Problems with the engine startFig. 122
Starting the engine - Press the
button with the key
Read and observe and on page 102 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 messages are shown in the information cluster display.
Key not detected. Owner´s manual!Key not found.NO KEY
This can be because of the following. ▶ 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 knob with the key » Fig. 122.
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 knob with the key » Fig. 122.
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. 122 .■
If engine fails to start after pressing the button with the key, seek specialist
help.
START-STOPsystem
Introduction
This chapter contains information on the following subjects:
Operation
105
Manually deactivating/activating
106
Information messages
106
The START-STOP system (hereinafter only referred to as "system") reduces the
CO 2 emissions, as well as harmful emissions and saves fuel.
If the system determine that the engine is not needed when the vehicle stops
(e.g. at the traffic lights), it turns off the engine and starts it again when mov-
ing off.
The system function depends on many factors. Some of them must be met by
the driver, the others are related to the system and cannot be influenced nor
recognised.
For this reason, the system can react differently in situations which are iden-
tical from the driver's perspective.
The system is automatically activated every time the ignition is switched on
(even if this was manually deactivated using the key ).
Note
If the engine was stopped by the system, the ignition remains on.104Driving
OperationFig. 123
Display
Vehicles with manual transmission
The motor is automatically switched off as soon as the vehicle comes to a halt,
the shift lever is shifted to the neutral position and the clutch pedal is re-
leased.
The motor is automatically started as soon as the clutch pedal is depressed.
Vehicles with automatic transmission
The motor is automatically switched off as soon as the vehicle comes to a
standstill and the brake pedal is actuated.
The motor is automatically started as soon as the brake pedal is released.
Conditions for the system function
The following conditions are required for the correct system function.
The driver's door is closed.
The driver has fastened the seat belt.
The bonnet is closed.
The driving speed exceeded 4 km/h after the last stop.
No trailer is coupled.
System status
The system status is shown on the display » Fig. 123 when stopped.
The engine is automatically switched off; when driving off again, the en-
gine is started automatically.
The motor is not automatically switched off.
Reasons for the engine running
Running the engine can be essential when stopped, for the following reasons. ▶ The engine temperature for the proper function of the system has not yet
been reached.
▶ The charge state of the vehicle battery is too low.
▶ The current consumption is too high.
▶ High air-conditioning or heating capacity (high fan speed, big difference be-
tween the desired and actual indoor temperature).
When the engine is shut-down automatically and the system detects that the
engine is required such as when the brake pedal is pressed repeatedly then
the system automatically starts the engine.
Infotainment display
Information about the current status of the system can be displayed in the In-
fotainment display » Owner´s Manual Infotainment , chapter CAR - Vehicle set-
tings (CAR button) .
Note
■
If the vehicle remains outdoors for a long time in minus temperatures or in
direct sunlight, it can take several hours until the internal temperature of the
vehicle battery reaches a suitable temperature for proper operation of the sys-
tem.■
If the driver's seat belt is removed for more than approx. 30 seconds or the
driver's door is opened during stop mode, the engine will have to be started
manually.
■
No automatic engine shut-down takes place when a vehicle with automatic
transmission is moving at low speed (e.g. during a traffic jam) and remains sta-
tionary after pressing the brake pedal lightly. Automatic engine shutdown
takes place if you press the brake pedal down with more force.
■
For vehicles with automatic transmission there is no automatic engine shut-
down when the system detects a manoeuvring action due to a large steering
angle.
105Starting-off and driving
Manually deactivating/activatingFig. 124
Button for the START-STOP sys-
tem
Deactivate/activate
›
Press the button
» Fig. 124 .
When system is deactivated, the warning light in the button illuminates.
If the system is deactivated, then it is automatically activated again after
switching the ignition off and on.
Note
If the system is automatically deactivated when the engine is turned off, then
the automatic start process takes place.
Information messages
The warning symbols are shown in the instrument cluster display.
Start the engine manually!START MANUALLY
If for example the driver's seat belt is stored, the engine must be started man-
ually.
