
Note■The auxiliary heating only switches the blower on, if it has achieved a coolant
temperature of approx. 50 °C.■
At low outside temperatures, this can result in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operat-
ing problem.
■
So that warm air can flow into the vehicle interior after switching on the aux.
heating, you must maintain the comfort temperature normally selected by you,
leave the fan switched on and leave the air outlet vents in open. It is recom-
mended to put the air flow in the position
or
.
Switching on/off
Fig. 140
Button for direct power on / off of the auxiliary heating (heating
and ventilation) on the front panel of the Climatronic / manual air condi-
tioning
Read and observe
and on page 117 first.
The auxiliary heating (heating and ventilation) (hereinafter referred to as a
heater) can be switched on and off as follows.
Switching on
▶ Manually with the symbol key on the front panel of the Climatronic or the
manual air conditioning » Fig. 140.
▶ Manually with the symbol key on the radio remote control.
▶ Via an automatically programmed and activated pre-set time in the Infotain-
ment.
▶ Automatically according to the ambient conditions »
.
Switching off
▶ Manually with the symbol key on the front panel of the Climatronic or the
manual air conditioning » Fig. 140.
▶ Manually with the symbol key
on the radio remote control.
▶ Via an automatically programmed and activated pre-set time in the Infotain-
ment.
▶ Automatically when the warning light
in the instrument cluster illumi-
nates.
▶ Automatically according to the ambient conditions »
.
After switching the system off, the auxiliary heating will continue running a lit-
tle while longer in order to burn the remaining fuel in the auxiliary heater.
After switching off, coolant pump still runs for a short period.
Programming the auxiliary heating in the Infotainment
For vehicles with Climatronic: on the front panel of the Climatronic, press but-
ton
→
.
For vehicles with manual air conditioning: on the Infotainment, press button
→
.
When automatic switching on is activated, the indicator light in the symbol key
lights up
» Fig. 140 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 .118Using the system

Radio remote controlFig. 141
Radio remote control
Read and observe and on page 117 first.
Using the radio remote control, the aux. heating and ventilation (hereinafterreferred to as heater) can be switched on or off.
Function and description of the radio remote control » Fig. 141
Warning light
Aerial
Switch on the auxiliary heating
Switch off the auxiliary heating
To switch the auxiliary heating on or off, hold the remote control vertically,
with the aerial
B
» Fig. 141 pointing upwards. The antenna must not be cov-
ered with the fingers or the palm of the hand during this process.
The 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. 141MeaningLights 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.ABDisplay warning light A » Fig. 141MeaningQuickly 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 223.
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.
119Heating and ventilation

WARNINGNever let the vehicle roll with locked steering lock - there is a risk of acci-
dent!
Switching ignition on / off
Read and observe
and on page 122 first.
›
Press the button » Fig. 143 on page 122 briefly.
The ignition is switched on or off.
On vehicles fitted with a manual gearbox, the clutch pedal must not be de-
pressed while switching the ignition on or off, otherwise the system would try
to start.
On vehicles fitted with a automatic gearbox, the brake pedal must not be de-
pressed while switching the ignition on or off, otherwise the system would try
to start.
If the driver's door is opened while the ignition is on, an audible signal sounds
and the following message appears in the instrument cluster display.
Ignition switched on.IGNITION STILL ON
When leaving the vehicle always switch off the ignition.
Starting the engine
Read and observe
and on page 122 first.
Procedure for starting the engine
›
Firmly apply the handbrake.
›
For vehicles with manual transmission , shift gear stick to neutral, depress
the clutch pedal and hold it there until the engine starts.
›
On vehicles with automatic transmission , place the selector lever in position
P or N and depress the brake pedal until the engine starts.
›
Press the starter button » Fig. 143 on page 122 briefly – the engine starts au-
tomatically.
In vehicles with diesel engines after pressing the button, the glow plug warn-
ing light lights up. The engine starts after the warning light goes out.
Note■
The engine running noises may louder at first be louder for a short time after
starting the cold engine. This is quite normal and is not an operating problem.■
You should not switch on any major electrical components during the heat-
ing period otherwise the vehicle battery will be drained unnecessarily.
Switching off the engine
Read and observe
and on page 122 first.
Switching off
›
Stop the vehicle » page 128, Parking .
›
Press the button » Fig. 143 on page 122 briefly.
The engine and the ignition are switched off simultaneously.
Emergency shut-down
If necessary and in exceptional cases, the engine may even be turned off while
driving.
›
Press the starter button » Fig. 143 on page 122 for longer than 1 second or
twice within 1 second.
After the emergency stop of the engine, the steering lock will remain un-
locked.
CAUTION
Do not switch the engine off immediately at the end of your journey after the
engine has been operated over a prolonged period at high loads but leave it to
run at an idling speed for about 1 minute. This prevents any possible accumula-
tion of heat when the engine is switched off.
Note
After switching off the ignition, the radiator fan may intermittently continue to
operate for approx. 10 minutes.123Starting-off and Driving

