Page 169 of 327
Driving and operating167Exchanging AdBlueIf less than 5 litres of AdBlue havebeen refilled during the last 2 years,
the remaining fluid should be
exchanged since AdBlue has a
limited durability. Seek the assistance of a workshop.Caution
Disregard could lead to damage to
the selective catalytic reduction
system.
Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Manual shifting is possible in manual
mode by tapping the selector lever or pulling the steering wheel paddles
3 169.
Transmission display
The mode or selected gear is shown
in the transmission display.
In automatic mode, the driving
programme is indicated by D in the
Driver Information Centre.
In manual mode, M and the number
of the selected gear is indicated.
R indicates reverse gear.
N indicates neutral position.
P indicates park position.
Page 170 of 327

168Driving and operatingSelector leverP:park position, press release
button, wheels are locked,
engage only when the vehicle is
stationary and parking brake is
appliedR:reverse gear, press release
button, engage only when
vehicle is stationaryN:neutralD:automatic modeM:manual mode: move selector
lever from D to the left.<:manual mode upshifting: move
selector lever in position M and
tap upwards]:manual mode downshifting:
move selector lever in position
M and tap rearwards
The selector lever is locked in P and
can only be moved when the ignition
is on and the brake pedal is applied.
Without applied brake pedal the
control indicator j illuminates.
If the selector lever is not in P when
the ignition is switched off, control
indicator j and P will flash.
To engage P or R, press the release
button.
The engine can only be started with
lever in position P or N. When position
N is selected, press brake pedal or
apply 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 .
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Driving and operating169The ignition key can only be removed
when the selector lever is in position
P .
Manual mode
Selector lever
Move selector lever out of position D
towards the left to select manual
mode.
Tap selector lever
forwards <:shift to a higher gearbackwards ]:shift to a lower gear
The selected gear is indicated in the
instrument cluster.
Steering wheel paddles
Move selector lever out of position D
towards the left to select manual
mode.
Pull steering wheel paddles to select
gears manually
right
paddle <:pull briefly to shift
one gear upleft
paddle ]:pull briefly to shift one
gear down, multiple
pulls allows gears to be
skipped
The selected gear is indicated in the
instrument cluster.
Temporary manual mode in drive
mode D
Manual paddle shifting is also
possible in automatic mode D. Upon
completion of manual shifting
operation, transmission changes to
automatic mode D after a defined
time.
To interrupt manual mode, do one of
the following:
● Press < paddle for 1 second.
● Move selector lever towards the left to manual mode and back toposition D.
If the vehicle is at a standstill and
engine is idling, the transmission will remain in temporary manual mode. It
changes to automatic mode when
accelerator pedal is operated for a
defined time, and no paddle shifting
at the steering wheel is performed.
General If a higher gear is selected when
vehicle speed is too low, or a lower
gear when vehicle speed is too high,
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170Driving and operatingthe shift is not executed. This can
cause a message in the Driver
Information Centre.
In manual mode, no automatic
shifting to a higher gear takes place
at high engine revolutions.
Gear shift indication
The symbol R with a number below 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.
● The automatic neutral shift function automatically shifts to
idling when the vehicle is stopped with a forward gear engaged andthe brake pedal is pressed.● When SPORT mode is engaged,
the vehicle shifts at higher engine speeds (unless cruise control is
on). SPORT mode 3 177.
● Special programmes automatically adapt the shifting
points when driving up inclines or
down hills.
● When starting off in snowy or icy conditions or on other slippery
surfaces, the electronic
transmission control selects a
higher gear automatically.
Kickdown If the accelerator pedal is pressed
down completely in automatic mode,
the transmission shifts to a lower gear
depending on engine speed.
Overheat protection
In the event of transmission-
overheating due to high outside
temperatures or sporty driving style,
the torque and the maximum speed of the engine can be temporarily
reduced.Fault
In the event of a fault a vehicle
message is displayed in the Driver
Information Centre. Vehicle
messages 3 119.
The transmission no longer shifts automatically. Continued travel is
possible with manual shifting.
Only the highest gear is available.
Depending on the fault, 2nd gear may also be available in manual mode.
Shift only when vehicle is stationary.
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. The ignition key cannot be
removed from the ignition switch.
If the vehicle battery is discharged,
start the vehicle using jump leads
3 265.
If the vehicle battery is not the cause
of the fault, release the selector lever.
1. Apply parking brake.
Page 173 of 327
Driving and operating171
2. Release selector lever trim fromcentre console at rear, fold
upwards and rotate to the left.
3. Insert the special tool into the opening as far as it will go and
move the selector lever out of P or
N . If P or N is engaged again, the
selector lever will be locked in
position again. Have the cause of
the power supply interruption
remedied by a workshop.
4. Mount the selector lever trim on the centre console and refit.Manual transmission
To engage reverse, with the vehicle
stationary press the release button on the selector lever and engage the
gear.
If the gear does not engage, set the
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.
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172Driving and operatingCaution
It is not advisable to drive with thehand resting on the selector lever.
Gear shift indication 3 106.
Stop-start system 3 159.
Drive systems
All-wheel drive
The All-wheel drive system enhances
driving characteristics and stability,
and helps to achieve the best
possible driveability regardless of
ground surface. The system is always
active and cannot be deactivated.
The torque is distributed steplessly
between the wheels of the front and rear axle, depending on the driving
conditions. Additionally the torque
between the rear wheels is distributed
depending on the surface.
For optimum system performance,
the vehicle's tyres should not have
varying degrees of wear.
If a service message is displayed in
the Driver Information Centre, the
system may have limited functionality (or be completely disabled in some
cases, i.e. the vehicle switches to
Front-wheel drive). Seek the
assistance of a workshop.
Towing the vehicle 3 266.Brakes
The brake system comprises two
independent 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 beforecontinuing 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 R 3 105.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.
Page 175 of 327

