front axle MERCEDES-BENZ GLC 2017 Owners Manual

Tow-starting
Emergency engine starting ............ 333
Important safety notes .................. 330
Towing a trailer
Axle load, permissible .................... 371
Cleaning the trailer tow hitch ......... 316
Coupling up a trailer ...................... 204
Decoupling a trailer ....................... 206
Driving tips .................................... 203
ESP ®
(Electronic Stability Pro-
gram) ............................................... 73
Important safety notes .................. 202
Installing the ball coupling ............. 204
Lights display message .................. 239
Power supply ................................. 206
Pulling away with a trailer .............. 135
Removing the ball coupling ............ 206
Trailer loads ................................... 371
Towing away
Important safety guidelines ........... 330
Installing the towing eye ................ 331
Notes for 4MATIC vehicles ............ 333
Removing the towing eye ............... 332
Transporting the vehicle ................ 332
With both axles on the ground ....... 332
Towing eye ......................................... 320
Traffic reports
see also Digital Operator's Man-
ual .................................................. 268
Traffic Sign Assist
Display message ............................ 247
Function/notes ............................. 192
Important safety notes .................. 193
Instrument cluster display ............. 193
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 206
Trailer towing
Active Lane Keeping Assist ............ 202
Blind Spot Assist ............................ 195
Permissible trailer loads and
drawbar noseweights ..................... 206
Transfer case ..................................... 148
Transmission
Display message ............................ 253
see Automatic transmission Transmission oil
Temperature (on-board computer,
Mercedes-AMG vehi cles) ............... 224
Tran
smission position display ......... 142
Transporting the vehicle .................. 332
Trim pieces (cleaning instruc-
tions) .................................................. 317
Trip computer (on-board com-
puter) .................................................. 213
Trip odometer
Calling up ....................................... 212
Resetting (on-board computer) ...... 214
Trunk
see Cargo compartment
Trunk load (maximum) ...................... 370
Turn signals
Display message ............................ 239
Replacing bulbs (front) ................... 117
Switching on/off ........................... 112
Two-way radio
Frequencies ................................... 362
Installation ..................................... 362
Transmission output (maximum) .... 362
Type identification plate
see Vehicle identification plate
U
Unlocking
Emergency unlocking ....................... 84
From inside the vehicle (central
unlocking button) ............................. 83
USB devices
Connecting to the Media Inter-
face ............................................... 276
V
Vanity mirror (in the sun visor) ........ 291
Vehicle
Correct use ...................................... 31
Data acquisition ............................... 32
Display message ............................ 252
Electronics ..................................... 362
Equipment ....................................... 28
Individual settings .......................... 220
Limited Warranty ............................. 32
Loading .......................................... 346 Index 23

Problems with the transmission Problem
Possible causes/consequences and P Solutions
The transmission has
problems shifting gear. The transmission is losing oil. X
Have the transmission checked at a qualified specialist workshop
immediately.
The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear. The transmission is in emergency mode.
It is only possible to shift into second gear and reverse gear.X
Stop the vehicle. X
Shift the transmission to position ] .X
Switch off the engine. X
Wait at least ten seconds before restarting the engine. X
Shift the transmission to position [ or ^ .
If [ is selected, the transmission shifts to second gear; if ^ is
selected, the transmission shifts to reverse gear. X
Have the transmission checked at a qualified specialist workshop
immediately.
Transfer case This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always trans-
mitted to both axles.
! Performance tests may only be carried out
on a 2-axle dynamometer. The brake system
or transfer case could otherwise be damaged.
Contact a qualified specialist workshop for a
performance test.
! Since ESP ®
engages automatically, the igni-
tion must be switched off (the SmartKey or
Start/Stop button must be in position Z or
G ) if R
the electrical parking brake is being tested
using a dynamometer R
the vehicle is being towed with only one
axle raised (not permitted for vehicles with
4MATIC)
Otherwise, the brake system can be dam-
aged.
! Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as
doing so will damage the transmission. Refueling
Important safety notes
G WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before
refueling.
G WARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come
into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
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 with148
Refueling
Driving and parking