Problems starting the engineFig. 144
Starting the engine - press the
button with the key
Read and observe and on page 122 first.
The key in the vehicle cannot be verified
If the key in the vehicle cannot be verified, then engine cannot be started by pressing a button.
One of the following message is shown in the information cluster display.
Key not detected. Owner's Manual!Key not found.NO KEY
The reasons for this may be:
▶ The battery in the key is almost out of charge.
▶ The key is malfunctioning
▶ There is interference in the signal between the system and the key (strong
electromagnetic field).
Try to start the engine by pressing the button with the key » Fig. 144.
System fault
If the following message appears on the display of the instrument cluster,
there is a system malfunction.
Keyless access system faulty.KEYLESS ACCESS SYSTEM FAULTY
Try to start the engine by pressing the button with the key » Fig. 144.
CAUTION
The key can only be verified if it is in the vehicle. It is therefore not always nec-
essary to know where the key is.Note■ When attempting to start, the key bit must be pointed towards the button
» Fig. 144 .■
If the engine fails to start after pressing the button with the key, seek spe-
cialist help.
START-STOPsystem
Introduction
This chapter contains information on the following subjects:
Operation
125
Manually deactivating/activating the system
126
Information messages
126
The START STOP system (hereinafter referred to as the system) reduces CO 2
emissions and harmful emissions, and saves fuel.
If the system determine that the engine is not needed when the vehicle stops
or is at a standstill (e.g. at the traffic lights), it turns off the engine and starts it
again when moving off.
The system function depends on many factors. Some of them are down to the
driver, the others are systemic and can neither be influenced nor identified.
Therefore the system may react differently in situations which seem identi-
cal from the driver's perspective.
The system is automatically activated every time the ignition is switched on
(even where this has previously been manually deactivated with the button ).
Note
If the engine has stopped due to the system, the ignition remains on.124Driving

