WARNING“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
CAUTION
On vehicles with the START/STOP system, the pole terminal of the charger must
not be connected directly to the negative terminal of the vehicle battery, but only
to the engine earth » page 191, Jump-starting in vehicles with the START-STOP
system .
Note
We therefore recommend that vehicle batteries be rapid charged by a specialist
garage.
Replacing
First read and observe the introductory information and safety warn-
ings
on page 171.
When replacing a battery, the new vehicle battery must have the same capacity,
voltage, amperage and be the same size. Suitable vehicle battery types can be
purchased from a specialist garage.
We recommend having the battery replaced by a specialist garage, where the
new vehicle battery will be installed properly and the original battery will be dis-
posed of in accordance with national regulations.
Disconnecting and reconnecting
First read and observe the introductory information and safety warn-
ings
on page 171.
On disconnecting and reconnecting the vehicle battery, the following functions
are initially deactivated or are no longer able to operate fault-free:
OperationOperating measureEnter the radio/navigation system code num-
ber» User manual of the radio
or » user manual of the naviga-
tion systemSetting the clock» page 13Data in the multifunction display are deleted.» page 25
Note
We recommend having the vehicle checked by a specialist garage in order to en-
sure full functionality of all electrical systems.
Automatic load deactivation
First read and observe the introductory information and safety warn-ings
on page 171.
The vehicle voltage control unit automatically prevents the battery from discharg-
ing when the battery is put under high levels of strain. This manifests itself by the
following.
› The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
› Where necessary, large convenience consumers such as seat heaters and rear
window heaters have their power limited or are shut off completely in the event
of an emergency.
CAUTION
■ Despite such intervention by the vehicle electric system management, the vehi-
cle battery may be drained. For example, when the ignition is switched on a long
time with the engine turned off or the side or parking lights are turned on during longer parking.■
Consumers that are supplied via a 12-V power socket can cause the vehicle bat-
tery to discharge when the ignition is switched off.
Note
Driving comfort is not impaired by consumers being deactivated. The driver is of-
ten not aware of it having taken place.
174General Maintenance
Side airbag138
Snow chains181
Spare wheel179
Speedometer11
See speedometer11
Speed symbol See Wheels
178
Spoiler151
START-STOP116
Manually activating/deactivating the system117
Operating conditions of the system117
Starting/shutting down the engine116
Starting and stopping the engine with the key97
Starting engine Jump-starting
189
Starting the engine Jump-starting
190
Key98
START STOP Information messages
118
Jump-starting191
Steering force assistance97
Steering wheel96
Storage compartment in centre console58
Storage compartment on the passenger side63
Storage compartments56
Storage compartments in the boot69
Storage compartments in the doors57
Storage pockets on the front seats64
sun roof48
sunshade48
Sun visors47
Switch See Ignition
98
Switching off the engine99
Switch light on/off41
T
Taking care of the vehicle Natural leather
158
Seat belts159
Taking care of your vehicle Automatic car wash system
153
Cavity protection156
Chrome parts155
Cleaning the wheels156
Decorative films155
Door lock cylinders156
Headlight lenses156
High-pressure cleaner153
Plastic parts154
Polishing the paintwork154
Rubber seals155
Taking care of the interior157
Taking care of your vehicle exterior153
Washing152
Washing by hand152
Wash system153
Wax treatment154
Taking care of your vehicles Fabric covers
159
TCS Operation
112
Technical data207
Telephone85
Temporary spare wheel179
Tiptronic103
Tools183
TOP TETHER146
Towing191
Towing a trailer119
Towing device Description
119
Drawbar load119
Use and care122
Towing eye Front192
Rear192
Towing protection36
Traction Control System (TCS)112
Trailer119, 123
13-pin power socket124
driving with a trailer124
Loading123
Safety eye124
Transport Luggage compartment
64
Roof rack system74
Transporting children safely142
Turn signal43
Turn signal system Indicator light
20
two-way radio systems85
Type plate207
Tyre inflation pressure Indicator light
20
Tyre load-bearing capacity See Wheels
177
Tyre pressure monitor Setting
178
Tyre repair Check pressure
189
Preparations188
Sealing and inflating the tyre188
Tyres175
Inflation pressure176
New177
See Wheels177
Sizes176
Tyre wear indicator176
U
Underbody protection
157
Unleaded petrol110
218Index