On vehicles with the starter button the ignition is turned off by the first press
of the start button, only after pressing for the second time is the start process
initiated.
Error: start-stop systemSTART STOP ERROR
A system error is present. Seek help from a specialist garage.
Brakes and parking
Introduction
This chapter contains information on the following subjects:
Information for braking
106
Handbrake
107
Parking
108WARNING■ Greater physical effort is required for braking when the engine is switch-
ed off – risk of accident.■
The clutch pedal must be depressed when braking on a vehicle with man-
ual transmission, when the vehicle is in gear and at low revs. Otherwise,
the functionality of the brake system may be impaired – risk of accident!
■
When leaving the vehicle never leave persons leave unattended in the
vehicle who could release the brake. The vehicle might then move off – risk
of accident.
■
Observe the recommendations on the new brake pads » page 112.
CAUTION
Never let the brakes slip with light pressure on the pedal if braking is not nec-
essary. This causes the brakes to overheat and can also result in a longer brak-
ing distance and excessive wear.
Information for braking
Read and observe
and on page 106 first.
Wear-and-tear
The wear of the brake pads is dependent on the operating conditions and driv-
ing style.
The brake pads wear more quickly if a lot of journeys are completed in towns
and over short distances or if a very sporty style of driving is adopted.
Under these severe conditions , the thickness of the brake pads must also be
checked by a specialist garage between services.
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 »
.
106Driving
Corrosion
Corrosion on the brake discs and dirt on the brake 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 consider the situation
to be dangerous for the following traffic, the brake light flashes automatically.
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.
Fault in the brake system
If it is found that the braking distance has suddenly become longer and that
the brake pedal can be depressed further, there may be a fault in the brake
system.
Visit a specialist garage immediately and adjust your style of driving appropri-
ately as you will not know how great the damage is.
Low brake fluid level
An insufficient level of brake fluid may result in problems in the brake system.
The fluid level is monitored electronically » page 32,
Brake system
.
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.HandbrakeFig. 125
Handbrake
Read and observe and on page 106 first.
The handbrake is used when stopping and parking for securing the vehicle
against unwanted movement.
Apply
›
Pull the handbrake lever firmly upwards.
Undoing
›
Pull the handbrake lever up slightly while pushing in the locking button
» Fig. 125 .
›
Move the lever right down while pressing the lock button.
The handbrake warning light lights up when the handbrake is applied provi-
ded 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.
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!107Starting-off and driving
The gearshift indicator must be observed when changing gear » page 39.
Switching to manual shifting›
Push the gear selector from position D/S towards the right, or left in a right-
hand drive vehicle.
When switching to the manual shifting while driving, the current gear is main-
tained.
Shifting up gears
›
Press the selector lever forwards
+
» Fig. 129 .
Shifting down gears
›
Press the selector lever backwards
-
» Fig. 129 .
Note
■
It may be advantageous to use manual gear shifting when driving downhill,
for example. Shifting to a lower gear reduces the load on the brakes and hence
brake wear » page 106.■
When accelerating, the gearbox automatically shifts up into the higher gear
just before the maximum permissible engine speed is reached.
■
If a lower gear is selected, the gearbox does not shift down until there is no
risk of the engine overrevving.
Starting-off and driving
Read and observe
and on page 109 first.
Starting off
›
Start the engine.
›
Firmly depress and hold the brake pedal.
›
Press the lock button in the direction of
1
» Fig. 128 on page 110 and hold.
›
Move the selector lever into the desired position
» page 109and then release
the lock button.
›
Release the brake pedal and accelerate.
Stopping (while the car is moving)
›
Fully depress and hold the brake pedal and bring the vehicle to a stop.
›
Keep holding the brake pedal until driving is resumed.
The selector lever position N does not have to be selected when stopping for a
short time, such as at a cross roads.
Kickdown
The kickdown function allows you to achieve maximum acceleration by your
vehicle while driving.
When the accelerator pedal is fully depressed, the kickdown function is activa-
ted in any forward driving mode.
