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Vehicle care219far away from the discharged
vehicle battery as possible,
however at least 60 cm.
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 start.
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. 3 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.Towing
Towing the vehicle The towing eye and wheel wrench are
stowed with the vehicle tools 3 203.
Disengage the cover using a suitable
tool and remove.
Screw the towing eye clockwise into
the front towing point and tighten fully using the wheel wrench.
Attach a tow rope – or better still a tow
rod – to the towing eye, never to the
bumper or front suspension units.
Caution
Do not tow the vehicle from the
rear. The front towing eye must
only be used for towing and not
recovering a vehicle.
Switch on ignition to permit operation
of brake lights, horn and windscreen
wipers, and move the steering wheel
slightly to release the steering wheel
lock.
Switch off the air suspension system 3 142.
Caution
Deactivate the driver assistance
systems like active emergency
braking 3 165, otherwise the
vehicle may automatically brake during towing.
Move the selector lever to neutral.
Release the parking brake.
Page 238 of 249

236Customer informationOperating data in the vehicleControl units process data for
operation of the vehicle.
This data includes, e.g.: ● vehicle status information (e.g. speed, movement delay, lateral
acceleration, wheel rotation rate, "seat belts fastened" display)
● ambient conditions (e.g. temperature, rain sensor,
distance sensor)
As a rule such data is transient, not
stored for longer than an operational
cycle, and only processed on board the vehicle itself. Control units often
include data storage (including the
vehicle key). This is used to allow
information to be documented
temporarily or permanently on vehicle
condition, component stress,
maintenance requirements and
technical events and errors.Depending on technical equipment
level, the data stored is as follows:
● system component operating states (e.g. fill level, tyre
pressure, battery status)
● faults and defects in important system components (e.g. lights,
brakes)
● system reactions in special driving situations (e.g. triggering
of an airbag, actuation of the
stability control systems)
● information on events damaging the vehicle
● for electric vehicles the amount of
charge in the high-voltage
battery, estimated range
In special cases (e.g. if the vehicle
has detected a malfunction), it may be
necessary to save data that would
otherwise just be volatile.
When you use services (e.g. repairs,
maintenance), the operating data
saved can be read together with the
vehicle identification number and
used when necessary. Staff working
for the service network ( e.g. garages,
manufacturers) or third parties (e.g.breakdown services) can read the
data from the vehicle. The same
applies to warranty work and quality
assurance measures.
Data is generally read via the OBD
(On-Board Diagnostics) port
prescribed by law in the vehicle. The operating data which is read out,
documents the technical condition of
the vehicle or individual components
and assists with fault diagnosis,
compliance with warranty obligations
and quality improvement. This data,
in particular information on
component stress, technical events,
operator errors and other faults, is
transmitted to the manufacturer
where appropriate, together with the
vehicle identification number. The
manufacturer is also subject to
product liability. The manufacturer
potentially also uses operating data
from vehicles for product recalls. This
data can also be used to check
customer warranty and guarantee
claims.
Fault memories in the vehicle can be
reset by a service company when
carrying out servicing or repairs or at
your request.
Page 242 of 249

240IndexAAbsorptive Glass Mat battery .....185
Accessories and vehicle modifications .......................... 179
Active emergency braking ..103, 165
AdBlue ........................ 101, 145, 225
AdBlue gauge ............................... 93
AdBlue tank ................................ 229
Adjustable air vents ...................131
Airbag and belt tensioners ...........98
Airbag deactivation ................63, 98
Airbag label................................... 59 Airbag system .............................. 59
Air conditioning regular operation ................................ 132
Air conditioning system .............. 119
Air intake .................................... 132
Air suspension ........................... 142
Air suspension system................ 219
Air vents...................................... 131
Antifreeze ................................... 183
Antilock brake system ................ 156
Antilock brake system (ABS) .....100
Anti-theft alarm system ................36
Anti-theft bolts............................. 212
Anti-theft locking system .............. 35
Anti-theft security lock ..................23
Appearance care ........................221
Armrest ........................................ 51
Ashtrays ....................................... 91Automatic light control ...............110
Automatic locking ...................24, 29
Autostop ....................... 17, 137, 138
Auxiliary heater ........................... 125
B Battery .................... 21, 22, 125, 185
Battery discharge protection ......117
Battery, jump starting.................. 217
Belts.............................................. 55
Bonnet ....................................... 180
Bottle holders................................ 75
Brake assist ............................... 158
Brake fluid .......................... 185, 225
Brakes ............................... 156, 185
Brake system ............................. 100
Breakdown.................................. 219
Bulb replacement ....................... 189
Bus Rear seats ................................. 52
C
Cabin bulkhead grille ....................81
Capacities .................................. 229
Cargo management system ........78
Car Pass ...................................... 21
Catalytic converter .....................144
Central locking system ................24
Centre high-mounted brake light 195
Changing tyre and wheel size ...208
Charging system .......................... 99
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245Upholstery.................................. 223
USB socket ................................... 89
Using this manual ..........................3
V Vehicle battery ...................185, 217
Vehicle checks............................ 180
Vehicle data ................................ 229
Vehicle data recording and privacy ..................................... 235
Vehicle Identification Number ....227
Vehicle jack ................................ 203
Vehicle messages .....................105
Vehicle security ............................ 35
Vehicle specific data ......................3
Vehicle storage ........................... 179
Vehicle tools ............................... 203
Vehicle unlocking ........................... 6
Ventilation ................................... 118
W
Warning chimes .........................106
Warning lights ............................... 91
Warning triangle .......................... 81
Washer and wiper systems .........15
Washer fluid ............................... 184
Washing the vehicle ...................221
Wheel changing .........................212
Wheel covers ............................. 208
Wheels and tyres .......................204
Wheel wrench ............................. 203Wide view mirror.....................40, 44
Window guard............................... 81
Windows ....................................... 41
Windscreen................................... 41
Windscreen wiper and washer ....87
Winter tyres ............................... 204
Wiper blade replacement ..........188