2017 MERCEDES-BENZ GLC SUV ECU

To avoid transporting already opened refill con-
tainers in the vehicle, completely empty refill
bottles or canisters when filling the DEF tank, ifpossible.
For further information on DEF, see
(
Ypage 367).
Opening/closing the DEF filler cap
XTo open: switch the ignition off.
XPress the fuel filler flap in the direction of
arrow:.
The fuel filler flap swings up.
XTurn blue DEF filler cap ;counter-clockwise
and remove it.
DEF filler cap ;is secured with a plastic
strip.
XTo close: place DEF filler cap ;on the filler
neck and turn it clockwise.
XTo close the fuel filler flap, press it in the
direction of arrow :.
XDrive faster than 10 mph (16 km/h).
TheRefillAdBlueSeeOperator’sMan‐ualmessage goes out after approximately
one minute.
If the Refill AdBlue See Operator’s Man‐
ualmessage continues to be shown in the mul-
tifunction display, you must add more DEF.
iThe fuel filler flap is unlocked or locked
automatically when you unlock or lock the
vehicle.
DEF refill canisters
!Do not screw the disposable hose on too
tight. The disposable hose could otherwise be damaged and DEF may leak out.
XUnscrew the cap from the opening on top of
DEF refill canister ;.
XPlace disposable hose :on the opening of
DEF refill canister ;and screw it on clock-
wise until hand-tight.
Disposable hose :remains closed until you
fasten disposable hose :to the DEF filler
neck of the vehicle.
XPlace disposable hose :on the filler neck on
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose :is sufficiently secured.
XLift up and tip DEF refill canister ;.
Filling stops when the DEF tank is completely
filled. Do not fill the DEF tank any further. DEF
refill canister ;can be removed when it has
been only partially emptied.
XTurn disposable hose :on the filler neck of
the vehicle counter-clockwise and remove it.
XTurn disposable hose :on the opening of
DEF refill canister ;counter-clockwise and
remove it.
XReseal DEF refill canister ;with the cap.
DEF refill canisters are available at many gas
stations or at a qualified specialist workshop.
DEF refill canisters are often sold with a filler
hose. A filler hose that does not exactly fit the
vehicle's DEF tank offers no protection against
Refueling153
Driving and parking
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overfilling. DEF may leak if overfilled. Mercedes-
Benz offers a special disposable hose with over-
fill protection. You can obtain this from any
authorized Mercedes-Benz Center. DEF is avail-
able in a variety of containers and receptacles.
Only use the disposable hose with the
Mercedes-Benz DEF refill canisters.
DEF refill bottle
!Only screw on the DEF refill bottle hand-
tight. Otherwise, the thread of the DEF refill
bottle could be damaged and DEF could leak
out.
XUnscrew the protective cap from DEF refill
bottle :.
XPlace DEF refill bottle :on the filler neck as
shown and screw it on clockwise until hand-
tight.
XPress DEF refill bottle :towards the filler
neck.
The DEF tank is filled. This may take up to one
minute.
When DEF refill bottle :is no longer pressed,
filling stops and the bottle may be taken off
again after being only partially emptied.
XRelease DEF refill bottle :.
XTurn DEF refill bottle:counter-clockwise
and remove it.
XScrew the protective cap onto DEF refill bot-
tle : again.
DEF refill bottles are available at many gas sta-
tions or at a qualified specialist workshop. Refill
bottles without a threaded cap do not provide
overfill protection. DEF may leak if overfilled.
Mercedes Benz offers special refill bottles with a
threaded seal. These are available at any author-
ized Mercedes-Benz Center.
Parking
Important safety notes
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. 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.
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
Rthe electric parking brake must be applied.
Rthe transmission must be in position jand
the SmartKey must be removed from the igni-
tion lock.
Rthe front wheels must be turned towards the
curb on steep uphill or downhill gradients.
Rthe empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
Ron uphill or downhill gradients the laden vehi- cle must also be secured at the rear axle, for
example with a wheel chock or similar object.
154Parking
Driving and parking

Switching off the engine
Important safety notes
GWARNING
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 automatic transmission
XApply the electric parking brake.
XShift the transmission to position j.
XWith the SmartKey:turn the SmartKey to
position uin the ignition lock and remove it.
The immobilizer is activated.
