Engine mount MERCEDES-BENZ GL-Class 2015 X166 Owner's Manual

Replacin
g ...................................... .429
Service life ..................................... 408
Sidewall (definition) ....................... 428
Speed rating (definition) ................ 427
Storing .......................................... .430
Structure and characteristics
(definition) ..................................... 426
Temperature .................................. 422
TIN (Tire Identification Number)
(definition) ..................................... 428
Tire bead (definition) ..................... .428
Tire pressure (definition) ................ 428
Tire pressures (recommended) ...... 427
Tire size (data) ............................... 434
Tire size designation, load-bearing capacity, speed rating .................... 423
Tire tread ....................................... 407
Tire tread (definition) ..................... 428
Total load limit (definition) ............. 429
Traction ......................................... 422
Traction (definition) ....................... 428
Tread wea r..................................... 422
TWR (permissible trailer drawbar
noseweight) (definition) ................. 428
Uniform Tire Quality Grading
Standards ...................................... 421
Uniform Tire Quality Grading
Standards (definition) .................... 427
Wear indicator (definition) ............. 429
Wheel and tire combination ........... 436
Wheel rim (definition) .................... 427
see Flat tire
Tool
see Vehicle tool kit
Top Tether ............................................ 64
Towing a trailer Active Parking Assist ..................... 232
Axle load, permissibl e.................... 459
Cleaning the trailer tow hitch ......... 382
Coupling up a traile r...................... 267
Decoupling a traile r....................... 269
Driving tips .................................... 265
ESP ®
(Electronic Stability Pro-
gram) ............................................... 75
Important safety notes .................. 264
Installing the ball coupling ............. 266
Mounting dimensions .................... 458 Power supply ................................. 271
Pulling away with a traile
r.............. 171
Removing the ball coupling ............ 270
Storing the ball coupling ................ 270
Trailer drive progra m..................... 257
Trailer load s................................... 459
Towing away
Important safety guidelines ........... 399
Installing the towing eye ................ 400
Removing the towing eye ............... 401
With both axles on the ground ....... 401
With the rear axle raised ................ 401
Tow-starting
Emergency engine starting ............ 402
Important safety notes .................. 399
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 270
Trailer towing Active Blind Spot Assist ................. 252
Active Lane Keeping Assist ............ 255
Blind Spot Assist ............................ 247
PARKTRONIC ................................. 227
Permissible trailer loads and
drawbar noseweights ..................... 270
Transfer case ..................................... 185
Transmission see Automatic transmission
Transmission position display ......... 176
Transmission position display
(DIRECT SELECT lever) ...................... 176
Transporting the vehicle .................. 401
Traveling uphill Brow of hill ..................................... 203
Driving downhill ............................. 203
Maximum gradient-climbing capa-
bility ............................................... 203
Trim pieces (cleaning instruc-
tions) .................................................. 384
Trip computer (on-board com-
puter) .................................................. 277
Trip odometer Calling up ....................................... 277
Resetting (on-board computer) ...... 278
Trunk
see Tailgate Index
21

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment 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 special-
ist workshops (Y page 29). Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 161).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 97).
This will speed up the cooling process and
the desired interior temperature will be
reached more quickly. i
The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces the amount of air supplied to the vehicle
interior. For this reason, you should alwaysobserve the interval for replacing the filter,which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
i It is possible that the residual heat func-
tion may be activated automatically an hour
after the SmartKey has been removed in
order to dry the air-conditioning system.
The vehicle is then ventilated for 30
minutes. 146
Overview of climate control systemsClimate control

