130Climate controlAir 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
Driving and operating135
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating and
brake performance will be
maintained.
Caution
The steering assist can be
reduced during an Autostop.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled:
■ The stop-start system is not manually 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
AutostopOtherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 124.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 132.
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, e.g. 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.
136Driving and operating
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 89.
Restart of the engine by the
stop-start system The selector lever has to 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.
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 asfirmly as possible on downhill or uphill slopes. Depress the foot
brake at the same time to reduce
operating force.
Apply electric parking brake by pulling switch m for approx.
one second.
■ 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 the selector 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.
Vehicle care195
No.Circuit1Engine control module2Lambda sensor3Fuel injection, ignition system4Fuel injection, ignition system5–6Mirror heating7Fan control8Lambda sensor, engine cooling9Rear window sensor10Vehicle battery sensor11Trunk release12Adaptive forward lighting, auto‐
matic light control13ABS Valves14–15Engine control module16StarterNo.Circuit17Transmission control module18Heated rear window19Front power windows20Rear power windows21Rear eletrical centre22Left high beam (Halogen)23Headlamp washer system24Right low beam (Xenon)25Left low beam (Xenon)26Front fog lights27Diesel fuel heating28Start stop system29Electric parking brake30ABS pump31–32AirbagNo.Circuit33Adaptive forward lighting, auto‐
matic light control34Exhaust gas recirculation35Power windows, rain sensor,
exterior mirror36Climate control37–38Vacuum pump39Fuel system control module40Windscreen washer system41Right high beam (Halogen)42Radiator fan43Windscreen wiper44–45Radiator fan46–47Horn
240IndexAAccessories and vehicle modifications .......................... 177
Active head restraints ...................45
Adaptive forward lighting ..........
.................................. 93, 112, 187
Adjustable air vents ...................129
Airbag, belt tensioners and anti- roll bars ..................................... 88
Airbag deactivation ................61, 88
Airbag label................................... 56 Airbag system .............................. 56
Air conditioning regular operation ................................ 130
Air conditioning system .............. 122
Air intake .................................... 129
Air vents...................................... 129
Antilock brake system ................ 142
Antilock brake system (ABS) .......90
Anti-theft alarm system ................25
Anti-theft locking system .............. 25
Appearance care ........................218
Armrest ......................................... 52
Armrest storage ........................... 70
Ashtrays ....................................... 83 Automatic anti-dazzle ..................29
Automatic light control ...............109
Automatic locking ........................22Automatic transmission .............139
Auxiliary heater ........................... 128
B Battery discharge protection ......119
Battery voltage ........................... 102 Bonnet ....................................... 179
Brake and clutch fluid .................222
Brake and clutch system .............89
Brake assist ............................... 145
Brake fluid .................................. 182
Brakes ............................... 142, 182
Breakdown.................................. 216
Bulb replacement ....................... 185
C
Capacities .................................. 233
Car Pass ...................................... 18
Catalytic converter .....................138
Central locking system ................20
Centre console storage ...............70
Changing tyre and wheel size ...204
Charging system .......................... 89
Child restraint installation locations ................................... 64
Child restraints.............................. 62
Child restraint systems ................62
Cigarette lighter ........................... 83
Climate control ............................. 14
Climate control systems .............121
241
Clock............................................. 80
Code ........................................... 100
Control indicators.......................... 86
Control of the vehicle .................131
Controls ........................................ 76
Convex shape .............................. 28
Coolant and antifreeze ...............222
Cruise control ...................... 93, 149
Cupholders .................................. 69
Curve lighting.............................. 112
D Danger, Warnings and Cautions ...3
Daytime running lights ...............112
Declaration of conformity ............236
Diesel fuel system bleeding .......184
Diesel particle filter ...............91, 137
Door open .................................... 93
Doors ............................................ 23
Driver assistance systems ..........149
Driver Information Centre .............94
Driving characteristics and towing tips .............................. 172
Driving hints ................................ 131
E
Electric adjustment ......................28
Electrical system......................... 193
Electric parking brake ...........90, 143
Electric parking brake fault ...........90Electronic climate control system 124
Electronic driving programmes ..140
Electronic Stability Control.......... 146
Electronic Stability Control and Traction Control system ............91
Electronic Stability Control off....... 91
End-of-life vehicle recovery .......178
Engine compartment fuse box ...194
Engine coolant ........................... 181
Engine coolant temperature gauge ....................................... 85
Engine data ............................... 229
Engine exhaust .......................... 137
Engine identification ...................225
Engine oil ................... 179, 222, 226
Engine oil pressure ......................92
Entry lighting .............................. 118
Event data recorders ..................238
Exit lighting ................................ 119
Exterior care .............................. 218
Exterior light ................................. 93
Exterior lighting ....................12, 108
Exterior mirrors ............................. 28
F
Fault ........................................... 141
First aid ......................................... 74
First aid kit ................................... 74
Fixed air vents ........................... 129
Fog light ....................................... 93Fog lights ................................... 188
Folding mirrors ............................. 28
Following distance indication ......154
Forward collision alert................. 152
Front airbag system .....................59
Front fog lights ........................... 116
Front seats.................................... 46
Front storage ................................ 69
Front turn signal lights ...............189
Fuel............................................. 169
Fuel consumption - CO 2-
Emissions ............................... 171
Fuel for diesel engines ..............169
Fuel for petrol engines ...............169
Fuel gauge ................................... 85
Fuses ......................................... 193
G
Gauges ......................................... 83
General information ...................172
Glovebox ..................................... 68
Graphic-Info-Display, Colour- Info-Display .............................. 98
Ground clearance .......................132
H Halogen headlights ....................185
Hand brake ......................... 142, 143
Hazard warning flashers ............115
Headlight flash ........................... 110