Page 150 of 343
148Lighting
■ Auxiliary heater
■ Heated rear window and mirrors
■ Heated seats
■ Fan
In the second stage a message which
confirms the activation of the vehicle
battery discharge protection will be
displayed in the Driver Information
Centre.
Switching off electric lights
To prevent discharge of the vehicle
battery when the ignition is switched
off, some interior lights are switched
off automatically after some time.
Page 165 of 343

Driving and operating163
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 3 152.
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 electric
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.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 - 3 113.
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
Page 338 of 343

336IndexAAccessories and vehicle modifications .......................... 221
Active Emergency Braking .........192
Active head restraints ..................38
Adaptive cruise control .......118, 181
Adaptive forward lighting ..........
................................ 117, 139, 233
Adjustable air vents ...................157
Airbag and belt tensioners .........112
Airbag deactivation ..............51, 112
Airbag system .............................. 49
Air conditioning regular operation ................................ 158
Air conditioning system .............. 150
Air intake .................................... 158
Air vents...................................... 157
Antilock brake system ................ 170
Antilock brake system (ABS) .....114
Anti-theft alarm system ................28
Anti-theft locking system .............. 27
Appearance care ........................279
Armrest .................................. 45, 46
Armrest storage ........................... 61
Ashtrays ..................................... 106
Automatic anti-dazzle ..................32
Automatic light control ...............137
Automatic locking ........................24Automatic transmission .............166
Auxiliary heater ........................... 157
B Battery discharge protection ......147
Battery voltage ........................... 128
Belts.............................................. 46
Bicycle rack .................................. 63
Bonnet ....................................... 223
Brake and clutch fluid .................284
Brake and clutch system ...........113
Brake assist ............................... 173
Brake fluid .................................. 226 Brakes ............................... 170, 226
Breakdown.................................. 277
Bulb replacement ....................... 229
C Capacities .................................. 307
Cargo management system ........90
Car Pass ...................................... 20
Catalytic converter .....................166
Central locking system ................22
Centre console lighting ..............146
Centre console storage ...............62
Changing tyre and wheel size ...262
Charging system ........................ 113
Child locks ................................... 24
Child restraint installation locations ................................... 55