WARNINGBattery acid is highly corrosive - it can cause injury, chemical burns or poi-
soning! Corrosive vapours in the air irritate and damage the respiratory
tract and the eyes. The following guidelines must be observed.■
Always wear protective gloves, eye and skin protection when handling
the vehicle battery.
■
If your eyes or skin come into contact with the electrolytic fluid, immedi-
ately wash the affected area for a few minutes long with a lot of water.
Seek medical assistance without delay.
■
Keep the vehicle battery away from people who are not completely inde-
pendent (e.g. children).
■
Do not tilt the battery otherwise battery electrolyte may flow out of the
battery vent openings.
WARNINGWorking on the car battery may cause explosion, fire, injury or chemical
burn! The following guidelines must be observed.■
Do not smoke, use open flames or light or transmitting devices.
■
A discharged vehicle battery may freeze slightly. Never charge up a fro-
zen or thawed vehicle battery. Replace a frozen vehicle battery.
■
Never use a damaged vehicle battery.
■
Do not connect the battery terminals, bridging the two poles will cause a
short circuit.
CAUTION
Ensure that battery acid does not come into contact with the bodywork – risk
of damage to the paintwork.
Note
■ We recommend having all work on the vehicle battery carried out by a spe-
cialist garage.■
You should replace batteries older than 5 years.
Check conditionFig. 157
Vehicle battery: Open the cover / acid level indicator
Read and observe
and on page 134 first.
The battery condition is checked regularly by a specialist garage as part of the inspection service.
Check the acid level
For car batteries with acid level indicator, acidity can be checked on the basis
of a colour display. In vehicle batteries with the label “AGM” there is no acid
level examination.
Depending on the equipment, the vehicle battery may be provided with a cov-
er, this can be opened in the direction of arrow » Fig. 157 -
.
Air bubbles can influence the colour of the indicator. Therefore, carefully knock
on the display » Fig. 157 -
.
Black colour – electrolyte level is correct.
Colourless or light yellow colour – electrolyte level too low, the battery must
be replaced.
Battery discharge
If frequent short journeys are made, the vehicle battery does not recharge suf-
ficiently.
The battery capacity decreases at low temperatures.
If the vehicle is not used for longer than 3 to 4 weeks, disconnect the negative
terminal of the battery or charge the battery constantly with a very low
charging current.
134General Maintenance
ChargingRead and observe
and on page 134 first.
Only charge the battery when the ignition and all consumers are switched off.Refer to the instructions of the charger manufacturer.
Charging
›
For vehicles withthe START-STOPsystem or auxiliary heater, connect the
terminal of the charger on the battery’s
pole, the
terminal of the charg-
er to the earth point of the engine » page 147.
›
For vehicles without the START-STOPsystem or auxiliary heating, connect
the charger terminals to the corresponding battery poles ( to
,
to
).
›
Plug the mains cable of the charger into the power socket and switch on the
device.
›
After charging has been successful: Switch off the charger and remove the
mains cable from the power socket.
›
Disconnect the terminals of the charger from the vehicle battery.
A charging current of 0.1 multiple of the total vehicle battery capacity (or low-
er) must be used until full charging is achieved.
WARNING■ When charging the vehicle battery, hydrogen is released - risk of explo-
sion. An explosion can be caused through sparking while unclamping or
loosening the cable plug.■
So-called“quick-charging” of the vehicle battery is dangerous and re-
quires a special charger and specialist knowledge. Therefore, have“Quick
loading” carried out by a specialist garage.
Disconnect/reconnect and change
Read and observe
and on page 134 first.
The new vehicle battery must have the same capacity, voltage, current and
size as the original battery.
We recommend you have the battery replaced by a specialist garage.
›
To disconnect , switch off the ignition and disconnect the negative terminal
first , then disconnect the positive terminal
.
›
When
reconnecting the battery, reconnect the positive terminal
first, then
connect the negative terminal .
After disconnecting and re-connecting the vehicle battery, the following func-
tions or devices are partially or completely inoperative.Function / deviceCommissioningWindows» page 53Time settings» page 38
CAUTION
■ Disconnect the battery only with the ignition and consumers turned off - risk
of damaging the electrical system of the vehicle.■
Before disconnecting the battery, close all the electric windows - otherwise
malfunctions of the window can occur.
