
Programming the auxiliary heating in the Infotainment
For vehicles with Climatronic: on the front panel of the Climatronic button
→
Press
For vehicles with manual air conditioning: button in the Infotainment fea-
ture
→
Press
When automatic switching on is activated, the indicator light in the symbol key
lights up » Fig. 159 for about 10 seconds after the ignition is turned off.
CAUTION
The automatic switching on and off the heating for rapid heating of the vehicle
interior can be disabled in the Infotainment » Owner´s Manual Infotainment ,
chapter Setting the heating and the cooling system .
Radio remote control
Fig. 160
Radio remote control
Read and observe and on page 124 first.
Using the radio remote control, the auxiliary heating and ventilation (herein-
after referred to as auxiliary heater) can be switched on or off.
Function and description of the radio remote control » Fig. 160
Warning light
Aerial
Switch on the auxiliary heating
Switch off the auxiliary heating
To switch the auxiliary heater on or off, hold the remote control vertically, with
the aerial
A
» Fig. 160 pointing upwards. The antenna must not be covered
with the fingers or the palm of the hand during this process.
ABThe auxiliary heating can only be switched on/off safely using the radio re-
mote control, if the distance between the radio remote control and the vehicle
is at least 2 m.
After pressing the button, the warning light in the remote control gives the
user different kinds of feedback.Display warning light A » Fig. 160MeaningLights up green for around 2 seconds.The auxiliary heating has been
switched on.Lights up red for around 2 seconds.The auxiliary heating has been
switched off.Slowly flashes green for around 2 sec-
onds.The ignition signal was not received.Quickly flashes green for around 2
seconds.The auxiliary heating is blocked, e. g
because the tank is nearly empty or
there is a fault in the auxiliary heat-
ing.Flashes red for around 2 seconds.The switch off signal was not re-
ceived.Lights up orange for around 2 sec-
onds, then green or red.The battery is weak, however the
switching on or off signal was re-
ceived.Lights up orange for around 2 sec-
onds, then flashes green or red.The battery is weak, however the
switching on or off signal was not re-
ceived.Flashes orange for around 5 seconds.The battery is discharged, however
the switching on or off signal was not
received.
Replace the battery » page 235.
CAUTION
■
The radio remote control comprises electronic components and must there-
fore be protected against water, severe impacts and direct sunlight.■
When the battery is fully charged, the range of the remote control is a few
hundred metres. Obstacles between the radio remote control and the vehicle,
bad weather conditions and a weaker battery can clearly reduce the range.
125Heating and ventilation

Radar sensorFig. 174
Mounting location of the radar
sensor
Read and observe on page 142 first.
The radar sensor (hereinafter referred to only sensor) uses electromagnetic
waves to capture the traffic situation ahead of the vehicle. The radar is located
under a cover » Fig. 174.
The sensor is part of the ACC » page 163 and Front Assist » page 168systems.
The sensor function may be impaired in the event of one of the following sit-
uations arising. ▶ The sensor cover is soiled by mud, snow and the like.
▶ The area in front and around the sensor cover is obscured by labels, auxiliary
lights and similar.
▶ When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
▶ In exceptional cases, the sensor may be covered up in the area under the
cover, e.g. due to snow.
If the sensor cover of the sensor is dirty or covered, a message to that effect
from the ACC » page 168 or Front Assist » page 171 system appears in the
instrument cluster display.
WARNING■ If you suspect that the sensor has been damaged, deactivate the ACC
» page 163 und Front Assist » page 168 system. Have the sensor checked
by a specialist garage.■
The sensor can become misaligned by collisions or by damage to the front
of the vehicle, the wheel arch or the underside of the vehicle. This can lead
to impaired function of the sensor - risk of accident! Have the sensor
checked by a specialist garage.
■
The area in front and around the sensor cover should not be obscured by
labels, auxiliary lights and similar. This can lead to impaired function of the
sensor - risk of accident!
CAUTION
Remove snow with a brush and ice with a solvent-free de-icer from the sensor
cover.
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
144
Anti-lock braking system (ABS)
144
Traction control (TCS)
144
Electronic differential lock (EDL and XDS)
145
Driver Steering Recommendation (DSR)
145
Brake Assist (HBA)
145
Hill Start Assist (HHC)
145
Multi collision brake (MCB)
145
Trailer stabilization system (TSA)
146
Auto Hold function
146
This chapter describes the functions of the brake and stabilization systems.
The error display is in Chapter » page 31, Warning lights .
The brake and stabilization systems are automatically activated each time the
ignition is switched on, unless otherwise indicated.
143Assist systems

