136Driving and operatingThe engine will be switched off while
the ignition stays on.Vehicles with automatic transmission If the vehicle is at a standstill with
depressed brake pedal, Autostop is
activated automatically.
The engine will be switched off while
the ignition stays on.
The stop-start system will be disabled
on inclines of 12% or more.
Indication
An Autostop is indicated by control
indicator D.
During an Autostop, the heating and
brake performance will be
maintained.
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 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 not too low or too high.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.Note
The Autostop may be inhibited for
several hours after a battery
replacement or reconnection.
Certain settings of the climate control
system may inhibit an Autostop.
Climate control 3 120.
Immediately after higher speed
driving an Autostop may be inhibited.
New vehicle running-in 3 131.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
266IndexAAccessories and vehicle modifications .......................... 197
Active emergency braking ....99, 166
Adaptive cruise control .........98, 158
AdBlue .................................. 96, 139
Adjustable air vents ...................127
Advanced parking assist ............173
Airbag and belt tensioners ...........93
Airbag deactivation ................60, 93
Airbag label................................... 55 Airbag system .............................. 55
Air conditioning regular operation ................................ 129
Air conditioning system .............. 120
Air intake .................................... 128
Air vents...................................... 127
Antilock brake system ................ 146
Antilock brake system (ABS) .......95
Anti-theft alarm system ................35
Anti-theft locking system .............. 35
Appearance care ........................233
Armrest ................................... 51, 52
Ashtrays ....................................... 88
Automatic anti-dazzle ..................39
Automatic crash notification (ACN) ...................................... 107
Automatic light control ...............110
Automatic locking ........................28
Automatic transmission .............143Autostop............................... 97, 135
Auxiliary heater ........................... 127
B Battery discharge protection ......118
BlueInjection ............................... 139
Bonnet ....................................... 200
Brake and clutch fluid .................242
Brake and clutch system .............94
Brake assist ............................... 149
Brake fluid .................................. 203
Brakes ............................... 146, 203
Breakdown.................................. 231
Bulb replacement ....................... 206
C Capacities .................................. 252
Catalytic converter .....................139
Central locking system ................24
Centre console lighting ..............118
Centre console storage ...............70
Changing tyre and wheel size ...221
Charging system .......................... 93
Child locks ................................... 29
Child restraint installation locations ................................... 65
Child restraints.............................. 62
Child restraint systems ................62
Cigarette lighter ........................... 87
Climate control ............................. 16
Climate control systems .............119