XWith the Start/Stop button: press the
Start/Stop button (Ypage 133).
The engine stops and all the indicator lamps in
the instrument cluster go out.
When the driver's door is closed, this corre-
sponds to key position 1. When the driver's
door is open, this corresponds to key position
u, "Key removed".
If you switch the engine off with the transmis-
sion in position korh the automatic trans-
mission shifts to iautomatically.
With the SmartKey: if you then open the driv-
er's door or the front-passenger door or remove the SmartKey from the ignition, the automatic
transmission shifts to jautomatically.
With the Start/Stop button: if you then open
the driver's door or the front-passenger door,
the automatic transmission shifts to jauto-
matically.
If you want the automatic transmission to
remain in neutral i, for example, when having
the vehicle cleaned in an automatic car wash
with a towing system:
XVehicles with KEYLESS-GO or KEYLESS-
GO start function: remove the Start/Stop
button from the ignition lock.
XInsert the SmartKey into the ignition lock.
XAll vehicles: switch the ignition on.
XDepress the brake pedal and keep it
depressed.
XEngage neutral i.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
The engine can be switched off in an emergency
while the vehicle is in motion by pressing and
holding the Start/Stop button for three sec-
onds. This function operates independently of
the ECO start/stop automatic engine switch-off
function.
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction in
the system, it may not be possible to apply the
released parking brake.
XIf this is the case, only park the vehicle on
level ground and secure it to prevent it rolling
away.
XShift the transmission to position j.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a
qualified specialist workshop.
The electric parking brake performs a function
test at regular intervals while the engine is
Parking155
Driving and parking
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between your vehicle and the vehicle in front
becomes too small.
When you change lanes, DISTRONIC PLUS mon-
itors the left lane (on left-hand-drive vehicles) or
the right lane (on right-hand-drive vehicles).
Stopping
GWARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:
Rthere is a malfunction in the system or in
the voltage supply.
RDISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a vehi-
cle occupant or from outside the vehicle.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed, e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
For further information on deactivating
DISTRONIC PLUS (
Ypage 169).
If DISTRONIC PLUS detects that the vehicle in
front has stopped, it will cause your vehicle to
brake and come to a halt.
Once your vehicle is stationary, it remains sta-
tionary and you do not need to depress the
brake.
After a time, the electric parking brake secures
the vehicle and relieves the service brake.
Depending on the specified minimum distance,
your vehicle will come to a standstill at a suffi-
cient distance behind the vehicle in front. The
specified minimum distance is set using the
control on the cruise control lever. When DISTRONIC PLUS is activated, the trans-
mission is shifted automatically to position
j,
if:
Rthe driver's seat belt is not fastened and the
driver's door is open.
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and:
Ra system malfunction occurs.
Rthe power supply is insufficient.
If a malfunction occurs, the transmission may
also be shifted to position jautomatically.
Setting a speed
XPush the cruise control lever up :for a
higher speed or down ;for a lower speed.
XTo adjust the set speed in 1 mph incre-
ments (1 km/h increments): briefly push
the cruise control lever up :or down ;to
the pressure point.
Every time the cruise control lever is pressed
up : or down ;the last speed stored is
increased or reduced.
XTo adjust the set speed in 5 mph incre-
ments (10 km/h increments): briefly push
the cruise control lever up :or down ;
beyond the pressure point.
Every time the cruise control lever is pressed
up : or down ;, the last speed stored is
increased or reduced.
iIf you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed back to the
last speed stored after you have finished over-
taking.
Setting a specified minimum distance
You can set the specified minimum distance for
DISTRONIC PLUS by varying the time span
between one and two seconds. With this func-
tion, you can set the minimum distance that
DISTRONIC PLUS maintains to the vehicle in
front, depending on the driving speed. You can
see this distance in the multifunction display
(
Ypage 168).
Make sure that you maintain the minimum dis-
tance to the vehicle in front as required by law.
Driving systems167
Driving and parking
Z

Deactivating DISTRONICPLUS
There are severa lways to deactivat e
DISTRONIC PLUS:
XBriefly push th ecruise contro llever
forwar d:.
or
XBrake, unless th evehicle is stationary
Whe nyou deactivat eDISTRONIC PLUS, th e
DISTRONIC PLU SOff
messag ewill appear in
th emultifunction display fo rapproximately fiv e
seconds.