Driving and operating173ABS 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.
After starting off, the system performs a self-test which may be audible.
Control indicator u 3 106.
Adaptive brake light During full braking, all three brake
lights flash for the duration of ABS
control.
Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
Have the cause of the fault remedied
by a workshop.
Parking brake
Manual parking brake9 Warning
Always apply parking brake firmly
without operating the release
button, and apply as firmly as
possible on a downhill or uphill
slope.
To release the parking brake, pull
the lever up slightly, press the
release button and fully lower the
lever.
Page 176 of 327

174Driving and operatingTo reduce the operating forces ofthe parking brake, depress the
foot brake at the same time.
Control indicator R 3 105.
Electric parking brake
Applying when vehicle is stationary
9 Warning
Pull switch m for a minimum of
one second until control indicator
m illuminates constantly and
electric parking brake is applied
3 105. The electric parking brake
operates automatically with
adequate force.
Before leaving the vehicle, check
the electric parking brake status.
Control indicator m 3 105.
The electric parking brake can always
be activated, even if the ignition is off.
Do not operate electric parking brake
system too often without engine
running as this will discharge the vehicle battery.
Releasing
Switch on ignition. Keep foot brake
pedal depressed and then push
switch m.
Drive away function
Depressing clutch pedal (manual
transmission) or engaging drive gear
(automatic transmission) and then
depressing the accelerator pedal
releases the electric parking brake
automatically. This is not possible
when the switch is pulled at the same
time.
This function also helps driving away
on inclines.
Aggressive drive away may reduce life time of wear parts.
Dynamic braking when vehicle is
moving
When the vehicle is moving and the
switch m is kept pulled, the electric
parking brake system will decelerate
the vehicle, but will not apply
statically.
As soon as the switch m is released,
dynamic braking will be stopped.
Automatic applying
If the vehicle is equipped with
Automatic transmission and Adaptive
cruise control is active, electric
parking brake is applied automatically when vehicle is stopped by the
system for more than 2 minutes.
Parking brake releases automatically
after moving off.