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.
X
Unscrew the protective cap from DEF refill
bottle C .X
Place DEF refill bottle C on the filler neck as
shown and screw it on clockwise until hand-
tight. X
Press DEF refill bottle C towards the filler
neck.
The DEF tank is filled. This may take up to one
minute.
When DEF refill bottle C is no longer pressed,
filling stops and the bottle may be taken off
again after being only partially emptied. X
Release DEF refill bottle C .X
Turn DEF refill bottle C counter-clockwise
and remove it. X
Screw the protective cap onto DEF refill bot-
tle C 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
G WARNING
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.
G WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example: R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start 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: R
the electric parking brake must be applied. R
the transmission must be in position ] and
the SmartKey must be removed from the igni-
tion lock. R
the front wheels must be turned towards the
curb on steep uphill or downhill gradients. R
the empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients. R
on 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.154
Parking
Driving and parking

When you take advantage of engine braking, a
drive wheel may not turn for some time, e.g.
on a slippery road surface. This could cause
damage to the drive train. This type of damage
is not covered by the Mercedes-Benz war-
ranty.
Heavy and light loads
G WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately. Drive
on for a short while. This allows the airflow to
cool the brakes more quickly.
Wet roads If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehicle
washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance. R
In order to prevent any salt build-up, apply the
brakes occasionally while paying attention to
the traffic conditions. R
Carefully depress the brake pedal and the
beginning and end of a journey. R
Maintain a greater distance to the vehicle
ahead.
Servicing the brakes
! The brake fluid level may be too low, if: R
if the red brake warning lamp lights up in
the instrument cluster and R
you hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately.
Consult a qualified specialist workshop to
arrange this.
! Vehicles with 4MATIC: function or per-
formance tests may only be carried out on a 2-
axle dynamometer. If you wish to operate the
vehicle on such a dynamometer, please con-
sult a qualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
! Vehicles with 4MATIC: the ESP ®
system
operates automatically. If the electric parking
brake is tested on a brake dynamometer, the
engine and ignition must be switched off: turn
the SmartKey in the ignition lock to position

For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings: R
brake disks that have been approved by
Mercedes-Benz R
brake pads/linings that have been approved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake pads/
linings on an axle at the same time. Always
install new brake pads/linings when replacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connection is matched.
The use of brake disks other than those
approved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
discs, such as when changing wheels, can lead
to a reduction in comfort when driving with light-
weight brake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved for
your vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard. Brake
fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
Driving on wet roads
Hydroplaning If water has accumulated to a certain depth on
the road surface, there is a danger of hydro-
planing occurring, even if: R
you drive at low speeds R
the tires have adequate tread depth
For this reason, in the event of heavy rain or in
conditions in which hydroplaning may occur,
you must drive in the following manner: R
lower your speed R
avoid ruts R
avoid sudden steering movements R
brake carefully
Driving on flooded roads
! Bear in mind that vehicles traveling in front
or in the opposite direction create waves. This
may cause the maximum permissible water
depth to be exceeded.
Failure to observe these notes may result in
damage to the engine, electrical systems and
transmission.
If you have to drive on stretches of road on which
water has collected, please bear in mind that: R
in the case of standing water, the water level
may be no higher than the lower edge of the
vehicle body R
you should drive no faster than walking pace
Winter driving
G WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
G DANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the
vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winter-proofed at a qualified
specialist workshop at the onset of winter.
Drive particularly carefully on slippery road sur-
faces. Avoid sudden acceleration, steering and Driving tips 161
Driving and parking Z

You will find permissible trailer loads under
"Technical data" ( Y
page 371).
Loading a trailer R
When loading the trailer, make sure that nei-
ther the permissible gross trailer weight nor
the permissible gross vehicle weight are
exceeded. The permissible gross vehicle
weight is indicated on the identification plate
on the B-pillar on the driver's side of the vehi-
cle.
You can find the maximum permissible values
on the type plates of your vehicle and the
trailer. When calculating how much weight
the vehicle and trailer may carry, pay atten-
tion to the respective lowest values. R
The trailer drawbar load on the ball coupling
must be added to the rear axle load to avoid
exceeding the permissible gross axle weight.
The permissible gross vehicle weight is indi-
cated on the identification plate on the B-pil-
lar on the driver's side of the vehicle.
Mercedes-Benz recommends a trailer load
where the trailer drawbar noseweight accounts
for 8% to 15% of the permissible gross trailer
weight.
Additional accessories, passengers and load
reduce the permissible trailer load and nose-
weight that your vehicle can tow.
Checking the vehicle and trailer weight R
Have the towing vehicle, including the driver,
passengers and load, and completely loaded
trailer weighed on a suitable weighing
machine. This will allow you to ensure that the
weights of the towing vehicle and trailer com-
ply with the maximum permissible values. R
Check the gross axle weight rating of the front
and rear axles, the gross weight of the trailer
and trailer drawbar load. Towing a trailer 207
Driving and parking Z

