Coupling up a trailer
X Apply the electric parking brake manually.
X Shift the transmission to position P.
X Position the trailer on a level surface behind
the vehicle.
X Couple up the trailer.
X Establish the electrical connection between
the vehicle and the trailer.
X Check that the trailer lighting system is work-
ing.
X Push the combination switch upwards and
downwards and check whether the corre-
sponding turn signal indicator on the trailer is
flashing.
A connected trailer is only detected when the
electrical connection is established correctly
and the lighting system is working properly. The
function of other systems also depends on this, for example:
R ESP ®
R PARKTRONIC
R Active Parking Assist
R Active Blind Spot Assist
R Active Lane Keeping Assist Uncoupling a trailer
G
WARNING
If you uncouple a trailer with an engaged over- run brake, you could trap your hand between
the vehicle and the trailer drawbar. This poses a risk of injury.
Do not uncouple a trailer with an engaged
overrun brake. G
WARNING
Vehicles with level control:
If you disconnect the trailer cable, the vehicle is lowered. This can cause you or others to
become trapped between the vehicle body
and tyres, or underneath the vehicle. This
poses a risk of injury.
Make sure that no-one is in the immediate
vicinity of the wheel arch or underneath the
vehicle when disconnecting the trailer cable. !
Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your vehicle could
be damaged by the rebounding of the overrun
brake.
! Remove the adapter cable before folding in
the ball coupling. You could otherwise dam-
age the rear bumper and the adapter cable.
X Apply the electric parking brake manually.
X Shift the transmission to position P.
X Switch off the engine.
X Secure the vehicle and trailer against rolling
away.
X Remove the trailer cable and uncouple the
trailer. Trailer power supply
! Accessories with a maximum power con-
sumption of 180 W can be connected to the
permanent power supply.
The trailer battery may not be charged from
the power supply.
When it leaves the factory, your vehicle's trailer
socket is equipped with a permanent power
supply and a power supply that is switched on
via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin 10.
The trailer's permanent power supply is
switched off in the event of low on-board voltage
and after six hours at the latest.
You can find more information about installing
the trailer electrics at a qualified specialist work- shop.
To activate the switched power supply:
X Turn the key to position 2in the ignition lock
(Y page 144).
or
X Press the Start/Stop button twice on vehicles
with KEYLESS-GO or the KEYLESS-GO start
function (Y page 144).222
Towing a trailerDriving and parking
a R
In all menus: confirms the selected
entry in the list
R In the Radio
Radio orMedia
Media menu:
opens the list of available radio
sources or media
R In the Telephone Telephone menu: switches
to the phone book and starts dial-
ling the selected number ñ R
Vehicles with multimedia system
Audio 20:
Switches off voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
R Vehicles with multimedia system
COMAND Online:
Switches off LINGUATRONIC (see
the separate operating instruc-
tions) % Press briefly:
R Back
R In the Radio Radio orMedia
Media menu: dese-
lects the track or station list or list
of available radio sources or media
R Hides display messages
R Exits the telephone book/redial
memory % Press and hold:
R
Calls up the standard display in the
Trip Trip menu Right control panel
~ R
Rejects or ends a call
R Exits the telephone book/redial
memory 6 R
Makes or accepts a call
R Switches to the redial memory W
X R
Adjusts the volume 8 R
Mute ó R
Vehicles with multimedia system
Audio 20:
Switches on voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
R Vehicles with multimedia system
COMAND Online:
Switches on LINGUATRONIC (see
the separate operating instruc-
tions) Multifunction display
:
Drive program (Y page 155)
; Transmission position (Y page 156)
= Additional speedometer
? Display
A Time
B Outside temperature (Y page 229)
Display panel ?shows the selected menu or
submenu and display messages.
X To open the menu list: pressòon the
steering wheel.
The menu list appears on the display
panel ?.
Possible readings on the multifunction dis-
play:
R ZGearshift recommendation, with manual
gearshifting (Y page 160)
R j Active Parking Assist (Y page 194)230
Displays and operationOn-board computer and displays
Other status indicators of the naviga-
tion system :
Additional information
Other possible additional information: R New route...
New route... orCalculating route...
Calculating route...
A new route is calculated.
R Road not mapped
Road not mapped
The vehicle position is inside the area of the
digital map but the road is not recognised, e.g. new roads, car parks or private land.
R No route
No route
No route could be calculated to the selected
destination.
R Off map Off map
The map for the current vehicle position is not
available.