The last speed stored remain sstored until you
switch of fth eengine.
DISTRONIC PLU Sis no tdeactivated if you
depress th eaccelerator pedal.
DISTRONIC PLU Sis automatically deactivated
if:
Ryou engage th eelectric parking brake or if th e
vehicle is automatically secure dwit hth eelec -
tric parking brake
RES P®intervenes or you deactivat eES P®
Ryou shift th etransmissio nto position j,k
or i
Ryou pull th ecruise contro llever toward syou
in order to pull away and th efront-passenger
doo ror on eof th erea rdoors is ope n
Rthevehicle slip s
RYou activat eActive Parking Assis t
If ,under these circumstances, DISTRONIC
PLU Sis deactivated, awarnin gtone sounds. The
DISTRONIC PLU SOff
messag ethen appears
on th emultifunction display fo rapproximately
fiv eseconds.
Tips for drivin gwit hDISTRONI CPLUS
General notes
Pay particular attention in th efollowin gtraffic
situations:
RCornering, enterin gand exitin g abend: th e
ability of DISTRONIC PLU Sto detec tvehicles
when cornering is limited. Your vehicle may
brake unexpectedly or late.
RDriving on adifferen tline: DISTRONIC PLU S
may no tdetec tvehicles whic hare no tdrivin g
in th emiddle of their lane. The distanc eto th e
vehicle in fron twill be to oshort .
ROther vehicles changin glane: DISTRONIC
PLU Shas no tdetecte dth evehicle cutting in
yet .The distanc eto this vehicle will be to o
short .
RNarro wvehicles :DISTRONIC PLU Sdoe sno t
detec tth evehicle in fron ton th eedg eof th e
road because of it snarro wwidth. The dis -
tanc eto th evehicle in fron twill be to oshort .
RObstacles and stationary vehicles :
DISTRONIC PLU Sdoe sno tbrake fo robsta -
cles or stationary vehicles .If ,fo rexample, th e
detecte dvehicle turn s acorner and reveals an
obstacl eor stationary vehicle, DISTRONIC
PLU Swill no tbrake fo rthese .
RCrossing vehicles :DISTRONIC PLU Smay mis -
takenl ydet ectvehicles that are crossin gyour
lane. Activatin gDISTRONIC PLU Sat traffic
lights wit hcrossin gtraffic ,fo rexample, could
cause your vehicle to pull away unintention -
ally.
In suc hsituations, brake if necessary.
DISTRONIC PLU Sis then deactivated.
DISTRONI CPLUS wit hSteering Assis t
an dStop&Go Pilo t
General notes
Driving systems169
Driving an d parking
Z

a visual warning. A steering wheel symbol
appears in the multifunction display. If you have
still not started to steer and have not taken hold
of the steering wheel after five seconds at the
latest, a warning tone also sounds to remind you
to take control of the vehicle. Steering Assist
and Stop&Go Pilot are switched to passive.
DISTRONIC PLUS remains active.
Activating Steering Assist and Stop&Go
Pilot
XPress button;.
Indicator lamp :lights up. The DTR+:
Steering Assist. Onmessage appears in
the multifunction display. Steering Assist and
Stop&Go Pilot are activated.
Information in the multifunction display
If Steering Assist and Stop&Go Pilot are activa-
ted but is not ready for a steering intervention,
steering wheel symbol :appears in gray. If the
system provides you with support by means of
steering interventions, symbol :is shown in
green.
Deactivating Steering Assist and Stop&Go
Pilot
XPress button ;.
Indicator lamp :goes out. The DTR+:
SteeringAssist.Offmessage appears in
the multifunction display. Steering Assist and
Stop&Go Pilot are deactivated.
When DISTRONIC PLUS is deactivated or not
available, Steering Assist and Stop&Go Pilot are deactivated automatically.
HOLD function
General notes
The HOLD function can assist the driver in the
following situations:
Rwhen pulling away, especially on steep slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicle is kept stationary without the driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes
GWARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
!When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes automat-
ically in certain situations.
Driving systems171
Driving and parking
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To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
Rwhen towing the vehicle
Rin the car wash
Deactivating the HOLD function (
Ypage 172).
Activation conditions
You can activate the HOLD function if all of the
following conditions are fulfilled:
Rthe vehicle is stationary.
