automatic transmission shifting up
sooner. This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin Shift ranges
Introduction When the automatic transmission is in posi-
tion
D, it is possible to restrict or expand the
shift range (Y page 159).
The shift range selected is shown in the mul-
tifunction display. The automatic transmis-
sion shifts only as far as the selected gear. Shift range
=
To use the engine's braking effect
5
To use the braking effect of the
engine on downhill gradients and
for driving:
R
on steep mountain roads
R in mountainous terrain
R in arduous conditions 4
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches
Restricting the shift range
X
Pull the left-hand steering wheel gearshift
paddle.
The automatic transmission shifts down
one gear and restricts the shift range to the
relevant gear.
i If the engine exceeds the maximum
engine speed when shifting down, the auto-
matic transmission protects against engine
damage by not shifting down.
i If the maximum engine speed for the shift
range is reached and you continue to accel-
erate, the automatic transmission shifts up
in order to prevent the engine from over-
revving, even if the shift range is restricted. Automatic transmission
159Driving and parking Z

Extending the shift range
X
Pull the right-hand steering wheel gearshift
paddle.
The shift range is derestricted.
Clearing the shift range restriction X
Pull and hold the right-hand steering wheel
gearshift paddle until Dis shown again in
the multifunction display.
The automatic transmission shifts from the
current shift range directly to D.
Selecting the ideal shift range X
Pull the left-hand steering wheel gearshift
paddle and hold it in position.
The automatic transmission shifts to the
gear which allows optimum acceleration
and deceleration. To do this, the automatic
transmission shifts down one or more
gears. Manual drive program
Activating the manual drive program Manual drive program
Mcan be selected
using the program selector button. In manual
drive program M, you can change gear using
the steering wheel gearshift paddles if the
transmission is in position D. The gear selec-
ted is shown in the multifunction display.
X Press the program selector button
(Y page 158) repeatedly until Mappears in
the multifunction display.
Upshifting X
Pull the right-hand steering wheel gearshift
paddle (Y page 159).
The automatic transmission shifts up to the
next gear. Downshifting X
Pull the left-hand steering wheel gearshift
paddle (Y page 159).
The automatic transmission shifts down to
the next gear.
i For maximum acceleration, pull the left-
hand steering wheel gearshift paddle until
the transmission selects the optimum gear
for the current speed.
Kickdown You can also use kickdown for maximum
acceleration in manual drive program
M.
X Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
Deactivating the manual drive program X
Vehicles without the dynamic handling
package with sports mode: press the
program selector button (Y page 158)
repeatedly until Eor Sappears in the mul-
tifunction display.
X Vehicles with the dynamic handling
package with sports mode: press the
program selector button (Y page 158).M
is no longer shown in the multifunction dis-
play. 160
Automatic transmissionDriving and parking

Problems with the transmission
Problem Possible causes/consequences and
M
MSolutions The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least 10 seconds before restarting the engine.
X Shift the transmission to position Dor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
X Have the transmission checked at a qualified specialist work-
shop immediately. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heating
before refuelling. G
WARNING
Avoid contact with fuels.
It is hazardous to your health if your skin
comes into direct contact with fuels or you
breathe in fuel vapours. G
WARNING
Do not use petrol to refuel a diesel tank. Never
mix diesel with petrol. Doing so could damage
the fuel system and the engine. The vehicle
could also catch fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel vehicles with a petrol engine. Even small
amounts of the wrong fuel result in damage
to the fuel system and the engine.
! Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 365). Refuelling
161Driving and parking Z

Refuelling
Opening/closing the fuel filler flap :
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type to be refuelled
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
8 in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the key from the ignition lock.
X KEYLESS-GO: open the driver's door.
This corresponds to key position 0: "key
removed".
The driver's door can be closed again.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap fully.
X Turn the fuel filler flap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap ;.X
Completely insert the filler neck of the fuel
pump nozzle into the tank and refuel.
X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing X
Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
i Close the fuel filler flap before locking the
vehicle. Otherwise, the locking pin of the
central locking prevents the fuel filler flap
from closing. 162
RefuellingDriving and parking

Problems with the fuel and fuel tank
Problem Possible causes/consequences and
M
MSolutions Fuel is leaking from the
vehicle. The fuel line or the fuel tank is faulty.
G WARNING
There is danger of fire or explosions.
X Turn the key to position 0in the ignition lock and remove it
immediately (Y page 147).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The engine does not
start. The fuel tank of a vehicle with a diesel engine has been run com-
pletely dry.
X
Refuel the vehicle with at least 5 litres of diesel.
X Turn the ignition on for around 10 seconds(Y page 147).
X Start the engine continuously for up to 10 seconds until it runs
smoothly.
If the engine does not start:
X Turn the ignition on again for approximately
10 seconds(Y page 147).
X Start the engine again continuously for up to 10 seconds until
it runs smoothly.
If the engine does not start after three attempts:
X Consult a qualified specialist workshop. The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
or
The key battery is discharged.
X
Unlock the vehicle (Y page 76).
or
X Unlock the vehicle using the emergency key element
(Y page 78). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X
Consult a qualified specialist workshop. Refuelling
163Driving and parking Z

Parking
Important safety notes
G
WARNING
If flammable materials such as leaves, grass
or twigs are exposed to prolonged contact to
parts of the exhaust system that heat up, they
could ignite. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields. 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 leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's equip-
ment. There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unsupervised in the vehicle.
! A moving vehicle can lead to damage to
the vehicle or damage to the drive train.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the parking brake must be applied.
R on vehicles with manual transmission,
engage first gear or reverse gear. R
on vehicles with automatic transmission,
the transmission must be in position Pand
the key must be removed from the ignition
lock.
R on uphill or downhill gradients, the front
wheels must be turned towards the kerb. Switching off the engine
Important safety notes G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of
an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Vehicles with manual transmission X
Shift to either first gear or reverse gear R.
X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
X Firmly depress the parking brake.
Vehicles with automatic transmission X
Firmly depress the parking brake.
X Shift the transmission to position P.
Using the key
X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
i The key can only be removed if the trans-
mission is in position P.164
ParkingDriving and parking

Using KEYLESS-GO
X
Press the Start/Stop button (Y page 147).
The engine stops and all the indicator
lamps in the instrument cluster go out.
i When the driver's door is closed, this cor-
responds to key position 1. When the driv-
er's door is open, this corresponds to key
position 0, i.e. key removed.
i The engine can be switched off while the
vehicle is in motion by pressing and holding
the Start/Stop button for approximately
3 seconds. This function operates inde-
pendently of the ECO start/stop automatic
engine switch-off function. Parking brake
G
WARNING
If you must brake the vehicle with the parking
brake, the braking distance is considerably
longer and the wheels could lock. This increa-
ses the risk of skidding and an accident.
Only use the parking brake to brake the vehi-
cle when the service brake is faulty. Do not
apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again. G
WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's equip-
ment. There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unsupervised in the vehicle. X
To apply: depress parking brake ;firmly.
The J indicator lamp in the instrument
cluster lights up if the engine is running.
X To release: depress the brake pedal and
keep it depressed.
X Pull release handle :.
The J indicator lamp in the instrument
cluster goes out. Parking up the vehicle
If you leave the vehicle parked up for longer
than four weeks, the battery may be damaged
by exhaustive discharging.
X Disconnect the battery or connect it to a
trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop.
If you leave the vehicle parked up for longer
than six weeks, the vehicle may suffer dam-
age 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 Driving tips
165Driving and parking
Z