Wet roads or road salt
The performance of the brakes can be delayed as the brake discs and brake
pads may be moist or have a coating of ice or layer of salt on them in winter.
The brakes are cleaned and dried by applying the brakes several times »
.
Corrosion
Corrosion on the brake discs and dirt on the bake pads occur if the vehicle has
been parked for a long period and if you do not make much use of the braking
system. The brakes are cleaned by applying the brakes several times »
.
Long or steep slopes
Before travelling a long distance with a steep gradient, reduce speed and shift
into the next lowest gear. As a result, the braking effect of the engine will be
used, reducing the load on the brakes. Any additional braking should be com-
pleted intermittently, not continuously.
Emergency brake display
If the brakes are applied in full and the vehicle systems evaluate the situation
as dangerous for the traffic following behind, the brake light flashes automati-
cally.
After the speed was reduced below around 10 km/h or the vehicle was stop-
ped, the brake light stops flashing and the hazard warning light system
switches on. The hazard warning light system is switched off automatically af-
ter accelerating or driving off again.
Faults in the brake surface
If it is found that the braking distance has suddenly become longer and that
the brake pedal can be depressed further, the brake system may be faulty.
Visit a specialist garage immediately and adjust your style of driving appropri-
ately, as you will not know the exact extent of the damage.
Low brake fluid level
An insufficient level of brake fluid may result in problems in the brake system.
The level of the brake fluid is monitored electronically » page 32,
Brake sys-
tem .
Brake booster
The brake booster increases the pressure generated with the brake pedal. The
brake booster only operates when the engine is running.
WARNINGOnly apply the brakes for the purpose of drying and cleaning the brake
discs if the traffic conditions permit this. Do not place any other road users
in jeopardy.
Handbrake
Fig. 147
Handbrake
Read and observe and on page 126 first.
The hand brake is used when stopping and parking for securing the vehicle
against unwanted movement.
Apply
›
Pull the handbrake lever firmly upwards.
Release
›
Pull the handbrake lever up slightly and at the same time push in the lock
button » Fig. 147 .
›
Move the lever right down while pressing the lock button.
The handbrake warning light
lights up when the handbrake is applied, pro-
vided the ignition is on.
A warning signal sounds if the vehicle is inadvertently driven off with the
handbrake applied.
The following message is shown in the information cluster display.
Release the handbrake!RELEASE HANDBRAKE
The handbrake warning is activated if the vehicle is driven at a speed of more
than around 5 km/h for more than 3 seconds.
127Starting-off and Driving

WARNINGPlease note that the handbrake must be fully released. A handbrake which
is only partially released can result in the rear brakes overheating. This can
have a negative effect on the operation of the brake system – risk of acci-
dent!
Parking
Read and observe
and on page 126 first.
When stopping and parking, look for a place with a suitable surface » .
Only carry out the activities while parking in the specified order.
›
Bring the vehicle to a stop and depress the brake pedal.
›
Firmly apply the handbrake.
›
On vehicles with automatic transmission place the selector lever in the P po-
sition.
›
Switch off the engine.
›
For vehicles with Manual transmission , select 1st gear or Reverse gear R .
›
Release the brake pedal.
WARNINGThe parts of the exhaust system can become very hot. Therefore, never
stop the vehicle at places where the underside of your vehicle can come in-
to contact with flammable materials such as dry grass, undergrowth,
leaves, spilled fuel or such like. - Risk of fire and serious injury can occur!
Manual shifting of gears and pedals
Introduction
This chapter contains information on the following subjects:
Manual gear changing
128
Pedals
128Manual gear changingFig. 148
Gearshift pattern of 5-gear or 6-
gear manual gearbox
The shift pattern for the individual gear positions is shown on the gear lever » Fig. 148 .
The gearshift indicator must be observed when changing gear » page 41.
Always depress the clutch pedal all the way down. This prevents uneven wear
on the clutch.
Reverse gear is engaged
›
Stop the vehicle.
›
The clutch pedal is fully depressed.
›
Move the shift lever to the idle position switch and press down.
›
Move the shift lever fully to the left and then forward into R position
» Fig. 148 .
The reversing lights will come on once reverse gear is engaged, provided the
ignition is on.
WARNINGNever engage reverse gear when driving – risk of accident!
CAUTION
■ If not in the process of changing gear, do not leave your hand on the gear-
shift lever while driving. The pressure from the hand can cause the gearshift
mechanism to wear excessively.■
When stopping on a slope, never try to hold the vehicle using the clutch and
the accelerator pedal – this may lead to damage to the clutch.
Pedals
The operation of the pedals must not be hindered under any circumstances!
128Driving