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/stop
function.
Rthe driver's door is closed or your seat belt is
fastened.
Rthe electric parking brake is released.
Rthe transmission is in position h,kori.
RDISTRONIC PLUS is deactivated.
Activating the HOLD function
XMake sure that the activation conditions are
met.
XDepress the brake pedal.
XQuickly depress the brake pedal further
until :appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
If depressing the brake pedal the first time does not activate the HOLD function, wait briefly and
then try again.
Deactivating the HOLD function
The HOLD function is deactivated automatically
if:
Ryou depress the accelerator and the trans-
mission is in position hork
Rthe transmission is in position j
Ryou depress the brake pedal again with a cer-
tain amount of pressure until display ë
disappears from the multifunction display
Ryou secure the vehicle using the electric park- ing brake
Ryou activate DISTRONIC PLUS
After a time, the electric parking brake secures
the vehicle and relieves the service brake.
When the HOLD function is activated, the trans-
mission is shifted automatically to position j
if:
Rthe driver's seat belt is not fastened and the
driver's door is open.
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
The electric parking brake secures the vehicle
automatically if the HOLD function is activated
when the vehicle is stationary and:
Ra system malfunction occurs.
Rthe power supply is insufficient.
If a malfunction occurs, the transmission may
also be shifted to position jautomatically.
AIR BODY CONTROL
General notes
AIR BODY CONTROL is an air suspension system
with variable damping for improved driving com- fort. All-round level control ensures the best
possible suspension and constant ground clear-
ance, even with a laden vehicle. When you drive
fast, the vehicle is lowered automatically to
improve driving safety and to reduce fuel con-
sumption. There is also the option to manually
adjust the vehicle level. AIR BODY CONTROL
consists of level setting, level control and the
ADS Adaptive Damping System.
The vehicle level can be set using the DYNAMIC SELECT switch (
Ypage 139) or the level button
(Ypage 173). The setting always corresponds
to the last selected function.
172Driving systems
Driving and parking

Active Parking Assist will only detect parking
spaces:
Rparallel or at right angles to the direction of
travel
Rthat are parallel to the direction of travel and
at least 59 in (1.5m) wide
Rthat are parallel to the direction of travel and
at least 39.5 in (1.0 m)longer than your vehi-
cle
Rat right angles to the direction of travel and at
least 39.5 in (1.0 m) wider than your vehicle
iNote that Active Parking Assist cannot
measure the size of a parking space if it is at
right angles to the direction of travel. You will need to judge whether your vehicle will fit into
the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol ;as a
status indicator in the instrument cluster. When
a parking space has been detected, an arrow
towards the right or the left also appears. By
default, Active Parking Assist only displays park-
ing spaces on the front-passenger side. Parking
spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain switched on until you acknowl-
edge the use of Active Parking Assist by press-
ing the abutton on the multifunction steer-
ing wheel. The system automatically determines
whether the parking space is parallel or at right
angles to the direction of travel.
A parking space is displayed while you are driv-
ing past it, and until you are approximately 50 ft
(15 m) away from it.
Parking
GWARNING
If you leave the vehicle when it is only being
braked by Active Parking Assist it could roll
away if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
iWhen PARKTRONIC detects obstacles,
Active Parking Assist brakes automatically
during the parking process. You are respon-
sible for braking in good time.
XStop the vehicle when the parking space sym-
bol shows the desired parking space in the
instrument cluster.
XShift the transmission to position k.
The StartParkAssist?Yes:OKNo:%
message appears in the multifunction display.
XTo cancel the procedure: press the%
button on the multifunction steering wheel or
pull away.
or
XTo park using Active Parking Assist: press
the a button on the multifunction steering
wheel.
The Park Assist Active Accelerate
and BrakeObserve Surroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steering wheel.
XBack up the vehicle, being ready to brake at all
times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Oth-
erwise Active Parking Assist will be canceled.
Active Parking Assist brakes the vehicle to a
standstill when the vehicle approaches the
rear border of the parking space.
Maneuvering may be required in tight parking spaces.
The Park
AssistActiveSelect DObserveSurroundingsmessage appears in the multi-
function display.
XWhile the vehicle is stationary, shift the trans-
mission to position h.
Active Parking Assist immediately steers in
the other direction.
180Driving systems
Driving and parking