Page 50 of 408
Emergencies
Jump start: description Fig. 45
Diagram of connections for vehicles
without St art Stop syst
em Fig. 46
Diagram of connections for vehicles
with St art Stop syst
em Jump lead terminal connections
Swit
ch off the ignition of both v ehicl
es
Page 59 of 408
Fuses and bulbs
No. Consumers/Amps
28 Trailer 25
31 Rear lid control unit 30
32 Control unit for parking aid,
front camera and radar 7.5/10
33 Airbag 7.5
34 R
everse switch, climate sensor,
electrochromic mirr or
, rear
power sockets (USB) 7.5
35 Diagnosis, headlight control
unit, headlight adjust
er7.5
36 Right LED headlight 7.5
37 L
eft LED headlight 7.5
38
Trailer 25
39 Right door 30
40 12V socket 20
42 Central locking 40
43 Beats Audio CAN and MOST. 30
44 Trailer 15
45 Electric driver
Page 347 of 408
Checking and refilling levels
Checking levels Fig. 310
Diagram for the location of the various el-
ements. From time to time, the levels of the different
fluids in the v
ehicl
e must be check ed. Ne
v
er
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant expansion tank
Page 357 of 408

Checking and refilling levels
disposed of appropriately and must not be
disposed of with ordinary household wast
e
.Energy management
Optimisation of the starting ca-pacity The power management controls the distri-
bution of electrical energy and thus helps to
ensur
e that ther
e is always enough power
available to start the engine.
If a vehicle with a conventional electrical sys-
tem is left parked for a long time, the battery
will gradually lose its charge because certain
electrical devices, such as the electronic
gearbox lock continues to draw current even
when the ignition is off. In some cases there
may not be enough power available to start
the engine.
Your vehicle is equipped with an intelligent
power management system to control the
distribution of electrical energy. This signifi-
cantly improves reliability when starting the
engine, and also prolongs the useful life of the
battery.
The main functions incorporated in the power
management system are battery diagnosis,
residual current management and dynam-
ic power management. Battery diagnosis
The battery diagnosis function constantly
regist ers the condition of the batt
ery. Sensors
detect the battery voltage, battery current
and battery temperature. This enables the
system to calculate the current power level
and charge condition of the battery.
Residual current management
The residual current management reduces
power consumption while the vehicle is
parked. It controls the supply of power to the
various electrical devices while the ignition is
switched off. The system takes the battery di-
agnosis data into consideration.
Depending on the power level of the battery,
switch off the individual electrical devices
one after the other to prevent the battery
from losing too much charge and to ensure
that the engine can be started reliably.
Dynamic power management
While the vehicle is moving, this function dis-
tributes the available power to the various
electrical devices and systems according to
their requirements. The power management
ensures that on-board systems do not con-
sume more electrical power than the alterna-
tor can supply, and thus maintains the maxi-
mum possible battery power level. Note