144Driving and operatingCaution
Avoid contact of the paintwork withAdBlue.
In case of contact, rinse off with water.
AdBlue freezes at a temperature of
approx. -11 °C. As the vehicle is
equipped with an AdBlue preheater,
the emissions reduction at low
temperatures is ensured. The AdBlue
preheater works automatically.
Note
Frozen and again liquefied AdBlue is usable without quality loss.
The typical AdBlue consumption is
approx. 0.85 l per 1000 km, but can
also be higher depending on driving
behaviour (e.g. high load or towing).
Level warnings
Depending on the calculated range of AdBlue, different messages are
displayed in the Driver Information
Centre. The messages and the
restrictions are a legal requirement.
1. The first possible warning is Top
up emissions additive: Starting
prevented in 2400 km .
When switching on the ignition,
this warning will show up once
briefly with the calculated range.
Additionally, control indicator u
will illuminate and a chime will
sound. Driving is possible without
any restrictions.
When driving, the message is
displayed every 300 km until the
additive tank has been topped-up.
2. The next warning level is entered with a range below 600 km. Themessage with the current range
will always be displayed when
ignition is switched on.
Additionally, control indicator u
will flash and a chime will sound.
Refill AdBlue before entering the
next warning level.
When driving, the message is
displayed every 30 seconds until
the additive tank has been
topped-up.
3. The last warning level is entered when the AdBlue tank is empty.Restart of the engine is not
possible. The following warning
message will be displayed:
Top up emissions additive:
Starting prevented
Additionally, control indicator u
will flash and a chime will sound.
Refill the tank to a level of at least
5 l of AdBlue, otherwise restarting
of the engine is not possible.
High emission warnings In the event of a fault with the
emissions control system, different
messages are displayed in the Driver
Information Centre. The messages
and the restrictions are a legal
requirement.
1. If a fault is detected for the first time, the warning Emissions fault
is displayed.
Additionally, control indicators u,
C and Z will illuminate and a
chime will sound. Driving is
possible without any restrictions.
If it is a temporary fault, the alert
disappears during the next
146Driving and operatingNote
When unscrewing the protective cap from the filler neck, ammonia fumes
may emerge. Do not inhale as the
fumes have a pungent smell. The
fumes are not harmful by inhalation.
The AdBlue tank should be filled
completely. This must be done if the
warning message regarding
prevention of an engine restart is
already displayed.
The vehicle must be parked on a level surface.
The filler neck for AdBlue is located
behind the fuel filler flap, which is
located at right rear side of the
vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition switch.
2. Close all doors to avoid ammonia fumes entering the interior of the
vehicle.
3. Release the fuel filler flap by pushing the flap 3 204.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty, or
until the flow from the canister has stopped. This can take up to
5 minutes.
8. Place the canister on the ground to empty the hose, wait
15 seconds.
9. Unscrew the hose from the filler neck.
10. Mount the protective cap and turn
clockwise until it engages.
Note
Dispose of AdBlue canister
according to environmental
requirements. Hose can be reused
after flushing with clear water before
AdBlue dries out.
Driving and operating147Automatic transmission
electrified
This vehicle is a plug-in hybrid
vehicle. It has a combustion engine
and an automatic transmission with
integrated electrical engine which
enables electrical driving and
charging of the battery during the
deceleration and the braking of the
vehicle. Additionally, the battery can
be charged using a cable, e.g., at
domestic electric outlets or public
charging stations. The all-wheel drive version has a second electrical
engine for the rear axle.Gear selectionP:park position, front wheels are
locked, engage only when the
vehicle is stationary and the
parking brake is appliedR:reverse gear, engage only
when the vehicle is stationaryN/P:neutralD/B:automatic mode / automatic
mode with one-pedal driving
Do not accelerate while engaging a
gear. Never depress the accelerator
pedal and brake pedal at the same
time.
When a gear is engaged, the vehicle
slowly begins to creep when the
brake is released.Shifting in / out of P
To shift into P, press P on the selector
lever.
To shift out of P:
1. Depress brake pedal and press the release button.
2. To shift into R, push the selector
forwards beyond the point of
resistance.
To shift into D, push the selector
backwards beyond the point of
resistance.
To shift into N, push the selector
forwards or backwards without
passing the point of resistance.Shifting into R 1. Depress the brake pedal and press the release button.
2. Shift into R using the gear
selector.Shifting into / out of B
B can only be activated if D is
selected.
Driving and operating149P:park position, front wheels are
locked, engage only when the
vehicle is stationary and the
parking brake is appliedR:reverse gear, engage only when
the vehicle is stationaryN:neutralD:automatic modeM:manual mode+:upshift in manual mode-:downshift in manual mode
The selector lever is locked in P and
can only be moved when the ignition is on and the brake pedal is applied.
The engine can only be started with the selector lever in position P or N.
When position N is selected, press
the brake pedal or apply the parking
brake before starting.
Do not accelerate while engaging a
gear. Never depress the accelerator
pedal and brake pedal at the same
time.
When a gear is engaged, the vehicle
slowly begins to creep when the
brake is released.
