Instruments and controls109Diagnostic report
The vehicle automatically transmits
diagnostic data to OnStar which
sends a monthly email report to you
and your preferred workshop.
Notice
The workshop notification function
can be disabled in your account.
The report contains the status of key
operating systems of the vehicle like
engine, transmission, airbags, ABS,
and other major systems. It also
provides information on possible
maintenance items and tyre pressure
(only with tyre pressure monitoring
system).
To look at the information in greater
detail, select the link within the email and log in to your account.
Destination download
A desired destination can be directly
downloaded to the navigation system.
Press Z to call an advisor and
describe the destination or point of
interest.The advisor can look up any address
or point of interest and directly send
the destination to the built-in
navigation system.
OnStar settings
OnStar PIN
To have full access to all OnStar
services, a four-digit PIN is required.
The PIN has to be personalised when
first talking to an advisor.
To change the PIN, press Z to call an
advisor.
Account data
An OnStar subscriber has an account
where all the data is stored. To
request a change of the account
information, press Z and talk to an
advisor or log in to your account.
If the OnStar service is used on
another vehicle, press Z and request
that the account be transferred to the
new vehicle.Notice
In any case, if the vehicle is disposed of, sold or otherwise transferred,
immediately inform OnStar about
the changes and terminate the
OnStar service on this vehicle.
Vehicle location
The vehicle location is transmitted to OnStar when service is requested ortriggered. A message on the Info-
Display informs about this
transmission.
To activate or deactivate the
transmission of the vehicle location,
press and hold j until an audio
message is heard.
The deactivation is indicated by the
status light flashing red and green for
a short period of time and each time
the vehicle is started.
Notice
If the transmission of the vehicle
location is deactivated, some
services are no longer available.
124Climate controlClimate controlClimate control systems.............124
Heating and ventilation system 124
Air conditioning system ...........125
Electronic climate control system .................................... 127
Auxiliary heater ........................131
Air vents ..................................... 132
Adjustable air vents .................132
Fixed air vents ......................... 132
Maintenance .............................. 132
Air intake ................................. 132
Pollen filter ............................... 132
Air conditioning regular
operation ................................ 133
Service .................................... 133Climate control systems
Heating and ventilation system
Controls for: ● temperature
● air distribution
● fan speed
● demisting and defrosting
Heated rear window Ü 3 34.
Temperature
red:warmblue:coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributions:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
All combinations are possible.
Fan speed
Adjust the air flow by switching the fan to the desired speed.
Climate control133Air 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 the
outside temperature is too low.
Service For optimal cooling performance, it is
recommended to annually check the
climate control system, starting
three 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
Notice
Refrigerant R-134a contains
fluorinated greenhouse gases.
Driving and operating137Before restarting or to switch off the
engine, turn the key back to position
0 .
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Starting the vehicle at low
temperatures
Starting the engine without additional heaters is possible down to -25 °С for
diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct
fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission needs a
warming phase of approx. 5 minutes.
The selector lever must be in position
P .
Automatic Starter Control
This function controls the engine
starting procedure. The driver does
not have to hold the key in position 3.
Once applied, the system will go on starting automatically until the engineis running. Because of the checking
procedure, the engine starts running
after a short delay.
Possible reasons for a non-starting
engine:
● Clutch pedal not operated (manual transmission).
● Brake pedal not operated or selector lever not in P or N
(automatic transmission).
● Timeout occurred.
Turbo engine warm-up
Upon start-up, engine available
torque may be limited for a short time, especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully
protect the engine.
Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but accelerator pedal is released.
Depending on driving conditions, the
overrun cut-off may be deactivated.Stop-start system
The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam. It starts the engine
automatically as soon as the clutch is depressed. A vehicle battery sensor
ensures that an Autostop is only
performed if the vehicle battery is
sufficiently charged for a restart.
Activation The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.
206Vehicle care
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox, then
open the cover and fold it down.
No.Circuit1Displays2Body control unit, exterior lights3Body control unit, exterior lights4Infotainment system5Infotainment system, instru‐
ment6Power outlet, cigarette lighter7Power outlet8Body control module, left low
beam9Body control module, right low
beam10Body control module, door locks11Interior fan12Driver power seat13Passenger power seat14Diagnostic connector15Airbag16Boot lid relayNo.Circuit17Air conditioning system18Service diagnose19Body control module, brake
lights, tail lights, interior lights20-21Instrument panel22Ignition system23Body control module24Body control module25–26Trunk power outlet accessory
Load compartment fuse box
The fuse box is on the left side of the
load compartment behind a cover.