R O
You have reached the destination or a stop-
over. Radio menu
:
Waveband
; Station with preset position =
Artist name
? Track name
The multifunction display shows station ;with
station frequency or station name. The preset
position is displayed along with station ;only if
this has been stored. You can store radio sta-
tions in the multimedia system.
X Switch on the multimedia system.
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Radio Radiomenu.
X Confirm by pressing aon the steering
wheel.
Currently set station ;appears on the mul-
tifunction display.
X To open the channel list: press the:or
9 button briefly.
X To select a station in the station list: press
the : or9 button briefly.
X To select a station in the station list using
rapid scrolling: press and hold the :or
9 button.
X To select the waveband or station mem-
ory:
press abriefly.
X Press :or9 to select the waveband or
station memory.
X Press ato confirm the selection.
i DAB radio mode (Digital
AudioBroadcast-
ing) is an optimised digital transmission
standard designed for the mobile reception of
radio transmissions. Media menu
Changing the media source You can change the media source and playback
mode (audio, video or TV) at any time in the
Media Media menu.
X Switch on the multimedia system.
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Media
Mediamenu. 236
Menus and submenusOn-board computer and displays
X
Confirm by pressing aon the steering
wheel.
X Press :or9 to select the Vehicle
Vehicle
submenu.
X Press ato confirm.
X Press :or9 to select the Limit
Limit
speed (winter tyres)
speed (winter tyres) function.
The current setting appears.
X Press ato confirm.
X Press :or9 to set permanent SPEED-
TRONIC in increments of ten (160 km/h 160 km/hto
240 km/h
240 km/h). The Off
Off setting switches perma-
nent SPEEDTRONIC off.
X Press the abutton to store the entry.
Further information on permanent SPEED-
TRONIC (Y page 177).
Restoring the factory settings X
Press the òbutton on the steering wheel
to open the menu list.
X Press :or9 on the steering wheel to
select the Settings Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press :or9 to select the Factory
Factory
settings
settings submenu.
X Press ato confirm.
The Reset all settings?
Reset all settings? function
appears.
X Press :or9 to select No
NoorYes
Yes .
X Press the abutton to confirm the selec-
tion.
If you have selected Yes Yes, the multifunction
display shows a confirmation message.
For safety reasons, not all functions will be
reset: the Limit speed (winter tyres)
Limit speed (winter tyres) per-
manent SPEEDTRONIC function can only be set
in the Vehicle
Vehicle submenu. AMG menu (Mercedes-AMG vehicles)
Warm-up :
Digital speedometer
; Gear indicator
= Charge-air pressure
? Engine oil temperature
A Transmission oil temperature
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the AMG
AMG menu.
X Confirm by pressing aon the steering
wheel.
Engine and transmission fluid tempera-
tures: when the engine and transmission are
at normal operating temperature, oil temper-
atures ?and Aare displayed in white on the
multifunction display.
If the multifunction display shows oil temper- ature ?orA in blue, the engine or the
transmission are not yet at normal operating
temperature. Avoid using the full output of the
engine during this time.
Traffic Sign Assist display Menus and submenus
245On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative inoperative See
SeeOwn‐
Own‐
er's Manual
er's Manual EBD (electronic brake force distribution), ABS and ESP
®
are faulty.
Other driving systems and driving safety systems may also be mal-
functioning.
In addition, the ÷and! warning lamps light up on the instru-
ment cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore lock
if you brake hard, for example.
The steerability and braking characteristics may be severely affected. The braking distance may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
Increased risk of skidding and/or accident!
X Drive on carefully.
X Consult a qualified specialist workshop immediately. !
Turn on the igni‐ Turn on the igni‐
tion tion
to
torelease
release the
the
parking brake
parking brake The red
!indicator lamp lights up.
You attempted to release the electric parking brake while the ignition
was switched off.
X Switch the ignition on. !
Release parking Release parking
brake brake The red
!indicator lamp flashes and a warning tone sounds. A
condition for automatic release of the electric parking brake is not
fulfilled (Y page 169).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. The red
!indicator lamp flashes and a warning tone sounds.
You are initiating emergency braking using the electric parking brake
(Y page 170). !
Parking brake See Parking brake See
Owner's Manual Owner's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake lever for at least ten seconds.
X Shift the transmission to position P.
X Consult a qualified specialist workshop. 252
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp and the red !indicator lamp are lit.
The electric parking brake is malfunctioning.
To release:
X Turn the ignition off and then back on.