■
Under no circumstances mix up the charging cables – risk of fire.
Note
After disconnecting and reconnecting the vehicle battery, we recommend hav-
ing the vehicle checked by a specialist to ensure that the full functionality of
the vehicle is guaranteed.135Inspecting and replenishing
If the tyre pressure is 1.3 bar or more›Set the tyre pressure back to the correct value » page 137.›
Continue driving carefully to the nearest specialist garage at a maximum
speed of 80 km/h (50 mph).
WARNINGA tyre filled with sealant has the same driving characteristics as a standard
tyre. The following guidelines must be observed.■
Do not drive faster than 80 km/h (50 mph).
■
Avoid accelerating at full throttle, sharp braking and fast cornering.
Jump-starting
Introduction
This chapter contains information on the following subjects:
Jump-starting using the battery from another vehicle
147WARNING■ The following instructions must be followed at all times when working on
the engine compartment » page 128.■
When handling the vehicle battery, the following warnings must be ob-
served » page 133 .
■
A discharged vehicle battery may already freeze at temperatures just be-
low 0 °C. If the battery is frozen, do not carry out a jump start with the bat-
tery of another vehicle – risk of explosion and injury!
■
Never jump-start vehicle batteries with an electrolyte level that is too low
– risk of explosion and caustic burns.
Jump-starting using the battery from another vehicleFig. 171
Start help:
- Discharged battery,
- power-supplying battery /
ground point of the engine for the START-STOP system
Fig. 172
Earth point and positive terminal on vehicles with the vehicle
battery in the luggage compartment
Read and observe
on page 147 first.
If, because of a discharged battery, it is not possible to start the engine, the
battery of another vehicle can be used to start the engine. To do this, jump-
start cables are required which have a sufficiently large cross-section and in-
sulated terminal clamps.
The rated voltage of the two batteries must be 12 V. The capacity (Ah) of the
power-supplying battery must not be significantly lower than the capacity of
the discharged battery.
The jump-start cables must be attached in the following sequence.
›
Attach clamp
1
to the positive terminal of the discharged battery.
›
Attach clamp
2
to the positive terminal of the power-supplying battery.
147Emergency equipment and self-help
Speed limiter104
Warning light34
Speed regulating system Warning light
34
Speed symbol138
Spoiler119
Stabilisation system96
Stability Control (ESC)97
START-STOP88
Jump-starting147
Manually deactivating/activating the system89
operation88
Warning light36
START-STOP system88
Start engine immobiliser
86
Starter button Lock / unlock the steering lock
86
Problems with the engine start88
Starting / stopping the engine87
Switch on/off ignition87
Starting engine Jump-starting
147
Starting the engine Jump-starting
147
Key87
Starter button87
Steering lock (KESSY system) Warning light
31
Steering wheel Buttons
39
Correct posture11
setting11
Stopping See Parking
91
Stopping the engine Key
87
Starter button87
Storage67
Storage compartment Glasses compartment72
in the boot78
in the centre console68
in the front arm rest72
on the dashboard68
on the front passenger side72
Storage compartments67
Storage net bag79
Stowage compartments in the doors
68
Sun visors59, 60
Switch Car battery
135
Switch light on/off54
Switch off Alarm
50
Switch off ignition87
Key87
Switch off TCS Warning light
32
Switch on ignition87
Key87
T
Tablet holder
74
TCS Deactivate/activate
97
Function97
Warning light31, 32
Technical data162
Telephone See Owner´s Manual -Infotainment
6
Ticket holder67
Time38
Tiptronic93
Tools141
TOP TETHER24
Towing149
Towing a trailer117
Towing away148
Towing device115
Accessories115
Description111
Vertical load111
Towing eye149
Towing protection50
Towing the vehicle148
Traction control (TCS)31, 97
Trailer Connect and disconnect
115
Load116
Loading116
Towing a trailer117
Trailer stabilization system (TSA)98
Trailer towing111
Transport Luggage compartment
75
Roof rack81
Towing device and trailer111
Transporting children19
Triangle140
TSA98
Turn signal55
Turn signal system Warning light
33, 34
Tyre load capacity138
Tyre pressure137
Warning light33
Tyre pressure monitoring109
Warning light33
Tyre repair145
Tyres136
damage136
Explanation of the label138
new136
Tyre pressure137
Wear indicator137
175Index