Vehicle care211System status and pressure warnings
are displayed by a message
indicating the corresponding tyre in
the Driver Information Centre.
The system considers the tyre
temperature for the warnings.
Temperature dependency 3 213.
A detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 91.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 246.
If
w flashes for 60-90 seconds then
illuminates continuously, there is a
fault in the system. Consult a
workshop.
After inflating, driving may be
required to update the tyre pressure
values in the Driver Information
Centre. During this time w may
illuminate.
If w illuminates at lower temperatures
and extinguishes after driving, this
could be an indicator for approaching a low tyre pressure condition. Check
tyre pressure.
Vehicle messages 3 100.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
will not be displayed and w
illuminates continuously.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. The tyre pressure
monitoring system is not operational
for these tyres. Control indicator willuminates. For the further three
wheels the system remains
operational.
The use of commercially-available liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
Operating electronic devices or being
close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, tyre pressure sensors must be
dismounted and serviced. For the
screwed sensor: replace valve core
and sealing ring. For clipped sensor:
replace complete valve stem.
Vehicle loading status
Adjust tyre pressure to load condition according to the tyre information labelor tyre pressure chart 3 246, and
select the appropriate setting in the
Tyre load menu in the Driver
Information Centre 3 93. This setting
is the reference for the tyre pressure
warnings.
212Vehicle careThe menu Tyre Load only appears if
the vehicle is at a standstill and the parking brake is applied. On vehicles
with automatic transmission, the
selector lever must be in P.
Select:
● Light for comfort pressure up to
3 people
● Eco for Eco pressure up to
3 people
● Max for full loading
Tyre pressure sensor matching
process
Each tyre pressure sensor has a
unique identification code. The
identification code must be matched
to a new wheel position after rotating the wheels or exchanging the
complete wheel set and if one or more tyre pressure sensors were replaced.The tyre pressure sensor matching
process should also be performed
after replacing a spare wheel with a
road wheel containing a tyre pressure
sensor.
The malfunction light w and the
warning message or code should
extinguish at the next ignition cycle.
The sensors are matched to the
wheel positions using a relearn tool,
in the following order: left side front
wheel, right side front wheel, right
side rear wheel and left side rear
wheel. The turn signal light at the
current active position is illuminated
until the sensor is matched.
Consult your workshop for service.
There are two minutes to match the
first wheel position, and five minutes
overall to match all four wheelpositions. If it takes longer, the
matching process stops and must be
restarted.
The tyre pressure sensor matching process is as follows:
1. Apply the parking brake.
2. Turn the ignition on.
3. On vehicles with automatic transmission: set the selector
lever to P.
On vehicles with manual
transmission: select neutral.
4. Use MENU on the turn signal
lever to select the Vehicle
Information Menu in the Driver
Information Centre.
5. Turn the adjuster wheel to scroll to
the tyre pressure menu.
6. Press SET/CLR to begin the
sensor matching process. A
message requesting acceptance
of the process should be
displayed.
7. Press SET/CLR again to confirm
the selection. The horn sounds
twice to indicate that the receiver
is in relearn mode.
232Service and maintenanceService and
maintenanceGeneral information ...................232
Service information ..................232
Recommended fluids, lubricants
and parts .................................... 233
Recommended fluids and lubricants ................................ 233General 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 your vehicle is available
at the workshop.
Service display 3 85.
European service intervals
Maintenance of your vehicle is
required every 20,000 miles or after
1 year , whichever occurs first, unless
otherwise indicated in the service
display.
A shorter service interval can be valid
for severe driving behaviour, e.g. for
taxis and police vehicles.
The European service intervals are
valid for the following countries:Andorra, Austria, Belgium, Bosnia-
Herzegovina, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany,
Greece, Greenland, Hungary,
Iceland, Ireland, Italy, Latvia,
Liechtenstein, Lithuania,
Luxembourg, Macedonia, Malta,
Monaco, Montenegro, Netherlands,
Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia,
Slovenia, Spain, Sweden,
Switzerland, United Kingdom.
Service display 3 85.
International service intervals Maintenance of your vehicle is
required every 10,000 miles or after
1 year , whichever occurs first, unless
otherwise indicated in the service
display.
Severe operating conditions exist if
one or more of the following
circumstances occur frequently: Cold starting, stop and go operation, trailer
operation, mountain driving, driving
on poor and sandy road surfaces,
increased air pollution, presence of
airborne sand and high dust content,