2016 MERCEDES-BENZ GLS SUV radiator

Programming (button in the rear-
view mirror) ................................... 326
Synchronising the rolling code .......3 27
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 255
Gearshift paddles
see Steering wheel gearshift paddles
Gearshift program
SETUP (on-board computer) .......... 256
Genuine Mercedes-Benz parts ........... 26
Glove compartment .......................... 313
Google™ Local Search
See also Digital Owner's Manual ... 303 H
Hazard warning lamps ......................122
Head restraints
Adjusting ....................................... 104
Adjusting (electrically) ................... 105
Adjusting (manually) ..................... .104
Adjusting (rear) .............................. 105
Fitting/removing (rear) .................. 106
Luxury ............................................ 105
Headlamp
Cleaning system (notes) ................ 387
Headlamp flasher .............................. 122
Headlamps
Misting up ...................................... 125
Topping up the cleaning system .... 336
see Automatic headlamp mode
Heating
see Climate control
High-pressure cleaners .................... 339
Hill start assist .................................. 151
HOLD function
Deactivating ................................... 196
Display message ............................ 278
Function/notes ............................ .195
Home address
See also Digital Owner's Manual ... 303
Horn ...................................................... 33 I
Ignition lock see Key positions
Immobiliser .......................................... 78 Indicator and warning lamp
Restraint system ............................ 298
Indicator and warning lamps
Coolant .......................................... 299
Engine diagnostics ......................... 298
Indicator lamps
Display message ............................ 270
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 333
Instrument cluster
Overview .......................................... 35
Warning and indicator lamps ........... 35
Instrument cluster lighting .............. 241
Intelligent Light System
Activating/deactivating ................. 252
Display message ............................ 270
Overview ........................................ 123
Setting the dipped-beam head-
lamps for driving on the right/left .. 252
Interior lighting
Automatic control system .............. 125
Emergency lighting ........................ 126
General notes ................................ 125
Manual control ............................... 125
Overview ........................................ 125
Reading lamp ................................. 125
Interior motion sensor
Deactivating ..................................... 80
Function .......................................... .80
Priming ............................................ 80
Switching off .................................... 80
iPod ®
See also Digital Owner's Manual ... 303
ISOFIX child seat securing system ....59 J
Jack Declaration of conformity ................28
Storage location ............................ 345
Using ............................................. 371
Jump starting (engine) ...................... 354 Index
13

Plastic trim (cleaning instruc-
tions)
.................................................. 343
Power closing ...................................... 88
Power windows
see Side windows
PRE-SAFE ®
(anticipatory occupant
protection)
Operation ......................................... 56
PRE-SAFE ®
(preventive occupant
safety system)
Display message ............................2 64
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS)
Display message ............................ 265
Operation ......................................... 56
Protection against theft
ATA (Anti-Theft Alarm system) ......... 78
Immobiliser ...................................... 78
Interior motion sensor ..................... 80
Tow-away protection ........................ 79
Protection of the environment
General notes .................................. 26
Pulling away
Automatic transmission ................. 150
General notes ................................ 150
Hill start assist ............................... 151
Trailer ............................................ 151 Q
QR code Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 31
Qualified specialist workshop ........... 30R
RACETIMER (on-board computer) .... 256
Radiator cover ................................... 333
Radio
Selecting a station ......................... 247
see separate operating instructions
Radio mode
See also Digital Owner's Manual ... 303
Radio-based vehicle components
Declaration of conformity ................ 28
Rain closing feature
Sliding sunroof ................................. 98 Rain closing feature (panorama
sliding sunroof)
................................... 99
Reading lamp ..................................... 125
Rear bench seat
Folding the bench seat forwards/back ............................................... 316
Rear compartment
Exit/entry position (3rd row of
seats) ............................................. 108
Setting the air vents ..................... .145
Setting the temperature ................ 136
Rear foglamp
Display message ............................ 270
Switching on/off ........................... 121
Rear seat
Adjusting ....................................... 107
Display message ............................ 287
Rear Seat Entertainment System
AUX jacks ...................................... 311
AUX jacks CD/DVD drive .............. 311
Rear window heating
Problem (fault) ............................... 138
Switching on/off ........................... 138
Rear window wiper
Replacing the wiper blade .............. 130
Switching on/off ........................... 129
Rear-compartment seat belt sta-
tus indicator ........................................ 47
Rear-view mirror
Anti-dazzle mode (automatic) ....... .117
Dipping (manual )........................... 116
Refuelling
Fuel gaug e....................................... 35
Important safety notes .................. 163
Notes for Mercedes‑AMG vehi-
cles ................................................ 383
Refuelling process ......................... 164
see Fuel
Remote control
Auxiliary heating/ventilation .......... 141
Changing the batteries (auxiliary
heating) ......................................... 143
Garage door opener ....................... 326
Programming (garage door
opener) .......................................... 326
Replacing bulbs
Dipped-beam headlamp s............... 127 18
Index

