Note■The battery acid level is also checked regularly by a specialist garage as part
of the inspection service.■
For technical reasons, on vehicles with the description “AGM”, the electrolyte
level cannot be checked.
Charging
Read and observe
and on page 200 first.
A properly charged vehicle battery is essential for reliably starting the engine.
A charging operation can be performed if the following conditions are satis-
fied.
The engine is turned off.
The ignition is switched off.
All consumers are turned off.
The bonnet is open.
“Fast charging” with high currents
›
Disconnect both battery cables (first of all “negative”, then “positive”).
›
Attach the terminal clamps of the charger to the battery terminals (red =
“positive”, black = “negative”).
›
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.
›
Only then disconnect the charger's terminal clamps.
›
Reconnect the cables to the battery (first of all “positive”, then “negative”).
Charging with low voltages
It is not necessary to disconnect the cables from the battery if you recharge
the vehicle battery, for example from a mini-charger.
Refer to the instructions of the charger manufacturer .
A charging current of 0.1 multiple of the total vehicle battery capacity (or low-
er) must be used until full charging is achieved.
The vent plugs of the vehicle battery should not be opened for charging.
WARNING■ When you charge a battery, hydrogen is released, and a highly explosive
gas mixture is also produced. An explosion can be caused through sparkling
over during unclamping or loosening of the cable plug while the ignition is
on.■
Creating a bridge between the poles on the battery (e.g. with metal ob-
jects - cables) creates a short circuit - risk of damage to the battery, explo-
sion and burning of the battery, jets of acid spurting out.
■
Avoid creating sparks when working with cables and electrical devices.
Strong sparking represents a risk of injury.
■
Before carrying out any work on the electrical system, switch off the en-
gine, the ignition and all electrical components and disconnect the negative
terminal
.
■
“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
■
We therefore recommend that vehicle batteries be “rapidly charged” by a
specialist garage.
CAUTION
On vehicles with the START/STOP system or additional heating (auxiliary heat-
ing), do not connect the pole terminal of the charger directly to the negative
terminal of the vehicle battery, but rather only to the engine earth » page 220,
Jump-starting using the battery from another vehicle .
Replacing
Read and observe
and on page 200 first.
The new vehicle battery must have the same capacity, voltage, current and
size as the original battery. 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
disposed of in accordance with national regulations.
Disconnecting and reconnecting
Read and observe
and on page 200 first.
Disconnecting
›
Switch off the ignition.
202General Maintenance
Replacing the windscreen wiper bladesFig. 217
Windscreen wiper blade
Read and observe
on page 226 first.
Before replacing the windscreen wiper blade, put the windscreen wiper arms
into the service position.
Service position for changing wiper blades
›
Closing the bonnet.
›
Switch the ignition off and on again.
›
Within 10 seconds, press the lever in position
4
and hold it in position for
around 2 seconds » page 82, Windscreen wipers and washers .
The windscreen wiper arms move into the service position.
Removing the wiper blade
›
Lift the wiper arm from the window in the direction of
1
» Fig. 217 .
›
Tilt the wiper blade to the stop in the same direction.
›
Hold the upper part of the wiper arm and press the securing mechanism
A
in the direction of arrow
2
.
›
Remove the wiper blade in the direction of the arrow
3
.
Attaching the windscreen wiper blade
›
Push the windscreen wiper blade to the stop until it locks into place.
›
Check that the windscreen wiper blade is correctly attached.
›
Fold the windscreen wiper arm back to the windscreen.
›
Turn on the ignition and press the lever into position
4
» page 82 , Wind-
screen wipers and washers .
The windscreen wiper arms move into the home position.
Replacing the rear window wiper bladeFig. 218
Rear window wiper blade
Read and observe
on page 226 first.
Removing the wiper blade
›
Lift the wiper arm from the window in the direction of
1
» Fig. 218 .
›
Tilt the wiper blade to the stop in the same direction.
›
Hold the upper part of the wiper arm and press the securing mechanism
A
in the direction of arrow
2
.
›
Remove the wiper blade in the direction of the arrow
3
.
Attaching the windscreen wiper blade
›
Push the windscreen wiper blade to the stop until it locks into place.
›
Check that the windscreen wiper blade is correctly attached.
›
Fold the windscreen wiper arm back to the windscreen.
227Emergency equipment, and self-help
Automatic gearbox modes133
Automatic load deactivation203
automatic transmission selector lever lock defect
134
Automatic transmission Kickdown
135
Launch control135
Selector lever lock134
Automatic Transmission Malfunction
35
Warning light35
warning messages35
Auxiliary heating (auxiliary heating and ventila- tion)
121
Adjust122
Radio remote control123
Switching on/off122
B
Ball head Check fitting
172
Ready position170
Ball rod assembling, step 1
171
assembling, step 2171
Ready position170
removing, step 1172
removing, step 2173
Battery In the remote control key
224
Belts12
Belt tensioners15
Bonnet Closing
194
Opening194
Boot Class N1 vehicles
110
See Boot lid61
Boot lid automatic locking61
Closing61
Opening61
Brake information messages
35
warning light35
Brake booster131
brake fluid specification
199
Brake fluid199
Checking199
information messages35
Brake linings warning light
39
Brake pedal (automatic transmission) Indicator light
40
brakes Driving in
136
Brakes Brake booster
131
Brake fluid199
Braking and stabilisation systems138
Handbrake131
Brakes and parking130
Braking Information on braking
130
Break recommendation See Fatigue detection
166
Bulbs Replacing
231
Buttons in the door Power windows
64
C
Camera Lens care
184
Camera lens care
184
Car computersee multifunction display47
Care and maintenance177
cargo cover roll-up cargo cover
108
Cargo element108
Caring for the vehicle exterior Towing hitch
185
Car park132
Car park ticket holder95
Carrier Roof rack
113
Cavity protection184
Central locking54
Problems58
Central locking button58
Central warning light Indicator light
36
Change bulb for additional parking light
233
bulb for fog lights - Version 1234
bulb for fog lights - Version 2234
bulb for high beam233
bulb for the parking light233
bulb in the rear light - Version 1236
bulb in the rear light - Version 2237
daytime running light bulb233
light bulb in tail light235
Changing Engine oil
195
Wheels214
Changing a wheel Follow-up tasks
215
Preparation214
Removing and refitting a wheel215
Charging a vehicle battery202
Check Fit ball head properly
172
261Index
