162Driving and operating
■ the brake vacuum is not sufficient
■ the vehicle is driven at least at walking speed
■ the climate control system requests
an engine start
■ the air conditioning is manually switched on
If the bonnet is not fully closed, a
warning message is displayed in the
Driver Information Centre.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during engine restart may be
noticeable.
Parking ■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply parking brake. Apply manual parking brake without
pressing release button. Apply as
firmly as possible on downhill or uphill slopes. Depress the footbrake at the same time to reduce
operating force.
Apply electric parking brake by pulling switch m for approx.
one second. Control indicator m
must illuminate.
■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or
uphill slope, engage first gear or set the selector lever to P before
switching off the ignition. On an
uphill slope, turn the front wheels
away from the kerb.
If the vehicle is on a downhill slope, engage reverse gear or set theselector lever to P before switching
off the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle and activate the anti-theft alarm system.Notice
In the event of an accident with
airbag deployment, the engine is
turned off automatically if the vehicle
comes to a standstill within a certain time.
Driving and operating165
If the AdBlue level falls below a
certain value, a level warning Exhaust
Fluid Range: 1500 mi will be
displayed in the Driver Information Centre (DIC).
A volume of at least 5 litres of AdBlue must be refilled soon.
Driving is possible without any
restrictions.
If AdBlue is not refilled within a certain
distance, further level warnings are
displayed in the DIC depending on
the current AdBlue level. The
warnings announce restrictions,
starting with limitations of the
maximum speed up to a prevention of an engine restart. The restrictions are
a legal requirement.
Before a limitation of the maximum
speed is activated with the next
restart, the warning messages
■ Exhaust Fluid Empty Refill Now
■ Max Speed Upon Restart 60 mph
are alternately displayed in the DIC.
Additionally the control indicator Y
illuminates continuously and a
warning chime sounds.
A speed limitation to 60 mph will be
activated with approx. 560 miles
exhaust fluid range remaining.
After a further limitation of the
maximum speed to 30 mph, a
prevention of the engine restart will be
announced.
Before the prevention of the engine
restart is activated, the warning
messages
■ Exhaust Fluid Empty Refill Now
■ Speed Limited to 30 mph
■ Engine Will Not Restart
are alternately displayed in the DIC.
Driving and operating167
8. Unscrew the hose from the fillerneck.
9. Mount the protective cap and turn
clockwise until it engages.
Notice
Dispose AdBlue canister and hose
according to environmental
requirements.
After restart, let the engine run in
neutral for approx. 10 seconds before
starting-off.
Exchanging AdBlue
Have AdBlue in the tank exchanged
completely after two years at the latest when driving mainly in warm
areas and with low mileage.Caution
Disregard could lead to damage to
the engine.
Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Transmission display
The mode or selected gear is shown
in the transmission display.
Selector leverP=park position, 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 mode with all gears
The selector lever is locked in P and
can only be moved when the ignition
is on and the brake pedal is applied.
168Driving and operating
Without brake pedal applied, the
control indicator j illuminates.
If the selector lever is not in P when
the ignition is switched off, the control
indicators j and P flash.
To engage P or R, press the release
button.
The engine can only be started with the 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 .
The ignition key can only be removed
when the selector lever is in position
P .Manual mode
Move selector lever out of position D
towards the left and then forwards or backwards.
<=Shift to a higher gear.]=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-Info-Display.
Driving and operating169
In manual mode no automatic shiftingto a higher gear takes place at high
engine revolutions.
Electronic driving
programmes ■ Following a cold start, the operating
temperature programme increasesengine speed to quickly bring the
catalytic converter to the required
temperature.
■ The automatic neutral shift function
automatically shifts gear to idling
when the vehicle is stopped with a
forward gear engaged and the
brake pedal is pressed.
■ When SPORT mode is engaged, the vehicle shifts at higher engine
speeds (unless cruise control is
on). SPORT mode 3 175.■ Special programmes automatically
adapt the gearshift 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.
Fault In the event of a fault, g illuminates.
Additionally a code number or a
vehicle message is displayed in the
Driver Information Centre. Vehicle
messages 3 121.
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 at a
standstill.