Windscreen wipers
Problem (malfunction) .................. .130
Rear window wiper ........................ 129
Replacing the wiper blades ............ 129
Switching on/off ........................... 128
Winter operation
Overview ........................................ 363
Radiator cover ............................... 333
Slippery road surfaces ................... 175
Winter tyres
Limiting the speed (on-board com-
puter) ............................................. 252
M+S tyres ...................................... 363
Wiper blades
Cleaning ......................................... 340
Replacing ....................................... 129
Replacing (on the rear window) ..... 130
Replacing (windscreen) .................. 129
Wooden trim (cleaning instruc-
tions) ................................................. .343
Workshop
see Qualified specialist workshop Z
ZONE function Switching on/off ........................... 137 Index
25

Problem
Possible causes/consequences and
M
MSolutions The coolant temperature
display is showing more
than 120 †. The coolant warning lamp may also
be on and a warning tone
may sound. The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 335). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The cool-
ant is too hot and the engine is no longer being cooled sufficiently.
X If the coolant temperature is below 120 †, you can continue driving
to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. DYNAMIC SELECT controller
Use the DYNAMIC SELECT controller to change the drive program. Depending on the drive pro-
gram selected, the following vehicle character-
istics will change:
R the drive (engine and transmission manage-
ment)
R the transmission
R the suspension
R the steering
R the availability of the ECO start/stop function
If the ignition is switched off for less than four
hours, the previously selected drive program is
activated when the engine is next started. If the
ignition is switched off for more than four hours,
the Comfort drive program is activated when
the engine is next started. X
All vehicles (except Mercedes-AMG vehi-
cles):
turn DYNAMIC SELECT controller :as many times as necessary until the desired
drive program is selected.
The selected drive program appears in the
multifunction display. After five seconds the
display goes out.
In addition, the current drive program settings
are displayed in the multimedia system dis-
play.
Drive programs available (all vehicles
except Mercedes-AMG vehicles): Individual
Individual settings
Sport
Sporty driving characteris-
tics
Comfort
Comfortable and economi-
cal driving characteristics
Slippery
Optimal driving characteris-
tics on slippery or snow-
covered roads Off-road
Optimal driving characteris-
tics for easily negotiable off-
road terrain Offroad Plus
(vehicles with
Off-Road Engi-
neering pack-
age)
Optimal driving characteris-
tics for rough terrain DYNAMIC SELECT controller
155Driving and parking Z