Further information about permanent drive
program M(Y page 182).
Further information about temporary drive
program M(Y page 181).
i You can only change gear with the steer-
ing wheel paddle shifters when the trans-
mission is in position D.Automatic drive program (AMG vehi-
cles)
Automatic drive programs C and S Drive program
Cis characterized by the fol-
lowing:
R comfort-oriented engine and 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
Drive program Sis characterized by the fol-
lowing:
R sporty engine and transmission settings
R the automatic transmission shifting up
later
R the fuel consumption possibly being higher
as a result of the later automatic transmis- sion shift points
Manual drive program M General notes
In this drive program, you can briefly change
gear yourself by using the steering wheel pad- dle shifters. The transmission must be in posi-
tion D.
All vehicles (except AMG vehicles and
vehicles with the
ON&OFFROAD package): you can activate
manual drive program Musing the steering
wheel paddle shifters.
AMG vehicles: you can activate manual drive
program Min automatic drive programs Cand
S.
Vehicles with the ON&OFFROAD package: if manual drive program Mis deactivated
using the program selector button, you can
activate manual drive program Musing the
steering wheel paddle shifters.
i As well as temporary drive program
M,
you can also activate permanent drive pro-
gram M(Y page 180).
Further information about permanent drive
program M(Y page 182).
Activating
X Shift the transmission to position D.
X Pull the left or right steering wheel paddle
shifter (Y page 180).
Manual drive program Mis temporarily acti-
vated. The selected gear and Mappear in
the multifunction display.
Shifting gears
If you pull on the left or right steering wheel
paddle shifter, the automatic transmission
switches to manual drive program Mfor a
limited amount of time. Depending on which
paddle shifter is pulled, the automatic trans-
mission immediately shifts into the next gear down or up, if permitted.
X To shift up: pull the right-hand steering
wheel paddle shifter (Y page 180).
The automatic transmission shifts up to the
next gear.
i If the maximum engine speed on the cur-
rently engaged gear is reached and you
continue to accelerate, the automatic Automatic transmission
181Driving and parking Z

transmission automatically shifts up in
order to prevent engine damage.
X To shift down: pull on the left-hand steer-
ing wheel paddle shifter (Y page 180).
The automatic transmission shifts down to the next 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 Automatic down shifting occurs when
coasting.
Shift recommendation The gearshift recommendations assist you in
adopting an economical driving style. The rec- ommended gear is shown in the multifunction
display.
X Shift to recommended gear 0044according
to gearshift recommendation 0043when
shown in the multifunction display of the
instrument cluster.
Deactivating
If you have activated manual drive program
M , it will remain active for a certain amount of
time. Under certain conditions the minimum
amount of time is extended, e.g. in the case of lateral acceleration, during an overrun phase
or when driving on steep terrain.
If manual drive program Mhas been deacti-
vated, the automatic transmission shifts into
the automatic drive program that was last
selected. You can also deactivate manual drive pro-
gram Myourself:
X Pull on the right-hand steering wheel pad-
dle shifter and hold it in place (Y page 180).
or X Use the DIRECT SELECT lever to switch the
transmission position.
or
X AMG vehicles: use the program selector
button to change the drive program
(Y page 180).
Manual drive program Mis deactivated.
The automatic transmission switches into
the automatic drive program that was last
selected, i.e. Eor S.
or
X Vehicles with the
ON&OFFROAD packag e:use the selector
wheel to switch to the on-road program
(Y page 255) or the off-road program
(Y page 259). Manual drive program
General information In this drive program, you can permanently
change gear yourself by using the steering
wheel paddle shifters. The transmission must
be in position D.
i As well as this permanent drive program
M, you can also activate temporary drive
program M(Y page 181).
Switching on the manual drive program In manual drive program
M, you can change
gear using the steering wheel paddle shifters
if the transmission is in position D. You can
see the currently selected drive program and
which gear is engaged in the multifunction
display. 182
Automatic transmissionDriving and pa
rking

If you or others come into contact with fuel,
observe the following:
R Wash away fuel from skin immediately
using soap and water.
R If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with- out delay.
R If fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
R Immediately change out of clothing which
has come into contact with fuel. G
WARNING
Electrostatic buildup can create sparks and
ignite fuel vapors. There is a risk of fire and
explosion.
Always touch the vehicle body before opening the fuel filler flap or touching the fuel pump
nozzle. Any existing electrostatic buildup is
thereby discharged. G
WARNING
Vehicles with a diesel engine:
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
! Do not use gasoline to refuel vehicles with
a diesel engine. Do not use diesel to refuel
vehicles with a gasoline engine. Do not
switch on the ignition if you accidentally
refuel with the wrong fuel. Otherwise, the
fuel will enter the fuel system. Even small
amounts of the wrong fuel could result in
damage to the fuel system and the engine. The repair costs are high. Notify a qualified
specialist workshop and have the fuel tank and fuel lines drained completely. !
Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the igni-
tion if you accidentally refuel with the
wrong fuel. Otherwise, the fuel will enter
the fuel system. Even small amounts of the wrong fuel could result in damage to the
fuel system and the engine. Notify a quali-
fied specialist workshop and have the fuel
tank and fuel lines drained completely.
! 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 refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
If you overfill the fuel tank, fuel could spray
out when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
(Y page 448). Refueling
General information Pay attention to the important safety notes
(Y
page 185).
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the SmartKey or with KEYLESS-GO.
The position of the fuel filler cap is displayed
00B6 in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle. 186
RefuelingDriving and parking