Activation / deactivationRead and observe
on page 150 first.
The activation or deactivation of the system can be carried out in one of twoways. ▶ In the instrument cluster display » page 48, Menu item
Assist systems
.
▶ Infotainment » Owner´s Manual Infotainment , chapter CAR - vehicle set-
tings .
After switching off and switching on the ignition system several times the sys-
tem remains either activated or deactivated depending on the last setting.
Information messages
Read and observe
on page 150 first.
The warning messages are available for both the Rear Traffic Alert and the as-
sist systems for “Blind spot monitoring” together and are displayed in the in-
strument cluster.
Rear Traffic Alert/ Blind Spot Monitor currently not avail.
The system is not available for an unknown reason.
Stop the vehicle, switch off the engine and then start it again.
If after engine start the message persists, then the help of a professional or- ganisation is required.
Error: Rear Traffic Alert/ Blind Spot Monitor
A system error is present. Seek help from a specialist garage.
R. Traf. Alert/Blind Spt Mntr not avail. No sensor view.
The sensors are dirty or covered.
Stop the vehicle, stop the engine, clean the area in front of and around the
sensors or remove the obstructing item.
If, after the engine restarts, the message persists, the help of a professional
organisation should be sought.
Trailer: Rear Traf. Alert/Blind Spot Mntr not avail.
If the vehicle has a towing device, a trailer or any other accessory connected
that was done at the factors then the system is not available.
Rear View Camera
Introduction
This chapter contains information on the following subjects:
Operation
152
Activation / deactivation
152
Function keys
153
Guidelines and roadway
153
Mode - traverse parking
154
Mode - parallel parking
154
Mode - driving up to a trailer / distance monitoring
155
Mode - monitor the area behind the vehicle
155
The rear view camera (following as system) helps the driver when parking and
manoeuvring by displaying the area behind the vehicle in the Infotainment dis-
play (following as display).
There are four modes available for different situations during the park and ma-
noeuvring action.
WARNING■ The general information relating to the use of assistance systems must
be observed » page 142, in section Introduction .■
The system detects obstacles. The display of the auxiliary boxes and lines
is independent of the actual vehicle environment. The driver must judge for
themselves whether the vehicle can park safely in the selected parking
space.
■
Make sure that the camera lens is not dirty or covered, otherwise the sys-
tem function can be significantly impaired. Information on cleaning
» page 197 , Camera lens
CAUTION
■
The camera lens distorts and enlarges the field of view of the difference in
eye sight. The display is therefore only of limited use for estimating distances
to following vehicles.■
Some items, such as thin columns, chain link fences or lattice may not be
represented adequately in terms of display resolution.
151Assist systems

Mode - traverse parkingFig. 188
Display
Read and observe
and on page 151 first.
This mode supports the driver when reverse parking in a parking space that is
transverse to the roadway.
Parking manoeuvre
›
Select a suitable parking space.
›
Press the button
» Fig. 185 on page 152 .
›
At the selected parking space
1
» Fig. 188 slowly drive past and stop the ve-
hicle.
›
Engage reverse gear.
›
Adjust the steering wheel so that the lane lines lead into the parking space
2
.
›
Carefully move backward and steer so that the yellow lines are still leading
into the parking space.
›
At the latest when the red line of the back of the parking space (for example,
curb)
3
is touched, stop the vehicle.
Mode - parallel parkingFig. 189
Display
Read and observe
and on page 151 first.
This mode supports the driver when reverse parking in a parking space that is
parallel to the roadway.
Parking manoeuvre
›
When driving past a parking space push the button » Fig. 185
on page 152 .
›
Press the function key
C
» Fig. 186 on page 153 .
The display shows auxiliary boxes for both sides parallel to the road.
›
Switch on the indicator for the side on which you want to park.
The auxiliary boxes for the opposite side will be hidden.
›
Stop the vehicle stop so that there are no obstructions in the gap between
the auxiliary boxes
1
» Fig. 189 and the rear box does not extend on the side
of the parking space
2
.
›
Turn the steering wheel in the direction recommended
3
until the colour of
the trapezoidal frame
4
is green. Hold the steering wheel in this position.
›
Once the arrow
5
appears in the display, reverse (when reversing in the
parking space the arrow will get shorter).
The display shows the yellow lane lines
6
and the green line
7
.
If the steering angle is corrected while reversing then the red line
8
appears
(required roadway alignment).
›
In this case, adjust the steering wheel so that the yellow lines
6
the red line
8
fade into each other.
›
Carefully reverse until the display shows or the green line
7
is congruent
with the lateral boundary of the parking space
2
.
154Driving

