Downloaded from www.Manualslib.com manuals search engine 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 consumers 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), 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 174 .
Replacing
Read and observe
and on page 157 first.
The new vehicle battery must have the same capacity, voltage, current and thesame size as the original battery. Suitable vehicle battery types can be pur-
chased from a specialist garage.
We recommend that the battery is 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 or reconnecting
Read and observe
and on page 157 first.
Disconnecting
›
Switch off the ignition.
›First, disconnect the negative terminal
first, then the positive terminal
of the battery.
Connecting›
First, connect the positive
first, then the negative
battery terminal.
After disconnecting and re-connecting the vehicle battery, the following func-
tions or devices are partially or completely inoperative.
Function / deviceOperating measureElectric windows» page 59RadioEnter code » operating instruc-
tions for the Infotainment dis-
play radioTime settings» page 31
CAUTION
■ Disconnect the vehicle battery only with the ignition turned off - there is a
risk of damaging the electrical system of the vehicle.■
Under no circumstances must the battery cables be connected incorrectly –
risk of a cable fire.
Note
■ After disconnecting and re-connecting the vehicle battery, we recommend
having the vehicle checked by a specialist to ensure that the full functionality
of all electrical systems is guaranteed.■
The data of the multi-function display will be reset.
Automatic load deactivation
Read and observe
and on page 157 first.
The vehicle voltage control unit automatically prevents the battery from dis-
charging when the battery is subjected to heavy loads. This may be noticed
from the following.
› The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
› Where appropriate large convenience consumers, e.g. seat heaters, rear win-
dow heaters, have their power limited or shut off completely if necessary.
159Inspecting and replenishing
Downloaded from www.Manualslib.com manuals search engine No.Power consumer42Power windows - front passenger43Towing hitch - contact in the socket44Cigarette lighter, 12-volt power socket45Power windows - rear right46Front and rear window washer, operating lever under the steering
wheel47Towing hitch - contact in the socket48Towing hitch - right light49Control unit for fuel pump50Radio51Heating of the external mirror52KESSY control unit53KESSY steering lock54Not assigned55Heated front seats56Not assigned57Not assigned58Not assigned59Not assigned
Fuses in the engine compartment
Fig. 192
Remove the cover
Read and observe and on page 181 first.
Replacing fuses
›
Press the lock button on the cover in direction of arrow
1
» Fig. 192 .
›
Raise the cover and remove in the direction of the arrow
2
.
›
Remove the plastic clip from the holder on the cover of the fuse box in the
dash panel.
›
Replace the appropriate fuse.
›
Replace the clamp in the original position.
›
Place the cover on top of the fuse box.
›
Push in the locking button on the cover and lock.
The cover must engage securely.
Fuse assignment in the engine compartment
Fig. 193
Fuses
Read and observe and on page 181 first.
No.Power consumer1Radiator fan2Control unit for glow plug system3Control unit for ABS/ESC4Electrical auxiliary heating system5Electrical auxiliary heating system6Automatic gearbox7Engine control unit8Windscreen wipers9Central control unit, battery data module10Control unit for ABS/ESC 183Fuses and light bulbs