The gearbox shifts down one or more gears depending on the vehicle speed
and engine speed, and the vehicle accelerates.
The gearbox does not shift up into the highest gear until the engine has
reached its maximum revolutions for this gear range.WARNINGRapid acceleration, particularly on slippery roads, can lead to loss of control
of the vehicle – there is a risk of an accident.
Running-in and economical driving
Introduction
This chapter contains information on the following subjects:
Running-in
111
Tips for economical driving
112
DriveGreen function
112
The fuel consumption, degree of pollution and vehicle wear depend on driving
style, road condition, weather conditions and the like.
Running-in
Driving in the engine
The engine has to be run in during the first 1 500 kilometres. During this peri-
od, the driving style decides on the quality of the driving-in process.
During the first 1,000 km ,we recommend not driving faster than 3/4 of the
maximum permissible engine speed, not to drive at full throttle and not to use
a trailer.
In the range of 1,000 to 1,500 kilometres, the engine load can be increased up
to the maximum permitted engine speed.
New tyres
New tyres have to be “run in” since they do not offer optimal grip at first.
111Starting-off and driving
Drive especially carefully for the first 500 km or so.
New brake pads
New brake pads have to first “grind in” because these do not initially have the
best possible braking effect.
Drive especially carefully for the first 200 km or so.
Tips for economical driving
To achieve the lowest possible fuel consumption, the following instructions
must be observed.
Looking ahead when driving
Avoid unnecessary acceleration and braking.
Change gear in an energy saving and timely manner
Observe the recommended gear » page 39.
Avoid full throttle and high speeds
Fuel consumption can be reduced by half if only three-quarters of the possible
top speed of your vehicle is used.
Reducing idling
If the vehicle is fitted with the START - STOP system there is an automatic re-
duction of the idling. If the engine is stopped on vehicles without START-STOP
system, such as when waiting in a traffic jam, the fuel economy is already
greater after 30 - 40 s than the fuel quantity which is required for engine re-
start.
Avoid short distances
When driving a short distance of less than about 4 km, the engine cannot
reach its operating temperature. As long as the engine has not reached oper-
ating temperature, the fuel consumption is significantly higher than with the
engine hot.
Pay attention to the correct tyre inflation pressure being maintained
Further information » page 161.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 0.3 l/100 km. At a speed
of 100 - 120 km/h, a vehicle fitted with a roof rack cross member without a load
will use about 10 % more fuel than normal due to the increased aerodynamic
drag.
Saving electricity
Only turn on electrical consumers (e.g. seat, window and mirror heating, etc.)
for as long as necessary.
Use the cooling system economically
The air conditioning system compressor uses power from the engine when in
cooling mode, which will affect the fuel consumption.
It recommended to open the windows or the doors of a vehicle for which the
interior has been strongly heated through the effect of direct sunlight in order
to allow the heated air to escape.
The cooling system should not be switched on if the windows are open.
DriveGreen function
Fig. 130
Shown in the infotainment dis-
play
The DriveGreen function (hereinafter referred to as "DriveGreen") evaluates
the driving efficiency based on information relating to the driving style. Useful
tips for reducing fuel consumption are also offered.
DriveGreen can be displayed on the Infotainment as follows.
›
Press the button in the Infotainment and then in the display the function
keys one after the other
DriveGreen
.
A
driving liquid display
With the driving is liquid the display is near the green dot. When accelerating
or braking, the indicator moves down or up.
B
“Green leaf”
The leaf margin shown in green shows with a few seconds, the current drive
efficiency. When driving economically there are several green layers on the
edge of the leaf. If you are not driving economically, no green colour appears
and the leaf may disappear completely.
112Driving
Acute alert
If the driver does not react to the advance warning, the system briefly applies
the brake automatically via an active brake intervention to draw attention to
the potential danger of a collision again.
Automatic Braking
If the driver fails to respond to the acute warning, the system starts to apply
the brakes automatically with increasing stopping power in several stages.