Inspecting and replenishing
Fuel
Introduction
This chapter contains information on the following subjects:
Petrol and diesel refuelling
201
Lead-free petrol
202
Diesel fuel
203
The correct fuel grades for your vehicle are specified on the inside of the fuel
filler flap » Fig. 224 on page 201 .
WARNING■
The operating instructions of the refuelling system must always be fol-
lowed.■
Do not smoke when refuelling and do not use a mobile phone.
■
Fuel vapours are explosive - can be fatal!
CAUTION
■ Never drive until the fuel tank is completely empty! The irregular supply of
fuel can cause misfiring, which can result in damage to parts of the engine and
the exhaust system.■
Immediately remove any fuel that has spilled onto the vehicle's paintwork –
risk of paint damage.
■
If the vehicle was not purchased in the country where it was intended to be
operated, you should check whether the fuel specified by the manufacturer is
offered in the country where the vehicle will be operated. You should also per-
haps check whether the manufacturer has recommended a different fuel for
operation of the vehicle in the corresponding country. If no prescribed fuel is
available, then you must check whether it is permitted by the manufacturer to
operate the vehicle with another fuel type.
Petrol and diesel refuellingFig. 224
Open fuel filler flap / unscrew tank cap / place the tank cap on
the fuel filler flap
Fig. 225
Fuel filler tube on vehicles with
diesel engines
Read and observe and on page 201 first.
Refuelling can be done if the following conditions are met.
The vehicle is unlocked.
The engine and the ignition are switched off.
The auxiliary heating and ventilation is switched off » page 124.
›
Press on the fuel filler flap in the direction of the arrow
1
accordingly
» Fig. 224 .
›
Open the cover in the direction of the arrow
2
.
›
Unscrew the tank cap in the direction of arrow
3
.
›
Remove the tank cap and place in the recess on top of the fuel filler flap in
the direction of arrow
4
.
›
Insert the pump nozzle into the fuel filler neck as far as it will go, and refuel.
The fuel tank is full just as soon as the pump nozzle switches off for the first
time »
.
201Inspecting and replenishing

The proportion of coolant additive in the mixture must be at least 40%.
The coolant additive may be increased to a maximum of 60%.
The correct mixing ratio of water and coolant additive is to be checked if nec-
essary by a specialist garage or is to be restored if necessary.
The description of the coolant is shown in the coolant expansion reservoir
» Fig. 231 on page 211 .WARNINGThe engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en- gine compartment » page 206.■
The coolant is harmful to health.
■
Avoid contact with the coolant.
■
Coolant vapours are harmful to health.
■
Never open the end cover of the coolant expansion reservoir while the
engine is still warm. The cooling system is pressurized!
■
When opening the end cover of the coolant expansion reservoir, cover it
with a cloth to protect your face, hands and arms from hot steam or hot
coolant.
■
If any coolant splashes into your eyes, immediately rinse out your eyes
with clear water and contact a doctor as soon as possible.
■
Always keep the coolant in the original container, safe from people who
are not completely independent, especially children - there is a danger of
poisoning!
■
If coolant is swallowed, consult a doctor immediately.
■
Never spill operating fluids over the hot engine - risk of fire.
CAUTION
■ Do not continue if for some reason it is not possible to fill with coolant un-
der the current circumstances! Switch off the engine and seek assistance from
a specialist garage.■
If the expansion tank is empty, do not top up with coolant. The system could
ventilate - there is a risk of engine damage,
not continue! Switch off the en-
gine and seek assistance from a specialist garage.
■
The concentration of coolant additive in the coolant must never be under
40%.
■
Over 60% of coolant additive in the coolant reduces the antifreeze protec-
tion and cooling effect.
■
A coolant additive that does not comply with the correct specification can
significantly reduce the corrosion protection of the cooling system.
■ Any faults resulting from corrosion may cause a loss of coolant and can con-
sequently result in major engine damage.■
Do not fill the coolant above the mark
A
» Fig. 231 on page 211 .
■
If an error occurs, leading to the engine overheating, the help of a professio-
nal garage is to be sought - there is a risk of serious engine damage occurring.
■
Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.
■
Never cover the radiator - there is a risk of the engine overheating.
Note
The coolant capacity is approximately 1 l greater on vehicles that are fitted
with an auxiliary heater (auxiliary heating and ventilation).
Checking the coolant level
Fig. 231
Coolant expansion reservoir
Read and observe and on page 211 first.
The coolant expansion bottle is located in the engine compartment.
Coolant expansion reservoir » Fig. 231
Mark for the maximum permissible coolant level
Mark for the lowest permissible coolant level
The coolant level should be kept between the marks
A
and
B
.
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is standing on a horizontal surface.
The engine is turned off.
The engine is not heated.
The bonnet is open.
AB211Inspecting and replenishing

