Page 138 of 321
136Lighting
■ 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 159 of 321

Driving and operating157Caution
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
Autostop
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 137.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 152.
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 electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched to a powersaving 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 - 3 105.
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:
Page 240 of 321
238Vehicle care
No.Circuit46Terminal 87, main relay47Lambda probe48Fog lights49Right low beam50Left low beam51Horn52Ignition53Ignition, ventilated front seats54Ignition55Power windows, mirror folding56Windscreen washer57–58–59Diesel fuel heating, emission
control system60Mirror heating61Mirror heatingNo.Circuit62–63Rear window sensor64Adaptive forward lighting65Auxiliary pump (only on vehicles
with stop-start system)66Rear window washer system67Fuel system control module68–69Vehicle battery sensor70Rain sensor71Vehicle battery sensor
After changing of defective fuses
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunctions may occur.
Instrument panel fuse box
In left-hand drive vehicles, the fuse
box is behind the storage
compartment in the instrument panel.
Open compartment, compress the
locking tabs, fold compartment down and remove.
Page 316 of 321

314IndexAAccessories and vehicle modifications .......................... 215
Active Emergency Braking .........187
Active head restraints ...................45
Adaptive cruise control .......109, 175
Adaptive forward lighting ...109, 128
Adjustable air vents ...................148
Airbag and belt tensioners .........104
Airbag deactivation ..............62, 104
Airbag label................................... 57 Airbag system .............................. 57
Air conditioning regular operation ................................ 150
Air conditioning system .............. 137
Air intake .................................... 149
Air vents...................................... 148
All-wheel drive ........................... 165
Antilock brake system ................ 165
Antilock brake system (ABS) .....106
Anti-theft alarm system ................33
Anti-theft locking system .............. 32
Appearance care ........................260
Armrest ................................... 52, 53
Armrest storage ........................... 71
Ashtrays ....................................... 92
Automatic anti-dazzle ..................38
Automatic climate control system .................................... 139Automatic dimming ......................37
Automatic light control ...............126
Automatic locking ........................26
Automatic transmission .............160
Automatic transmission fluid .......219
Autostop ..................................... 108
Auxiliary heater ........................... 148
B Battery discharge protection ......135
Battery voltage ........................... 121
Belts.............................................. 53
Bonnet ....................................... 217
Brake and clutch fluid .................265
Brake and clutch system ...........105
Brake assist ............................... 167
Brake fluid .................................. 221
Brakes ............................... 165, 221
Breakdown.................................. 257
Bulb replacement ....................... 225
C
Capacities .................................. 285
Cargo management system ........76
Car Pass ...................................... 20
Catalytic converter .....................160
Central locking system ................22
Centre console lighting ..............134
Changing tyre and wheel size ...246
Charging system ........................ 104