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134Driving and operatingbe removed when the selector
lever is in position P.
For vehicles with manual
transmission automated, the
key can only be removed from
the ignition switch when the
parking brake is applied.
■ Lock the vehicle.
■ Activate the anti-theft alarm system.
■ The engine cooling fans may run after the engine has been switchedoff 3 177.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for
approx. 30 seconds before
switching off, in order to protect
the turbocharger.
Notice
In the event of an accident with airbag deployment, the engine is
switched off automatically if the
vehicle comes to a standstill within a
certain time.Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Diesel particle filter
The diesel particle filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification. The filter is cleaned
by periodically burning off the soot
particles at high temperature. This
process takes place automatically
under set driving conditions and may
Page 179 of 249

Vehicle care177
■ Open the bonnet, close all doorsand lock the vehicle.
■ Disconnect the clamp from the negative terminal of the vehicle
battery. Beware that all systems are
not functional, e.g. anti-theft alarm
system.
Putting back into operation
When the vehicle is to be put back into
operation:
■ Connect the clamp to the negative terminal of the vehicle battery.
Activate the electronics of the
power windows.
■ Check tyre pressure.
■ Fill up the washer fluid reservoir.
■ Check the engine oil level.
■ Check the coolant level.
■ Fit the number plate if necessary.End-of-life vehicle
recovery
Information on end-of-life vehicle
recovery centres and the recycling of
end-of-life vehicles is available on our website. Only entrust this work to an
authorised recycling centre.
Gas vehicles must be recycled by a
service centre authorised for gas
vehicles.Vehicle checks
Performing work9 Warning
Only perform engine compartment
checks when the ignition is off.
The cooling fan may start
operating even if the ignition is off.
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182Vehicle care
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below the MIN mark,
seek the assistance of a workshop.
Brake and clutch fluid 3 223.
Vehicle battery The vehicle is equipped with a lead
acid battery.
Vehicles with stop-start system will be
equipped with an AGM battery which
is not a lead acid battery.
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the vehicle battery. Avoid the use of
unnecessary electrical consumers.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Laying up the vehicle for more than
four weeks can lead to vehicle battery discharge. Disconnect the clamp from
the negative terminal of the vehicle
battery.
Ensure the ignition is switched off
before connecting or disconnecting
the vehicle battery.
The anti-theft alarm siren must be
deactivated as follows: Switch the
ignition on then off, disconnect the
vehicle's battery within 15 seconds.
Battery discharge protection 3 117.
Replacing the vehicle battery
Notice
Any deviation from the instructions
given in this section may lead to
temporary deactivation of the stop-
start system.
When the vehicle battery is being
replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
must be closed off with a dummy cap, and the ventilation in the vicinity of the
negative terminal must be opened.
Only use batteries that allow the fuse
box to be mounted above the vehicle
battery.
Vehicles with stop-start system
Be sure to have the AGM (Absorptive
Glass Mat) battery replaced with another AGM battery.
Page 244 of 249

242IndexAAccessories and vehicle modifications .......................... 176
Adjustable air vents ...................126
Airbag and belt tensioners ...........88
Airbag deactivation ................46, 88
Airbag label................................... 41 Airbag system .............................. 41
Air conditioning regular operation ................................ 127
Air conditioning system .............. 119
Air intake .................................... 127
Air vents...................................... 126
Antilock brake system ................ 143
Antilock brake system (ABS) .......89
Anti-theft alarm system ................26
Anti-theft locking system .............. 26
Appearance care ........................219
Ashtrays ....................................... 81
Automatic anti-dazzle ..................29
Automatic light control ...............109
Automatic locking ........................24
Automatic transmission .............136
Autostop ....................................... 92
B Battery discharge protection ......117
Battery voltage ........................... 103 Belts.............................................. 38Bicycle rack .................................. 58
Bonnet ....................................... 178
Brake and clutch fluid .................223
Brake and clutch system .............89
Brake assist ............................... 144
Brake fluid .................................. 181
Brakes ............................... 143, 181
Breakdown.................................. 217
Bulb replacement ....................... 184
C Capacities .................................. 236
Car Pass ...................................... 20
Catalytic converter .....................135
Central locking system ................22
Centre high-mounted brake light 192
Changing tyre and wheel size ...205
Charging system .......................... 88
Child locks ................................... 24
Child restraint installation locations ................................... 50
Child restraints.............................. 48
Child restraint systems ................48
Cigarette lighter ........................... 81
City mode ................................... 146
Climate control ............................. 15 Climate control systems .............118
Clock ............................................ 79
Code ........................................... 100
Colour-Info-Display .......................98