Driving and operating163
■ The stop-start system is notmanually deactivated
■ the bonnet is fully closed
■ the driver's door is closed or the driver's seat belt is fastened
■ the vehicle battery is sufficiently charged and in good condition
■ the engine is warmed-up
■ the engine coolant temperature is not too high
■ the engine exhaust temperature is not too high, e.g. after driving with
high engine load
■ the ambient temperature is above -5° C
■ the climate control system allows an Autostop
■ the brake vacuum is sufficient
■ the self-cleaning function of the diesel particle filter is not active
■ the vehicle was driven at least at walking speed since the last
Autostop
Otherwise an Autostop will be
inhibited.Certain settings of the climate control
system may inhibit an Autostop. See
" Climate control " chapter for more
details 3 152.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 160.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several battery discharge protection
features are implemented as part of
the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched into a power-
saving mode. The fan speed of the
climate control system is reduced to
save power.
Restart of the engine by the
driver Depress the clutch pedal to restart the
engine.The engine start is indicated by the
needle at the idle speed position in
the tachometer.
If the selector lever is shifted out of
neutral before depressing the clutch
first, control indicator - illuminates
or is shown as a symbol in the Driver Information Centre.
Control indicator - 3 112.
Restart of the engine by the
stop-start system
The selector lever must be in neutral to enable an automatic restart.
If one of the following conditions occurs during an Autostop, the
engine will be restarted automatically
by the stop-start system.
■ The stop-start system is manually deactivated
■ the bonnet is opened
■ the driver's seat belt is unfastened and the driver's door is opened
■ the engine temperature is too low
■ the charge level of the vehicle battery is below a defined level
172Driving and operating
2. Release the selector lever trimfrom the centre console at the
front, fold it upwards and rotate it
to the left.
3. Insert a screwdriver 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 onto
the centre console and refit.Manual transmission
To engage reverse, with the vehicle
stationary wait 3 seconds after
depressing the clutch pedal and then
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 grind the clutch unnecessarily. When operating, depress the clutchpedal completely. Do not use the
pedal as a foot rest.
Driving and operating175
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 3 112.
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 3 123.
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.
180Driving and operating
Do not use the cruise control if it is notadvisable to maintain a constant
speed.
With automatic transmission, only
activate cruise control in automatic
mode.
Control indicator m 3 116.
Switching on Press button m, control indicator m in
instrument cluster illuminates white.
Activation
Accelerate to the desired speed and
turn thumb wheel to SET/-, the
current speed is stored and
maintained. Control indicator m in
instrument cluster illuminates green.
Accelerator pedal can be released.
Vehicle speed can be increased by
depressing the accelerator pedal.
When the accelerator pedal is
released, the previously stored speed is resumed.
Cruise control remains activated
while gearshifting.
Increase speed
With cruise control active, hold thumb wheel turned to RES/+ or briefly turn
to RES/+ repeatedly: speed
increases continuously or in small
increments.
Alternatively accelerate to the desired speed and store by turning to SET/-.
Reduce speed With cruise control active, hold thumb
wheel turned to SET/- or briefly turn to
SET/- repeatedly: speed decreases
continuously or in small increments.Deactivation
Press button y, control indicator m in
instrument cluster illuminates white.
Cruise control is deactivated. Last
used set speed is stored in memory
for later speed resume.
Automatic deactivation: ■ vehicle speed below approx. 30 km/h,
■ vehicle speed above approx. 200 km/h,
■ the brake pedal is depressed,
■ the clutch pedal is depressed for a few seconds,
■ selector lever in N,
■ engine speed in a very low range,
■ the Traction Control system or Electronic Stability Control is
operating.
Resume stored speed Turn thumb wheel to RES/+ at a
speed above 30 km/h. The stored
speed will be obtained.
Driving and operating185
The selected following distance is
indicated by filled distance bars on
the adaptive cruise control page.
Note that the following distance
setting is shared with the sensitivity
setting of forward collision alert.
Example: If setting 3 (far) is selected,
then the driver is warned sooner
before a possible collision, also if
adaptive cruise control is inactive or
switched off.
