Page 195 of 289

Driving and operating193If the system has been deactivated, it
is not reactivated automatically the
next time the ignition is switched on.
Front-rear parking assist
The front-rear parking assist
measures the distance between the vehicle and obstacles in front and
behind the vehicle. It informs and
warns the driver by giving acoustic
signals and display indication.
It uses two different acoustic warning
signals for the front and rear
monitoring areas, each with a
different tone frequency.
The system operates with ultrasonic parking assist sensors in the rear and
front bumper.
Activation
In addition to the rear parking assist,
the front parking assist is triggered
when an obstacle is detected in front
and the speed of the vehicle is below 6 mph.Info Display without touchscreen
The system is ready to operate when
the LED in the parking assist button
é is not illuminated.Info Display with touchscreen
Activate the parking assist in the
vehicle personalisation 3 123.
Indication
Depending on which side of the
vehicle is closer to an obstacle,
acoustic warning signals in the
vehicle sound on the respective side.
The interval between the sounds
becomes shorter as the vehicle gets closer to that obstacle. When the
distance is less than approx. 30 cm, the sound is continuous.Additionally, the distance to rear and
front obstacles is displayed by
changing distance lines in the Info Display 3 119.
If the vehicle stops for more than 3
seconds in a forward gear, if
automatic transmission is in P or if no
further obstacles are detected, no acoustic warning signals are given.
Deactivation
The system is deactivated
automatically when vehicle speed
exceeds 6 mph by pressing the
parking assist button é.Info Display without touchscreen
Press é to deactivate the system.
The LED in the button illuminates
when the system is deactivated.Info Display with touchscreen
Deactivate the parking assist in the
vehicle personalisation 3 123.
If the system has been deactivated
manually, it is not reactivated
automatically the next time the
ignition is switched on.
Page 252 of 289

250Vehicle care● A discharged vehicle battery canalready freeze at a temperature
of 0 °C. Defrost the frozen battery before connecting jump leads.
● Wear eye protection and protective clothing when
handling a battery.
● Use a booster battery with the same voltage (12 V). Its capacity
(Ah) must not be much less than
that of the discharged vehicle
battery.
● Use jump leads with insulated terminals and a cross section of
at least 16 mm 2
(25 mm 2
for
diesel engines).
● Do not disconnect the discharged
vehicle battery from the vehicle.
● Switch off all unnecessary electrical consumers.
● Do not lean over the vehicle battery during jump starting.
● Do not allow the terminals of one
lead to touch those of the other
lead.● The vehicles must not come into contact with each other during
the jump starting process.
● Apply the parking brake, transmission in neutral,
automatic transmission in P.
Open the positive terminal protection
caps of both vehicle batteries.
Lead connection order: 1. Connect the red lead to the positive terminal of the booster
battery.
2. Connect the other end of the red lead to the positive terminal of the
discharged battery.
3. Connect the black lead to the negative terminal of the boosterbattery.
4. Connect the other end of the black
lead to a vehicle grounding point
of your vehicle in the engine
compartment.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump.
2. After 5 minutes, start the other engine. Start attempts should be
made for no longer than 15
seconds at an interval of 1 minute.
3. Allow both engines to idle for approx. three minutes with the
leads connected.
4. Switch on electrical consumers e.g. headlights, heated rear
window of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.
Page 254 of 289

252Vehicle careCaution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust gases from the towing vehicle, switch on the
air recirculation and close the
windows.
Vehicles with automatic transmission: The vehicle must be towed facing
forwards, not faster than 50 mph nor further than 60 miles. In all other
cases and when the transmission is
defective, the front axle must be
raised off the ground.
Seek the assistance of a workshop. After towing, unscrew the towing eye.
Insert cap with the flange into the
recess and fix cap by pushing.
Towing another vehicle
On the rear bumper, press the cover
plate on its upper left corner to unclip it.
The towing eye is stowed with the
vehicle tools 3 234.
Screw in the towing eye clockwise as
far as it will go until it stops in a
horizontal position.
The lashing eye at the rear
underneath the vehicle must never be used as a towing eye.
Attach a tow rope – or better a tow rod
– to the towing eye.
The towing eye must only be used for towing and not for recovering a
vehicle.
Page 284 of 289

282IndexAAccessories and vehicle modifications .......................... 211
Active emergency braking ..115, 188
Adaptive cruise control .......114, 179
AdBlue ................................ 113, 161
Adjustable air vents ...................148
Airbag and belt tensioners .........110
Airbag deactivation ..............64, 110
Airbag label................................... 60 Airbag system .............................. 60
Air conditioning regular operation ................................ 150
Air conditioning system .............. 140
Air intake .................................... 149
Air vents...................................... 148
Antilock brake system ................ 168
Antilock brake system (ABS) .....111
Anti-theft alarm system ................36
Anti-theft locking system .............. 35 Appearance care ........................253
Armrest ......................................... 51
Automatic anti-dazzle ..................40
Automatic crash notification (ACN) ...................................... 127
Automatic light control ...............130
Automatic locking ........................28
Automatic transmission .............164
Autostop ............................. 114, 156B
Battery discharge protection ......137
BlueInjection ............................... 161
Bonnet ....................................... 213
Brake and clutch fluid .................262
Brake assist ............................... 169
Brake fluid .................................. 216 Brakes ............................... 168, 216
Brake system ............................. 111
Breakdown.................................. 251
Bulb replacement ....................... 219
C Camera display........................... 199
Capacities .................................. 270
Cargo management system ........81
Catalytic converter .....................160
Central locking system ................24
Centre console lighting ..............136
Centre high-mounted brake light 228
Changing tyre and wheel size ...239
Charging system ........................ 110
child lock ....................................... 42
Child locks ................................... 28
Child restraint installation locations ................................... 69
Child restraints.............................. 66
Child restraint systems ................66
Child surveillance mirror ...............40
Climate control ............................. 15