Brake assist
If the driver brakes inadequate with an impending collision, the system auto-
matically increases braking force.
The braking assistance only occurs as long as the brake pedal is being firmly
pressed down.
Note
■ If an automatic brake intervention is triggered by the system, the pressure in
the brake system increases and the brake pedal cannot be operated with the
normal pedal stroke.■
The automatic braking interventions can be cancelled by pressing the accel-
erator pedal or by steering intervention.
Disable/enable
Fig. 147
Buttons/dial: on the operating lever/the multifunction steering
wheel
Read and observe
and on page 122 first.
The function is automatically activated each time the ignition is switched on.
The system should only be disabled in exceptional cases »
.
On vehicles with the MAXI DOT display, the system can be activated / deactiva-
ted in the main menu in menu item Assist systems
» page 42 .
Deactivation / activation in vehicles with segment displayButton
» Fig. 14 7ActionOperation
APress and hold at the top or downShow Front Assist menu itemBPress brieflyConfirm entry (disable / enable)
Deactivation / activation in vehicles with multi-function steering wheel
Button /dial
» Fig. 14 7
ActionOperation
CPress brieflyShow Front Assist menu itemDPress brieflyConfirm entry (disable / enable)
Disable / enable and setting in the Infotainment
In the Infotainment the entire system or the functions warning and distance warning can be disabled / enabled » Owner´s Manual Infotainment , chap-
ter CAR - Vehicle Settings .
If the distance-warning function was deactivated before switching off the igni-
tion, it remains deactivated after switching on the ignition.
WARNINGIn the following situations, Front Assist should be switched off for safety
reasons.■
When the vehicle is being towed away.
■
When the vehicle is on a rolling test bench.
■
If an unfounded warning or a system action was taken.
■
When on a truck, or a car ferry service or similar.
124Driving
SeatsArmrest71
Headrests70
Heating71
Rear seat72
Seat backrests72
Seats and headrest69
Secure variable loading floor
91
see Instrument cluster see Instrument cluster
27
Selector lever Refer to Selector lever
109
Selector lever lock Indicator light
35
Service137
Service interval display46
Warning light38
setting Lower position of the variable loading floor
90
Setting Seat belt height
12
seats and headrests69
Upper position of the variable loading floor89
Settings Interior mirror
68
Setting the Clock
31
Side airbag17
SmartGate Connection by searching for a Wi-Fi network
47
introductory information47
Password/PIN code change48
Setting48
Wi-Fi Direct48
SmartLink see Infotainment
4
Snow chains165
Sockets 12 V
77
Spare wheel163
remove168
stow168
Speed control Indicator light
35
Speed control system119
Speed limiter120
Indicator light35
Operation121
Operation description121
Speed symbol see Wheels
164
Spoiler138
Stabilisation system114
Stability Control (ESC)115
Staring engine Jump-starting
174
START-STOP104
Jump-starting174
Manually deactivating/activating the system106
operation105
Warning light38
START-STOP system104
Starter button Problems with the engine start
104
Steering column lock locking102
Steering column lock unlocking102
Switching off the engine103
Switch off the ignition103
Switch on the ignition103
Starting and stopping the engine at the push of the button
102
Starting and stopping the engine using the key 100
Starting engine Jump-starting
174
Starting the engine Starter button
103
START STOP Information messages
106
Start the engineKey101
Steering column lock locking Starter button
102
Steering column lock unlocking Starter button
102
Steering lock locking Key
100
Steering lock unlocking Key
100
Steering lock (engine start using push-button) Warning light
32
Steering wheel correct posture
9
setting9
Stop see Parking
108
Stopping the engine Key
101
Storage73
compartment beneath the front seat80
storage compartment Glasses compartment
79
Storage compartment in the doors
74
in the front arm rest79
in the front centre console75
in the rear centre console82
on the dash panel75
on the front passenger side80
on the side of the front seat75
Storage compartments73
sun visors65
Sun visors66
Switching lights on and off60
Switching off the engine Starter button
103
Switch off the ignition Key
101
Starter button103
208Index