
Instruments and controls109● There is a fault with the powerdoor lock system  3 30.
● If the vehicle has manual transmission automated  3 155,
the parking brake has not been
applied, neutral is not selected or the brake pedal has not been
depressed. A corresponding
message may also appear in the
Driver Information Centre  3 106.
● If the sliding side door exterior handle is in the open position
when unlocking the vehicle  3 32.
● If the parking brake is not applied
when the power sliding door
switch is pressed  3 32.
● If the power sliding door is locked
from the inside with the child lock active  3 32.
● If the engine is in an Autostop but
not switched off. Stop-start
system  3 140.Trip computer
The trip computer provides
information on driving data, which is
continually recorded and evaluated
electronically.
Depending on vehicle, the following
functions can be selected by pressing button repeatedly on end of wiper
lever:
● fuel used
● average consumption
● instantaneous consumption
● range
● distance travelled
● average speed
● distance before service  3 96
● clock  3 91
● cruise control  3 164
● speed limiter  3 166
● fault and information messages
● odometer  3 94
● trip odometer  3 94
Fuel used
Displays the amount of fuel
consumed since the last reset.
The measurement can be restarted at
any time by pressing and holding the
button on the end of the wiper lever.
Average consumption The value is displayed after driving a
distance of 400 m.
Average consumption is displayed,
taking into consideration the distance
travelled and the fuel used since the
last reset.
The measurement can be restarted at
any time. 

120Climate controlClimate controlClimate control systems.............120
Heating and ventilation system 120
Air conditioning system ...........121
Electronic climate control system .................................... 122
Rear heating system ...............124
Rear air conditioning system ...126
Auxiliary heater ........................127
Air vents ..................................... 133
Adjustable air vents .................133
Fixed air vents ......................... 134
Glovebox cooler ......................134
Maintenance .............................. 134
Air intake ................................. 134
Air conditioning regular operation ................................ 134
Service .................................... 134Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
● demisting and defrosting
Heated rear window  Ü 3  45.
Heated seats  ß 3  54.
Temperaturered:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed
Adjust the air flow by switching the fan to the desired speed.
Air distribution
M:to head areaL:to head area and foot wellK:to foot wellJ:to windscreen, front door
windows and foot wellV:to windscreen and front door
windows
Intermediate settings are possible.
Demisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest level. 

134Climate controlBus
Adjustable air vents may be located inthe roof frame above the seats. Turn
adjuster to increase / decrease
airflow to the appropriate seat.
Fixed air vents
Additional air vents are located
beneath the windscreen and door
windows and in the foot wells.
Glovebox cooler The air conditioning system can alsokeep the contents of the glovebox
cool.
Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Air conditioning regular
operation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when outside
temperature is too low.
ServiceFor optimal cooling performance, it is
recommended to annually check the
climate control system, starting
3 years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check 

144Driving and operating● Close the windows.
● Turn the ignition key to position
0  and remove it. Turn the
steering wheel until the
steering wheel lock is felt to
engage.
Lock the vehicle  3 26  and activate the
anti-theft locking system  3 37 and
anti-theft alarm system  3 38.
Air suspension
Operates automatically when the
vehicle is driven. The air suspension
system constantly adjusts the ride
height according to the vehicle load.
Caution
To ensure safe operation of the air
suspension system, do not exceed the maximum permissible gross
vehicle weight rating. Refer to
identification plate  3 231 or the
vehicle documents.
For further information on the air
suspension system, refer to the
operating instructions supplied.
Master switchCaution
The air suspension system must
be switched off when the vehicle is being towed, jump‐started, raised
off the ground or transported.
Do not switch off the air
suspension system when driving.
Jump starting  3 219.
Towing the vehicle  3 221.
The master switch is located on the
lower part of the right-hand door pillar,
behind a trim panel.
Switch on to enable operation and
adjustment of the air suspension
system.
Switch off to put the vehicle into
service mode.
Remote control
When increased ground clearance or improved vehicle access is required,
the suspension can be raised or
lowered using the remote control. 

Driving and operating145Caution
Ensure there is adequate
clearance and that there are no
obstructions when adjusting the
suspension height.
The remote control unit is magnetic
and may be fixed to any metal part of the vehicle or stored in its holder.
With the engine running, press the appropriate button for two seconds to
adjust the suspension height.
Indicator light will flash intermittently
while height adjustment is in progress
and illuminates when complete.
If the ignition is switched on with
engine not running, the suspension
height can only be lowered.
Note
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Pre-programmed settings
Adjusts the suspension height to one
of three pre-programmed positions.
l:lowered positionk:normal positionj:raised positionCaution
If an obstacle is detected while
raising or lowering, the
suspension height is returned to the normal position after a delay.
This does not guarantee damage- free operation. Ensuring sufficient
clearance and freedom from
obstacles is the responsibility of the driver.
Manual settings
Manual adjustment can only be
performed when the vehicle is
stationary.
Select by pressing  h for 2 seconds,
then  R to raise, or  S to lower.
To exit, press any of the pre-
programmed buttons.
Note
Obstacle detection is not available
during manual adjustment.
When a certain low speed is
exceeded or when the ignition is
switched off, height adjustment is deactivated automatically and the
suspension height is returned to the
normal position.
Service mode
When the vehicle is stationary, press
i  for 5 seconds to put the vehicle into
service mode. The indicator light will
illuminate.
When service mode has been
activated, the air suspension master
switch must be turned off.
To exit service mode, press  i again
for 5 seconds.
Fault
If a fault is detected,  i will flash
intermittently. If service mode has been activated and there is a fault,  h,
S  and  R will flash simultaneously.
Have the cause of the fault remedied
by a workshop. 