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
3 259.
If the vehicle battery is not the cause
of the fault, release the selector lever.
1. Apply the parking brake.
Driving and operating173
Do not operate electric parking brake
system too often with engine not
running, as this will discharge the
vehicle battery.
Before leaving the vehicle, check the electric parking brake status. Control
indicator m 3 110.
Releasing
Switch on ignition. Keep brake pedal
depressed and then press 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
lifetime 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.
Fault
Failure mode of electric parking brake
is indicated by control indicator j and
by a code number or a vehicle
message which is displayed in the
Driver Information Centre (DIC).
Vehicle messages 3 121.
Apply electric parking brake: pull and hold switch m for more than
5 seconds. If control indicator m
illuminates, electric parking brake is
applied.
Release electric parking brake: press and hold switch m for more than
2 seconds. If control indicator m
extinguishes, electric parking brake is
released.Control indicator m flashes: electric
parking brake is not fully applied or
released. When continuously
flashing, release electric parking
brake and retry applying.
Brake assist If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the brake pedal for as long as full braking
is required. Maximum brake force is
automatically reduced when the
brake pedal is released.
Hill start assist The system helps prevent unintendedmovement when driving away on
inclines.
When releasing the foot brake after
stopping on an incline, the brakes
remain on for a further two seconds.
The brakes release automatically as
soon as the vehicle begins to
accelerate.
Driving and operating177
changes the settings within the
selected driving mode or, when
recognising greater variations, the
driving mode is changed for the
length of variation.
If, for example, Normal mode is
selected and DMC detects a sporty
driving behaviour, DMC changes
several settings of the Normal mode
into sporty settings. The DMC
changes to SPORT mode in case of
very sporty driving behaviour.
If, for example, TOUR mode is
selected and whilst driving on a
winding road a sudden hard brake is
necessary, DMC will detect the
dynamic vehicle condition and
changes the settings for suspension
to SPORT mode to increase vehicle
stability.
When the driving characteristic or the
dynamic vehicle state returns to
former state, DMC will change the
settings to the preselected driving
mode.Personalised settings in the
Sport mode The driver can select the functions of
the SPORT mode when SPORT
button is pressed. These settings can
be changed in the menu Settings in
the Info-Display. Vehicle
personalisation 3 128.Driver assistance
systems9 Warning
Driver assistance systems are
developed to support the driver
and not to replace his attention.
The driver accepts full
responsibility when driving the
vehicle.
When using driver assistance
systems, always take care
regarding the current traffic
situation.
Cruise control
The cruise control can store and
maintain speeds of approx. 20 to
120 mph. Deviations from the stored
speeds may occur when driving uphill or downhill.
For safety reasons, the cruise control cannot be activated until the foot
brake has been operated once.
Activation in first gear is not possible.
Driving and operating179
Switching off
Press button m, control indicator m in
instrument cluster extinguishes. The
stored speed is deleted.
Pressing button L for activating
speed limiter or switching off the
ignition also switches off cruise
control and deletes the stored speed.
Speed limiterThe speed limiter prevents the
vehicle exceeding a preset maximum
speed.
The maximum speed can be set at a
speed above 15 mph.
The driver can only accelerate up to
the preset speed. Deviations from the
limited speed may occur when driving downhill.
The preset speed limit is displayed in
the top line of the Driver Information
Centre when the system is active.Activation
Press button L. If cruise control or
adaptive cruise control has been
activated before, it is switched off
when speed limiter is activated and
the control indicator m extinguishes.
Set speed limit
With speed limiter active, hold thumb
wheel turned to RES/+ or briefly turn
to RES/+ repeatedly until the desired
maximum speed is displayed in the
Driver Information Centre.
Alternatively accelerate to the desired speed and briefly turn thumb wheel to SET/- : the current speed is stored as
maximum speed. Speed limit is
displayed in the Driver Information
Centre.
Change speed limit
With speed limiter active, turn thumb
wheel to RES/+ to increase or SET/-
to decrease the desired maximum
speed.
Exceeding the speed limit
In the event of an emergency it is possible to exceed the speed limit by
depressing the accelerator pedal
firmly beyond the point of resistance.