X Release the electric parking brake manually.
or
X Release the electric parking brake automatically (Y page 169).
If the electric parking brake still cannot be released:
X Do not drive on.
X Consult a qualified specialist workshop. The red
!indicator lamp flashes and the yellow !warning lamp
is lit.
The electric parking brake is malfunctioning.
To release:
X Turn the ignition off and then back on.
X Release the electric parking brake manually.
To apply: X Turn the ignition off and then back on.
X Apply the electric parking brake manually.
If the red !indicator lamp continues to flash:
X Do not drive on.
X Secure the vehicle against rolling away (Y page 365).
X Shift the transmission to position P.
X Turn the front wheels towards the kerb.
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up. The red !indicator lamp
flashes for about ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit.
The electric parking brake is malfunctioning.
X Switch off the ignition and switch it back on.
X Apply the electric parking brake.
If you cannot apply the electric parking brake:
X Shift the transmission to position P.
X Consult a qualified specialist workshop.
If it is not possible to release the electric parking brake manually: X Release the electric parking brake automatically (Y page 169).
If the electric parking brake still cannot be released:
X Consult a qualified specialist workshop. Display
messages
253On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp lights up. If you manually apply or
release the electric parking brake, the red !indicator lamp
flashes.
The electric parking brake is malfunctioning. The electric parking
brake cannot be applied manually.
X Shift the transmission to position P, as the electric parking brake is
not applied automatically.
X Consult a qualified specialist workshop.
If it is not possible to release the electric parking brake manually:
X Release the electric parking brake automatically (Y page 169).!
Parking brake inop‐ Parking brake inop‐
erative erative The yellow
!warning lamp lights up. The red !indicator lamp
flashes for about ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
X Rectify the cause of the overvoltage or undervoltage, e.g. by charg-
ing the battery or restarting the engine.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be applied or released: X Switch off the ignition and switch it back on.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied:
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up and the red !indicator
lamp flashes.
The electric parking brake cannot be applied manually.
X Shift the transmission to position P.
X Consult a qualified specialist workshop. J
Check brake fluid Check brake fluid
level level There is insufficient brake fluid in the brake fluid reservoir.
In addition, the red Jwarning lamp lights up on the instrument
cluster and a warning tone sounds.
G WARNING
Braking efficiency may be impaired.
There is a risk of an accident!
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving.
X Secure the vehicle against rolling away (Y page 167).
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This does not correct the fault. 254
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
M
MSolutions Wheel sensor(s)
Wheel sensor(s)
missing missing There is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed on the mul-
tifunction display.
X
Have the faulty tyre pressure sensor replaced at a qualified spe-
cialist workshop. Tyre Tyre
press.
press. monitor
monitor
inoperative No
inoperative No
wheel sensors wheel sensors The wheels fitted do not have suitable tyre pressure sensors. The tyre
pressure monitor is deactivated.
X Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitor is activated automatically after driving for
a few minutes. Tyre Tyre
press.
press. monitor
monitor
inoperative
inoperative The tyre pressure monitor is faulty.
X Consult a qualified specialist workshop. Vehicle
Display messages
Possible causes/consequences and
M
MSolutions To start engine,
To start engine,
shift to either P shift to either P
or N or N You have attempted to start the engine with the transmission in posi-
tion Ror D.
X Shift the transmission to position Por N. Apply
Apply
brake
braketo
todese‐
dese‐
lect Park (P) posi‐
lect Park (P) posi‐
tion tion You have attempted to shift the transmission to position
D,Ror N
without depressing the brake pedal.
X Depress the brake pedal. To shift out of P
To shift out of P
or or
N,
N,depress
depress brake
brake
and start engine
and start engine With the engine switched off, you have attempted to shift the trans-
mission out of position Por Ninto another transmission position.
X Depress the brake pedal.
X Start the engine. Risk of vehicle
Risk of vehicle
rolling Transmis‐ rolling Transmis‐
sion not in P sion not in P The driver's door is open or not fully closed and the transmission is in
position R,Nor D.
A warning tone also sounds.
G WARNING
The vehicle may roll away.
There is a risk of an accident.
X Shift the transmission to position P.
X Secure the vehicle against rolling (Y page 167).
X Close the driver's door fully. Only select Park
Only select Park
(P) (P)
when
when vehicle
vehicle is
is
stationary
stationary The vehicle is moving.
X
Stop the vehicle, paying attention to road and traffic conditions.
X Shift the transmission to position P. Display
messages
275On-board computer and displays Z