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 expe-
rience 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 swal-
lowed. 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 with-
out 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 after- treatment system.
! The vehicle must be parked on level
ground to fill the DEF tank. The DEF tank
can only be filled as intended with the vehi-
cle parked on a level surface. This avoids
false level readings. Filling the tank is not permitted if the vehicle is not parked on a
level surface. There is a danger of overfill-
ing, which could result in damage to com-
ponents of the BlueTEC exhaust gas after-
treatment.
! Rinse surfaces that have come into con-
tact 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
residues crystallize after time and contam- inate 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 dam-
age.
For further information on DEF, see
(Y page 450).
You will find further information on DEF in the printed Operator's Manual under "Technical
data".
Opening the DEF filler cap The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the SmartKey or with KEYLESS-GO.
X Switch the ignition off.
X Press the fuel filler flap in the direction of
arrow 0043.
The fuel filler flap swings up.
X Turn blue DEF filler cap 0044counter-clock-
wise and remove it.
DEF filler cap 0044is secured with a plastic
strip. Refueling
189Driving and pa rking Z

X
Visit a qualified specialist workshop and
seek advice. Driving tips
General notes
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 equip-
ment while driving, you will be distracted from traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicleis stationary.
Observe the legal requirements for the coun- try in which you are driving. Some jurisdic-
tions 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 ft (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 carriers 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 driv-
ing 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 judg-
ment.
The possibility of a serious or even fatal acci-
dent is 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 tak-
ing 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 with-
out sufficient ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust fumes within legal limits. 194
Driving tipsDriving and parking

!
If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automati-
cally in certain situations. To prevent dam-
age to the vehicle, deactivate DISTRONIC
PLUS and the HOLD function in the follow-
ing or other similar situations:
R when towing the vehicle
R in the car wash
Deactivating the HOLD function
(Y page 219).
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary
R the engine is running
R the driver's door is closed or your seat belt
is fastened
R the electric parking brake is released
R the transmission is in position D,Ror N
R DISTRONIC PLUS is deactivated
Activating the HOLD function X
Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until 0043appears in the multifunction dis-
play.
The HOLD function is activated. You can
release the brake pedal.
i 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 automati-
cally if:
R you accelerate and the transmission is in
position Dor R.
R you shift the transmission to position P.
R you depress the brake pedal again with a
certain amount of pressure until 0043disap-
pears from the multifunction display.
R you secure the vehicle using the electric
parking brake.
R you activate DISTRONIC PLUS.
i After a time, the electric parking brake
secures the vehicle and relieves the service brake.
The electric parking brake automatically
secures the vehicle if the HOLD function is
activated and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off.
R a system malfunction occurs.
R the power supply is not sufficient.
On steep uphill or downhill inclines or if there
is a malfunction, the transmission may also
be automatically shifted into position P. AIRMATIC package
General notes AIRMATIC regulates the level of your vehicle.
As well as level control (Y page 221), your
vehicle can be equipped with ADS (Adaptive
Damping System) (Y page 220) and ACTIVE
CURVE SYSTEM (Y page 220).
Observe the notes on driving with a trailer
(Y page 265). Driving systems
219Driving and parking Z