X
Remove th e towin g eye from th e retainer
( Y
page 320).X
Mercedes-AM G vehicles: use a suitable
object, e.g. a screwdriver, to pry off cover C
on th e fron t bumper from underneath. Tak e
th e cover from th e opening , but do no t
remove it .
Press th e mar k on cover C on th e rear
bumper inward and remove .X
All other vehicles: press th e mar k on
cover C inward and remove .X
Screw in th e towin g eye clockwise as far as it
will go and tighten it .
Vehicles wit h a trailer to w hitch do no t hav e a
bracke t for th e screw-in towin g eye at th e back.
Connect th e towbar to th e trailer to w hitch
( Y
page 204).
Removing the towing eye X
Unscrew and remove th e towin g eye.X
Attac h cover C to th e bumper and press until
it engages.
Towing a vehicle with both axles on
the ground The automatic transmission automatically shifts
to position ] when you open th e driver' s or
front-passenger door or when you remove th e
SmartKey from th e ignition lock. It is essential to
observ e th e followin g steps to ensur e that th e
automatic transmission remain s in position \\
during towing. X
Mak e sur e that th e vehicl e is stationary.X
Turn th e SmartKey to position H in th e igni-
tion lock. X
Depress and hold th e brak e pedal .X
Shift th e automatic transmission to position
\\ .X
Leav e th e SmartKey in position H in th e igni-
tion lock. X
Releas e th e brak e pedal .X
Releas e th e electric parking brake.X
Switc h on th e hazard warning lamp s
( Y
page 113).
In order to signal a chang e of direction when
towin g th e vehicl e wit h th e hazard warning
lamp s switched on , use th e combination switch
as usual. In this case, only th e indicator lamp s for th e direction of travel flash. Afte r resetting
th e combination switch , th e hazard warning
lamp start s flashin g again .
Transporting the vehicle
General notes
! When th e vehicl e is loade d for transport, th e
fron t and rear axles mus t be stationary and on
th e sam e transportation vehicle. Positioning
ove r th e connection poin t of th e transpor t
vehicl e is no t permitted. The driv e train may
otherwise be damaged.
! You may only secure th e vehicl e by th e
wheels, no t by part s of th e vehicl e suc h as
axl e or steering components. Otherwise, th e
vehicl e could be damaged.
The towin g eye or trailer to w hitch can be used
to pull th e vehicl e onto a trailer or transporte r if
you wish to transpor t it .X
Turn th e SmartKey to position H in th e igni-
tion lock. X
Shift th e automatic transmission to position
\\ .
As soon as th e vehicle ha s been loaded:X
Preven t th e vehicl e from rollin g away by
applyin g th e electric parking brake. X
Shift th e automatic transmission to position
] . X
Turn th e SmartKey to position

Notes on 4MATIC vehicles
! Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as
doing so will damage the transmission.
Vehicles with 4MATIC may either be towed away
with both axles on the ground or be loaded up
and transported.
If the vehicle's transmission, front, or rear axle is
damaged, have the vehicle transported on a
truck or trailer.
In the event of damage to the electrical sys-
tem: if the battery is defective, the automatic
transmission will be locked in position P . To shift
the automatic transmission to position N , you
must provide power to the vehicle's electrical
system in the same way as when jump-starting
( Y
page 328).
Have the vehicle transported on a transporter or
trailer.
Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission must
not be tow-started. You could otherwise dam-
age the automatic transmission.
i You can find information on "Jump-starting"
under ( Y
page 328).
Fuses
Important safety notes
G WARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper-
age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the
color and value. The fuse ratings are listed in the
fuse allocation chart.
The fuse allocation chart is on the fuse box in the
cargo compartment ( Y
page 334). If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified special-
ist workshop, e.g. an authorized Mercedes-Benz
Center.
! Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Otherwise, components or systems could be
damaged.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing i n or dirt could otherwise impair the oper-
a
tion of the fuses.
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
Before changing a fuse Observe the important safety notes
( Y
page 333) X
Switch off the engine. X
Switch off all electrical consumers. X
Make sure that the ignition is switched off
( Y
page 133).
or X
When using the SmartKey, turn the SmartKey
to position