Page 121 of 233

Climate control119
the freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
When the cooling system is switched
off, no engine restart will be
requested by the climate control
system during an Autostop.
Exception: defrost system is activated
and outside temperature above 0° C requests a restart.
The status of cooling operation is
indicated in the Info-Display.
Activation or deactivation of cooling
operation after engine start can be
changed in the Info-Display. Vehicle
personalisation 3 100.Air recirculation mode 4
Press button
4 to activate air
recirculation mode. Activation is
indicated by the LED in the button.
Press button 4 again to deactivate
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen might mist up from outside, when cold air is
directed to it. If windscreen mists up
from outside, activate windscreen
wiper and deactivate s.
Basic settings Some settings can be changed in the
Info-Display. Vehicle personalisation
3 100.
Page 123 of 233
Climate control121Air 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
Page 128 of 233

126Driving and operating
a power saving mode. The fan speedof the climate control system is
reduced to save power.
Restart of the engine by the
driverVehicles with manual transmission:
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 87.Vehicles with manual transmission
automated:
Release the brake pedal or move
selector lever out of D to restart the
engine.
The engine start is indicated by the
needle at the idle speed position in
the tachometer.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 charging level of the vehicle battery is below a defined level.
■ 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 restart might be noticeable.
Parking9 Warning
■ Do not park the vehicle on an
easily ignitable surface. The
high temperature of the exhaust
system could ignite the surface.
■ Always apply the parking brake.
Activate the parking brake
without pressing the release
button. Apply as firmly as
possible on a downhill slope or
uphill slope. Depress foot brake
at the same time to reduce
operating force.
■ Switch off the engine.
■ If the vehicle is on a level surface or uphill slope, engage
first gear before removing the ignition key. On an uphill slope,
Page 180 of 233
178Vehicle care
No.Circuit1–2–3Power windows4Voltage transformer5Body control module 16Body control module 27Body control module 38Body control module 49Body control module 510Body control module 611Body control module 712Body control module 813–14Tailgate15Diagnostic connector16Data link connection17IgnitionNo.Circuit18Air conditioning system19Audio amplifier20Parking assist21Brake switch22Audio system23Display24–25Onstar26Instrument panel27Seat heating, driver28–29–30Instrument panel31Horn32Seat heating, passenger33Heated steering wheel34–
Page 184 of 233

182Vehicle care
Tyre pressure 3 221.
The tyre pressure information label on the right door frame indicates theoriginal equipment tyres and the
correspondent tyre pressures.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and fuel economy and will increase tyre
wear.
The tyre pressure tables show all
possible tyre combinations 3 221.
Identify the respective tyre.
For the tyres approved for your
vehicle, refer to the EEC Certificate of Conformity provided with your vehicle
or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
If the tyre pressure must be reduced
or increased, switch off ignition. After
adjusting tyre pressure switch on
ignition and select the relevant setting
on the page Tyre load in the Driver
Information Centre 3 90.
Tyre pressure monitoring
system The tyre pressure monitoring system
(TPMS) checks the pressure of all
four tyres once a minute when vehicle speed exceeds a certain limit.
Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
The current tyre pressures can be
shown in the Vehicle Information
Menu in the Driver Information
Centre.
The menu can be selected by
pressing the buttons on the turn
signal lever.
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184Vehicle care
illuminates. For the further three
tyres, 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.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
Each time the tyres are replaced, tyre pressure monitoring system sensors
must be dismounted and serviced.
For the screwed sensor; replace
valve core and sealing ring. For the
clipped sensor; replace complete
valve stem.
Vehicle loading status Adjust tyre pressure to load condition according to the tyre information labelor tyre pressure chart 3 221, and
select the appropriate setting in the
menu Tire Load in the Driver
Information Centre (DIC), Vehicle
Information Menu 3 90.
Select:
■ Light for comfort pressure up to
3 people.
■ Eco for Eco pressure up to
3 people.
■ Max for full loading.
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code must be matched to a new tyre/ wheel position after rotating the tyres
or exchanging the complete wheel set
and if one or more TPMS sensors
were replaced. The TPMS sensor
matching process should also be
performed after replacing a spare tyre with a road tyre containing the TPMS
sensor.
The malfunction light w and the
warning message or code should go off at the next ignition cycle. The
sensors are matched to the wheel
positions, using a TPMS 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 sensor is matched.
Consult your workshop for service or
to purchase a relearn tool. There are
2 minutes to match the first wheel
position, and 5 minutes overall to
match all four wheel positions. If it
takes longer, the matching process
stops and must be restarted.
The TPMS sensor matching process
is:
1. Apply the parking brake.
2. Turn the ignition on.
Page 220 of 233
218Technical dataVehicle weight
Kerb weight, basic model without any optional equipmentEngineManual transmissionManual transmission automatedwithout/with air conditioning
[kg]B10XFL1141/1156–B10XFT1141/1156–A12XEL1086/1101–A14XEL1120/1135–B14XEL1120/11351120/1135B14XEL
LPG1163/1178–A14XER1120/1135–B14NEH1163/1178–
Optional equipment and accessories increase the kerb weight.
Loading information 3 70.
Page 225 of 233

Customer information223Vehicle data recording
and privacy
Event data recorders
Data storage modules in the vehicle A large number of electronic
components of your vehicle contain
data storage modules temporarily or
permanently storing technical data
about the condition of the vehicle,
events and errors. In general, this
technical information documents the
condition of parts, modules, systems
or the environment:
■ operating conditions of system components (e.g. filling levels)
■ status messages of the vehicle and
its single components ( e.g. number
of wheel revolutions / rotational
speed, deceleration, lateral
acceleration)
■ dysfunctions and defects in important system components■ vehicle reactions in particular driving situations (e.g. inflation of
an airbag, activation of the stability
regulation system)
■ environmental conditions (e.g. temperature)
These data are exclusively technical
and help identifying and correcting
errors as well as optimising vehicle
functions.
Motion profiles indicating travelled
routes cannot be created with these
data.
If services are used (e.g. repair
works, service processes, warranty
cases, quality assurance),
employees of the service network
(manufacturer included) are able to
read out this technical information
from the event and error data storage
modules applying special diagnostic
devices. If required, you will receive
further information at these
workshops. After an error has been
corrected, the data are deleted from
the error storage module or they are
constantly overwritten.When using the vehicle, situations
may occur in which these technical
data related to other information
(accident report, damages on the
vehicle, witness statements etc.) may be associated with a specific person -
possibly, with the assistance of an
expert.
Additional functions contractually
agreed upon with the client (e.g.
vehicle location in emergency cases)
allow the transmission of particular
vehicle data from the vehicle.