If the current vehicle speed is too high, the
00C6 DSR symbol appears in the multifunc-
tion display with the Max. speed 25 mph
Max. speed 25 mph
message (Canada: 40 km/h
40 km/h).
i You cannot activate DSR if the SPORT on-
road program is activated. The 00C6DSR
symbol and the Not in Drive Program
Not in Drive Program
SPORT
SPORT message then appears in the multi-
function display.
Deactivating DSR
X Press button 0043.
Indicator lamp 0044goes out.
The 00C6 DSR symbol appears in the mul-
tifunction display with the Off
Off message.
DSR switches off automatically if you drive
faster than 28 mph (Canada: 45 km/h). The
00C6 DSR symbol appears in the multifunc-
tion display with the Off
Off message. The status
indicator in the multifunction display goes
out. You also hear a warning. On vehicles with the ON&OFFROAD package, if you select a
different on-road/off-road program, DSR is
also deactivated.
Changing the set speed X
To increase or decrease in 1 mph incre-
ments (Canada: 1 km/h increments):
briefly press the cruise control lever up 0043for a higher set speed or down
0044for a
lower set speed.
The set speed appears in the multifunction display with the 00C6DSR symbol. It is also
displayed in status indicator 0087.
When DSR is activated, you can change the
set speed to a value between 1 mph and
11 mph (Canada: between 2 km/h and
18 km/h).
i The DSR set speed is always changed in
1 mph increments (Canada: 1 km/h incre-
ments). This is regardless of whether you
press the cruise control lever to or beyond
the pressure point.
Off-road programs (vehicles with the
ON&OFFROAD package) General notes
The off-road programs assist you in driving
off-road. The engine's performance charac-
teristics and the gearshifting characteristics
of the automatic transmission are adapted for
this purpose. ABS, ESP ®
and 4ETS programs
especially adapted to off-road driving are acti-
vated. An accelerator pedal curve suitable for the terrain is selected, i.e. the accelerator
pedal must be depressed further to acceler-
ate.
Do not use the off-road programs on roads
that are snow-covered or icy or if you have
mounted snow chains on your vehicle.
For information on driving off-road, see
(Y page 199).
The following program messages are shown
in the multifunction display until the applica-
ble vehicle level is set. Up to off-road level 2,
you can hide the program messages using the 0038 or the 0076button on the multifunction
steering wheel. Driving systems
259Driving and parking Z

The differential lock improves the vehicle's
traction. 4ETS (Y page 73) controls the bal-
ance between both wheels on an axle.
You can only activate off-road program 2
when driving at speeds of 25 mph (40 km/h)
or below.
LOW RANGE off-road gear (vehicles
with the ON&OFFROAD package) Important safety notes
G
WARNING
If you select the LOW RANGE off-road gear on a slippery road surface, the wheels could lose traction:
R if you remove your foot from the accelera-
tor pedal when driving
R if off road ABS intervenes when braking
If the wheels lose traction. the vehicle can no
longer be steered. There is an increased dan-
ger of skidding and accidents.
Never select the LOW RANGE off-road gear
when driving on slippery road surfaces. G
WARNING
If you do not wait for the transfer case gear
change process to complete, the transfer
case could remain in the neutral position. The power transmission to the driven wheels is
then interrupted. There is a danger of the
vehicle rolling away unintentionally. There is a
risk of an accident.
Wait until the transfer case shift process is
completed.
Do not turn off the engine while changing gear
and do not shift the automatic transmission
to another position. General notes 0043
LOW RANGE off-road gear button
0044 LOW RANGE off-road gear indicator lamp HIGH RANGE
Position for all normal on-
road driving conditions
LOW RANGE
Off-road position for driv-
ing off-road and fording
The transmission ratio
between the engine and
wheels is only approx-
imately one third of that in
the HIGH RANGE road
position. Drive torque is
thus proportionately
higher.
Do not use LOW RANGE:
R on slippery road surfa-
ces, e.g. in the case of
slush
R on snow or ice-covered
roads
R if you have mounted
snow chains to your
vehicle The LOW RANGE off-road gear assists you in
driving off-road and when fording. When LOW
RANGE is engaged, the engine’s performance
characteristics and the gearshifting charac-
teristics of the automatic transmission are
adapted for this purpose.
Further information about "Driving off-road"
(Y page 199). You will find information about
driving safety systems in conjunction with Driving systems
261Driving and parking Z