9 Warning
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
Following distance must be
adjusted or the system switched
off when required by the prevailing
conditions.
Detecting the vehicle ahead
The green illuminated "vehicle
ahead" control indicator A is
displayed in the speedometer when the system detects a vehicle in the
driving path.
If this symbol does not display, or
displays briefly, adaptive cruise
control will not respond to vehicles
ahead.
Deactivation
Adaptive cruise control is deactivated by the driver when:
■ button y is pressed,
■ brake pedal is applied,
■ clutch pedal is depressed for more than four seconds,
■ gear selector lever of automatic transmission is moved to N.
The system is also automatically
deactivated when:
■ vehicle speed slows down below 45 km/h or accelerates above
190 km/h,
■ Traction Control system is operating for more than
20 seconds,
228Vehicle care
Fill with clean water mixed with asuitable quantity of windscreen
washer fluid which contains
antifreeze. For the correct mixing ratio refer to the washer fluid container.Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Brakes
In the event of minimum thickness ofthe brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe MIN and MAX marks.
When topping up, ensure maximum cleanliness as contamination of the
brake fluid can lead to brake system
malfunctions. Have the cause of the
loss of brake fluid remedied by a
workshop.
Only use high-performance brake
fluid approved for the vehicle. Brake
and clutch fluid 3 269.
Vehicle battery
Vehicles without stop-start system
will be equipped with a lead acid
battery. Vehicles with stop-start
system will be equipped with an
AGM battery which is not a lead acid
battery.
The vehicle battery is maintenance-
free, provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the battery. Avoid the use of
unnecessary electrical consumers.
270Service and maintenance
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 273.
Additional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade
depending on the minimum ambient
temperature 3 273.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.Coolant and antifreeze
Only use silicate-free long life coolant
(LLC) antifreeze.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C. In
northern countries with very low
temperatures the factory filled coolant
provides frost protection down to
approx. -37 °C. This concentration
should be maintained all year round.
The use of additional coolant
additives that intend to give additional
corrosion protection or seal against
minor leaks can cause function
problems. Liability for consequences
resulting from the use of additional
coolant additives will be rejected.
Brake and clutch fluid
Only use high-performance brake
fluid approved for the vehicle, consult a workshop.Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified interval.
Brake fluid should be stored in a
sealed container to avoid water
absorption.
Ensure brake fluid does not become
contaminated.
AdBlue Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 166.
292IndexAAccessories and vehicle modifications .......................... 223
Active Emergency Braking .........192
Active head restraints ...................38
Adaptive cruise control .......116, 182
Adaptive forward lighting ..........
................................ 116, 141, 233
AdBlue ........................ 114, 166, 269
Adjustable air vents ...................156
Advanced parking assist ............197
Airbag and belt tensioners .........111
Airbag deactivation ..............57, 111
Airbag system .............................. 55
Air conditioning regular operation ................................ 158
Air conditioning system .............. 151
Air intake .................................... 157
Air vents...................................... 156
Antilock brake system ................ 173
Antilock brake system (ABS) .....113
Anti-theft alarm system ................27
Anti-theft locking system .............. 27
Appearance care ........................264
Armrest ......................................... 44
Armrest storage ........................... 68
Ashtrays ..................................... 103
Automatic anti-dazzle ..................31
Automatic light control ...............139Automatic locking ........................25
Automatic transmission .............169
Auxiliary heater ........................... 156
B
Battery discharge protection ......149
Battery voltage ........................... 127
Bicycle rack .................................. 70
BlueInjection ............................... 166
Bonnet ....................................... 225
Brake and clutch fluid .................269
Brake and clutch system ...........112
Brake assist ............................... 175
Brake fluid .................................. 228
Brakes ............................... 173, 228
Breakdown.................................. 262
Bulb replacement ....................... 231
C
Capacities .................................. 284
Cargo management system ........88
Car Pass ...................................... 21
Catalytic converter .....................166
Central locking system ................23
Centre console lighting ..............148
Centre console storage ...............69
Changing tyre and wheel size ...251
Charging system ........................ 111
Child locks ................................... 25