Driving and operating169Conditions for re-activation
The Active emergency brake system
can only be re-activated if:
● the gear lever is not in neutral
● parking brake is not activated
● vehicle is not cornering
System limitations In some cases, the active emergencybraking system may provide an
automatic braking in situations that
seem to be unnecessary, for instance
in parking garages, due to traffic signs
in a curve or due to vehicles in
another lane. This is normal
operation, the vehicle does not need
service. Firmly apply the accelerator
pedal to override the automatic
braking if the situation and the
surroundings permit.
In the following cases, active
emergency braking performance is
limited:
● driving on winding or hilly roads
● detecting all vehicles, especially vehicles with a trailer, tractors,
muddy vehicles, etc.● detecting a vehicle when weather
limits visibility, such as in fog,
rain, or snow
● driving during nighttime
● sensor in the windscreen or radar
unit behind the front bumper
blocked by snow, ice, slush, mud, dirt, etc.
● windscreen damaged or affected
by foreign objects, e.g. stickers
Complete attention is always required
while driving, and you should be
ready to take action and apply the
brakes and / or steer the vehicle to
avoid crashes.
Fault
In case the system requires a service,
a message is displayed in the Driver
Information Centre.
Additionally, warning lights  l and  j
illuminate at the same time.
When the system detects that its
function is not available, warning
lights  l or  j illuminates and stays
on. Additionally, a message in the
Driver Information Centre appear.
The system may be temporarilydisrupted (for example: radar or
camera obscured by dirt, mud, snow
etc.). In this case,park the vehicle and switch off the engine. Clean the
windscreen area around the camera
and the detection zone of the radar in the front bumper. When the warning
lights and messages still appear after
starting the vehicle again, seek the
assistance of a workshop.
Parking assist9 Warning
It is the driver who bears full
responsibility for the parking
manoeuvre.
Always check the surrounding
area while reversing and using the rear parking assist system.
The parking assist measures the
distance between the vehicle and
obstacles behind the vehicle. It
informs and warns the driver by giving acoustic signals. 

Vehicle care209After a puncture has been repaired
and the driver has inflated the tyres to
the correct tyre pressure, the tyre
pressure monitoring system needs to
recalculate.
Tyre pressure  3 252.
Tyre repair kit  3 211.
During driving, select the tyre
pressure menu in the Driver
Information Centre by pressing button on end of wiper lever. Press and holdbutton for approx. five seconds to
initialise recalculation. A
corresponding message appears in
the Driver Information Centre.
Several minutes of driving at a speed
above 40 km/h may be required to
complete the relearn process. The system can only provide limited
information during this time.
If problems occur during the relearn
process, control indicator  w remains
illuminated and a warning message is displayed in the Driver Information
Centre.
Driver Information Centre  3 106.
Vehicle messages  3 107.General information
The use of tyre chains or
commercially available liquid tyre
repair kits can impair the function of
the system. Factory-approved tyre
repair kits can be used.
Tyre repair kit  3 211.
Tyre chains  3 210.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
Each time the tyres are replaced, the
tyre pressure monitoring system
sensors must be dismounted and
serviced by a workshop.
Tread depth Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2–3 mm
(4 mm for winter tyres).
For safety reasons it is recommended
that the tread depth of the tyres on
one axle should not vary by more than 2 mm.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear
indicators (TWI). Their position is
indicated by markings on the
sidewall.
Tyres age, even if they are not used.
We recommend tyre replacement
every 6 years. 

226Service and maintenanceService and
maintenanceGeneral information ...................226
Service information ..................226
Recommended fluids, lubricants
and parts .................................... 228
Recommended fluids and lubricants ................................ 228General information
Service information In order to ensure economical and
safe vehicle operation and to
maintain the value of your vehicle, it
is of vital importance that all
maintenance work is carried out at the proper intervals as specified.
The detailed, up-to-date service
schedule for the vehicle is available at
the workshop.
Service display  3 96.
Engine identification  3 231.
European service intervals -
except Bus
Maintenance of your vehicle is
required every 40,000 km or after
two years, whichever occurs first, unless otherwise indicated by the
service display.
A shorter service interval can be valid for severe driving behaviour, e.g. for
taxis and police vehicles.European service intervals - Bus
only
Maintenance of your vehicle is
required every 30,000 km or after
one year, whichever occurs first, unless otherwise indicated by the
service display.
The European service intervals are
valid for the following countries:
Andorra, Austria, Belgium, Croatia,
Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy,
Latvia, Liechtenstein, Lithuania,
Luxembourg, Netherlands, Norway,
Poland, Portugal, Slovakia, Slovenia,
Spain, Sweden, Switzerland, United
Kingdom.