Winter time
The vehicle battery only has a proportion of the starting power in lower tem-
peratures. A discharged vehicle battery may already freeze at temperatures
just below 0 °C .
We therefore recommend that you have the battery checked and, if necessary,
recharged by a specialist garage before the start of the winter.
Note
The battery acid level is also checked regularly by a specialist garage as part of
the inspection service.
Charging
Read and observe
and on page 213 first.
A properly charged vehicle battery is essential for reliably starting the engine.A charging operation can be performed if the following conditions are satis-
fied.
The engine is turned off.
The ignition is switched off.
All consumers are turned off.
The bonnet is open.
“Fast charging” with high currents
›
Disconnect both battery cables (first of all “negative”, then “positive”).
›
Attach the terminal clamps of the charger to the battery terminals (red =
“positive”, black = “negative”).
›
Plug the mains cable of the charger into the power socket and switch on the
device.
›
After charging has been successful: Switch off the charger and remove the
mains cable from the power socket.
›
Only then disconnect the charger's terminal clamps.
›
Reconnect the cables to the battery (first “positive”, then “negative”).
Charging with low voltages
It is not necessary to disconnect the cables from the battery if you recharge
the vehicle battery, for example from a mini-charger.
Refer to the instructions of the charger manufacturer .
A charging current of 0.1 multiple of the total vehicle battery capacity (or low-
er) must be used until full charging is achieved.
The vent plugs of the vehicle battery should not be opened for charging.WARNING■ When you charge a battery, hydrogen is released, and a highly explosive
gas mixture is also produced. An explosion can be caused through sparkling
over during unclamping or loosening of the cable plug while the ignition is
on.■
Creating a bridge between the poles on the battery (e.g. with metal ob-
jects - cables) creates a short circuit - risk of damage to the battery, explo-
sion and burning of the battery, jets of acid spurting out.
■
Avoid creating sparks when working with cables and electrical devices.
Strong sparking represents a risk of injury.
■
Before carrying out any work on the electrical system, switch off the en-
gine, the ignition and all electrical consumers and disconnect the negative
terminal
.
■
“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
■
We therefore recommend that vehicle batteries be “rapidly charged” by a
specialist garage.
CAUTION
On vehicles with the START / STOP system or additional heating (auxiliary
heating), do not connect the pole terminal of the charger directly to the nega-
tive terminal of the vehicle battery but only to the engine earth » page 230.
Replacing
Read and observe
and on page 213 first.
The new vehicle battery must have the same capacity, voltage, current and thesame size as the original Battery. Suitable vehicle battery types can be pur-
chased from a specialist garage.
We recommend you have the battery replaced by a specialist garage.
Disconnecting and reconnecting
Read and observe
and on page 213 first.
Disconnecting
›
Switch off the ignition.
215Inspecting and replenishing

Removing/installing the towing eye›Manually screw the towing eye as far as it will go in the direction of the ar-
row 3
» Fig. 252 » .
For tightening purposes, we recommend, for example, using the wheel
wrench, towing eye from another vehicle or a similar object that can be pushed through the eye.
›
Unscrew the towing eye against the direction of the arrow
3
.
WARNINGThe towing eye must always be screwed in fully and firmly tightened, oth-
erwise the towing eye can tear when towing in or tow-starting.
Rear towing eye
Fig. 253
Removing the cap / fitting the towing eye
Read and observe
and on page 232 first.
Removing/installing the cap
›
Press on the fuel filler flap in the direction of the arrow
1
» Fig. 253 .
›
Remove the cap in the direction of the arrow
2
.
›
After unscrewing the towing eye, insert the cap in the area of arrow
1
.
›
Press the opposite side of the cap.
The cap must engage firmly.
Removing/installing the towing eye
›
Manually screw the towing eye as far as it will go in the direction of the ar-
row
3
» Fig. 253 » .
For tightening purposes, we recommend, for example, using the wheel
wrench, towing eye from another vehicle or a similar object that can be pushed
through the eye.›
Unscrew the towing eye against the direction of the arrow
3
.
WARNINGThe towing eye must always be screwed in fully and firmly tightened, oth-
erwise the towing eye can tear when towing in or tow-starting.
Vehicles with a tow hitch
Read and observe
and on page 232 first.
On vehicles with a factory-fitted towing device, there is no mount for the
screw-in towing eye behind and below the cap.
Use the detachable ball rod for towing » page 184, Hitch .
Towing the vehicle using the tow bar device is a viable alternative solution to
using the towing eye.
CAUTION
The ball rod and/or the vehicle can be damaged if an unsuitable tow bar is
used.
Remote control and removable light
Introduction
This chapter contains information on the following subjects:
Replacing the battery in the remote control key
234
Replace battery in KESSY key
234
Synchronising the remote control
235
replace battery in the remote control the auxiliary heating (auxiliary
heating)
235
Change batteries of the removable lamps
235
Depending on the equipment the battery can be replaced in the remote con-
trol key or KESSY key.
The key has to be synchronised if the vehicle cannot be unlocked or locked
with the key after replacing the battery » page 235.
233Emergency equipment and self-help