R
you have switched on the turn signals. In this
case, the warnings are suppressed for a cer-
tain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive When Adaptive
Adaptive is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In this
case, the warnings are suppressed for a cer-
tain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lane quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
ing, the system detects certain conditions and
warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend
R the road has very wide lanes, e.g. a motorway
R the system detects solid lane markings
The warning vibration occurs later if:
R the road has narrow lanes
R you cut the corner on a bend Driving Assistance Plus package
General notes The Driving Assistance Plus package consists of
Distance Pilot DISTRONIC (Y page 184), Active
Blind Spot Assist (Y page 222) and Active Lane
Keeping Assist (Y page 224).
Active Blind Spot Assist General notes
Active Blind Spot Assist monitors the areas on
either side of the vehicle that are not directly
visible to the driver with two lateral, rear-facing
radar sensors. A warning lamp lights up in the
exterior mirrors and draws your attention to
vehicles detected in the monitored area. If you then switch on the corresponding turn signal to
change lanes, you will also receive a visual and
audible collision warning. If a risk of side impact
is detected, corrective braking may help you
avoid a collision. Active Blind Spot Assist eval-
uates the free space in the direction of travel
and to the side before making a course-correct- ing brake application. For this, Active Blind Spot
Assist uses the forward-facing radar sensors.
Active Blind Spot Assist supports you from a
speed of approximately 30 km/h.
Important safety notes
Active Blind Spot Assist is only an aid and is not
a substitute for attentive driving. G
WARNING
Active Blind Spot Assist does not react to
vehicles:
R overtaking too closely on the side, placing
them in the blind spot area
R if the difference in the speed of approach
and overtaking is too great
As a result, Active Blind Spot Assist may nei-
ther give warnings nor intervene in such sit-
uations. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and maintain a safe distance at the side of the vehicle.
Radar sensors
The Active Blind Spot Assist radar sensors are
integrated into the front and rear bumpers and
behind a cover in the radiator trim. Make sure
that the bumpers and the cover in the radiator
trim are free of dirt, ice or slush. The sensors
must not be covered, e.g. by cycle racks or over-
hanging loads. Following an accident or in the
event of damage to the bumpers, have the func- tion of the radar sensors checked at a qualifiedspecialist workshop. Active Blind Spot Assist
might otherwise no longer function properly.
Monitoring range G
WARNING
Active Blind Spot Assist does not detect all
traffic situations and road users. There is a
risk of an accident.
Always make sure that there is sufficient dis-
tance to the side for other traffic or obstacles. 222
Driving systemsDriving and pa
rking

Display messages
Possible causes/consequences and
M
MSolutions ?
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
A warning tone also sounds.
G WARNING
Never drive with an overheated engine. Driving when your engine is
overheated can cause any fluids that may have leaked into the engine
compartment to catch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is a risk of injury.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 168).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not blocked,
e.g. by frozen slush.
X Do not start the engine again until the display message goes out and
the coolant temperature is below 120 †. The engine may otherwisebe damaged.
X Pay attention to the coolant temperature gauge.
If the temperature increases again:
X Consult a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 120 †. #
See Owner's Manual See Owner's Manual The battery is no longer being charged.
A warning tone also sounds.
Possible causes:
R faulty alternator
R torn poly-V-belt
R a malfunction in the electronics
! Do not continue driving. The engine could otherwise overheat.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 168).
X Consult a qualified specialist workshop. 272
Display
messagesOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
M Solutions ?
N
The red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is not being cooled sufficiently.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 168).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 335).
X If you have to top up the coolant frequently, have the engine cooling system
checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X Do not start the engine again until the coolant temperature is below 120 †. The
engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. ?
N
The red coolant warning lamp comes on while the engine is running.
The coolant temperature has exceeded 120 †. The airflow to the engine radiator may be blocked or the coolant level may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Driving when your engine is overheated
can cause any fluids that may have leaked into the engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious burns, which can
occur just by opening the bonnet.
There is a risk of injury.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 168).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 335).
X If you have to top up the coolant frequently, have the engine cooling system
checked. 300
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions X
Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X If the coolant temperature is below 120 †, you can continue driving to the
nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. Driving systems
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ·
N
The red distance warning lamp lights up while the vehicle is in motion.
The distance to the vehicle in front is too small for the speed selected.
X Increase the distance. ·
N
The red distance warning lamp lights up while the vehicle is in motion. A warning
tone also sounds.
You are approaching a vehicle, a pedestrian or a stationary obstacle in your line of travel at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to brake or take
evasive action.
Further information on Distance Pilot DISTRONIC (Y page 184).
Further information on the distance warning function of Active Brake Assist
(Y page 70). Warning and indicator lamps in the instrument cluster
301On-board computer and displays Z