Engine braking
To utilise the engine braking effect,
select a lower gear in good time when
driving downhill, see manual mode.
Rocking the vehicle
Rocking the vehicle is only
permissible if the vehicle is stuck in
sand, mud or snow. Move the selector
lever between D and R in a repeat
pattern. Do not race the engine and
avoid sudden acceleration.
Parking
Apply the parking brake and engage
P .Manual mode
Move selector lever out of position D
towards the left in position M.
Tap the selector lever to the front + to
shift to a higher gear.
Tap the selector lever to the rear - to
shift to a lower gear.
If a higher gear is selected when
vehicle speed is too low, or a lower
gear when vehicle speed is too high,
the shift is not executed. This can
cause a message in the Driver
Information Centre.
150Driving and operatingIn manual mode, no automatic
shifting to a higher gear takes place
at high engine revolutions.
Gear shift indication
The symbol R or S with a number
beside it is indicated when
gearshifting is recommended for fuel
saving reasons.
Shift indication appears only in
manual mode.
Electronic driving programmes
● Following a cold start, the operating temperature
programme increases engine
speed to quickly bring the
catalytic converter to the required
temperature.
● Special programmes automatically adapt the shifting
points when driving up inclines or
down hills.
● In snowy or icy conditions or on other slippery surfaces, the
electronic transmission controlenables the driver to select
manually first, second or third
gear for starting off.
Kickdown Pressing down the accelerator pedal
beyond the kickdown detent will lead
to maximum acceleration
independent of selected driving
mode. The transmission shifts to a
lower gear depending on engine
speed.
Fault
In the event of a fault a message is
displayed in the Driver Information
Centre.
Vehicle messages 3 107.
Electronic transmission control
enables only third gear. The
transmission no longer shifts
automatically.
Do not drive faster than 100 km/h.
Have the cause of the fault remedied by a workshop.Interruption of power supply
In the event of an interruption of
power supply, the selector lever
cannot be moved out of the P
position.
If the vehicle battery is discharged,
start the vehicle using jump leads
3 244.
If the vehicle battery is not the cause
of the fault, release the selector lever.
1. Apply the parking brake.
2. Release the selector lever trim from the centre console. Poke
with a finger into the leather socket below the selector lever
and push the trim upwards.
Driving and operating1513. Push down the button and movethe selector lever out of P. Have
the cause of the power supply
interruption remedied by a
workshop.
4. Mount the selector lever trim onto
the centre console and refit.Manual transmission
To engage reverse on 6-speed
transmission, depress the clutch
pedal, pull the ring under the selector
lever and move the selector lever
quite to the left and front.
If the gear does not engage, set the
selector lever to neutral, release the
clutch pedal and depress again. Then
repeat gear selection.
Do not slip the clutch unnecessarily.
When operating, depress the clutch
pedal completely. Do not use the
pedal as a foot rest.
When clutch slip is detected for a specific time, the engine power will be reduced. A warning is displayed in the
Driver Information Centre. Release
the clutch.Caution
It is not advisable to drive with the hand resting on the selector lever.
Gear shift indication 3 97.
Stop-start system 3 139.
152Driving and operatingDrive systems
Drive modes The plug-in hybrid vehicle providesseveral drive modes.
The drive modes can be selected via
the drive mode selector. The selected
drive mode is indicated in the Driver
Information Centre and in the Driver
Info Display. Selecting a drive mode
is only possible if READY is displayed
in the instrument cluster.
Hybrid system active 3 96.
AWD
The all-wheel drive mode improves
the grip of the vehicle. The vehicle is
driven by front and rear axle.
Depending on the driving situation
and the charge level of the high
voltage battery, the vehicle can be
driven 100% electrically.
All-wheel drive 3 152
Sport
This mode combines the power of the combustion engine and the electrical
engine for a dynamic driving style.
Hybrid
Hybrid mode focuses on optimising
the vehicle's fuel consumption.
Combustion engine and electrical
engine operate together or in
alternation depending on driving
conditions and driving style.
Electric
In this mode, the vehicle is driven by
the electric engine only. Electric
mode is the default mode.Electric propulsion is available for
speeds below 135 km/h.
All-wheel drive The all-wheel drive system enhances
driving characteristics and stability,
and helps to achieve the best
possible driveability.
In all-wheel drive mode, the front axle is driven by the combustion engine or
the electrical engine, the rear axle is
driven by a second electrical engine.
Driving and operating153All-wheel drive mode can be
activated using the driving mode
switch. Activation is shown in the
Driver Information Centre and the Info
Display.
Driver Information Centre 3 101
Info Display 3 103
All-wheel drive is available for speeds below 135 km/h.Brakes
The brake system comprises twoindependent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek
the assistance of a workshop before
continuing the journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has
been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator m 3 96.
Antilock brake system Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
When braking in an emergency, the
hazard warning flashers are switched
on automatically depending on the
force of deceleration. They are
switched off automatically the first
time you accelerate.
After starting off, the system performs
a self-test which may be audible.
Control indicator u 3 97.