Assist systems
General information
Introduction
This chapter contains information on the following subjects:
Radar sensor
135WARNINGThe following general information regarding the use of assistance systems
must be observed.■
The assistance systems only serve to support and do not relieve the driv-
er of the responsibility for driving the vehicle.
■
The increased safety provision, as well as the increased occupant protec-
tion provided by the assistance systems must not tempt you to take risks -
risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
■
The assistance systems have physical and system-related limitations. For
this reason, the driver may experience some undesired or delayed system
responses in certain situations. You should therefore always be alert and
ready to intervene!
■
Only activate, deactivate or set the assistance systems so that you have
the vehicle fully under control in every traffic situation - risk of accident!
Radar sensor
Fig. 154
Mounting location of the radar
sensor
Read and observe on page 135 first.
The radar sensor » Fig. 154 (From here on referred to as sensor) is used to as-
sess the traffic situation in front of the vehicle.
The sensor can distinguish objects by radiating and receiving electromagnetic waves.
The sensor is a component of the ACC » page 150 and Front Assist
» page 155 systems.
The sensor function may be impaired in the events of one of the following. ▶ The sensor is soiled by mud, snow and the like.
▶ The area in front and around the sensor is obscured by labels, auxiliary lights
and similar.
▶ When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is covered or dirty, the corresponding message appears in the in-
strument cluster display for the ACC system » page 155 or Front Assist system
» page 157 .
WARNING■
If you suspect that the sensor is damaged, deactivate the ACC system
» page 150 and Front Assist system » page 155. 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 accidents! Have the sensor
checked by a specialist garage.
■
The area in front and around the sensor should not be obscured by labels,
auxiliary lights and similar. This can lead to impaired function of the sensor
- risk of accidents!
CAUTION
Remove the snow with a brush and the ice with a solvent-free de-icer.
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
136
Anti-lock braking system (ABS)
136
135Assist systems

Traction control (TCS)136Electronic differential lock (EDL and XDS)137
Driver Steering Recommendation (DSR)
137
Brake Assist (HBA)
137
Hill Start Assist (HHC)
137
Multi collision brake (MCB)
138
Trailer stabilization system (TSA)
138
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.
WARNINGThe general information relating to the use of assistance systems must be
observed » page 135, in section Introduction .
Stability Control (ESC)
Read and observe
on page 136 first.
The ESC improves vehicle stability in dynamic driving situations, such as when
the vehicle starts to skid.
The ESC monitors whether the desired direction of the current vehicle motion
is occurring. In case of any deviation (e.g. oversteer), the ESC automatically
brakes individual wheels to maintain the desired direction.
During an intervention of the system, the warning light flashes in the instru-
ment cluster.
Enable/disable ESC Sport
The activation of the ESC sports allows a sportier driving style. With a slight
over or under steering of the vehicle take no ESC interventions take place and
the TCS is restricted so that the spinning of the wheels of the driven axle can
occur.
The activation or deactivation of the ESC sports can be done in one of two
ways. ▶ By pressing the Symbol key for the activation and briefly pressing the but-
ton for the deactivation » Fig. 155 on page 136 .
▶ Infotainment » Owner´s Manual Infotainment , chapter CAR - vehicle set-
tings .
Upon activation, in the instrument cluster the indicator light comes on and
the display shows the following message.ESC sport: directional stabil. restricted.ESC SPORT
Upon deactivation, in the instrument cluster the control indicator
turns off
and the display shows the following message.
Stabilisation control (ESC) activated.ESC ON
Anti-lock braking system (ABS)
Read and observe
on page 136 first.
ABS prevents the wheels locking when braking. Thus helping the driver to
maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres- sure on the brake pedal.
Traction control (TCS)
Fig. 155
System button: Vehicle with ESC / vehicle without ESC
Read and observe
on page 136 first.
TCS prevents the spinning of the wheels of the driven axle. TCS reduces the
drive power transmitted to the wheels in the case of slipping wheels. Thus, for
example, driving on road surfaces with low grip is made easier.
136Driving