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10 Maintenance and service
10
384
NOTE
If the battery has become so discharged
that everything is "black" and in principle
the car does not have all the normal elec-
trical functions and the engine is subse-
quently started using an external battery or
battery charger, then the Start/Stop func-
tion will be activated. It will then be possi-
ble for the engine to be auto-stopped but
in the event of an auto-stop the Start/Stop
function may fail to auto-start the engine
due to inadequate capacity in the battery.
The battery must first be charged in order
to ensure a successful auto-start after an
auto-stop. At an outside temperature of
+15 °C the battery needs to be charged for
at least 1 hour. At a lower outside tem-
perature a charging time of 3-4 hours is
recommended. The recommendation is
that the battery is charged using an exter-
nal battery charger.
If this is not possible then the recommen-
dation is to temporarily deactivate the
Start/Stop function until the battery has
been adequately recharged.
For more information on charging the
starter battery, see Starter battery - gen-
eral (p. 378).
Related information
•
Battery - symbols (p. 380)
Electrical system
The electrical system is single-pole and uses
the chassis and engine casing as a conductor.
The car has a voltage-regulated AC alterna-
tor.
The size, type and performance of the starter
battery depend on the car's equipment and
function.
IMPORTANT
If the starter battery is replaced, make sure
you replace it with a battery with the same
cold starting capacity and type as the orig-
inal battery (see the label on the battery).
Related information
•
Starter battery - replacement (p. 380)
•
Starter battery - general (p. 378)
Fuses - general
All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.
If an electrical component or function does
not work, it may be because the component's
fuse was temporarily overloaded and failed. If
the same fuse fails repeatedly then there is a
fault in the circuit. Volvo recommends that
you visit an authorised Volvo workshop for
checking.
Changing
1. Look in the fuse diagram to locate the
fuse.
2. Pull out the fuse and check from the side
to see whether the curved wire has
blown.
3. If this is the case, replace it with a new
fuse of the same colour and amperage.
WARNING
Never use a foreign object or a fuse with
an amperage higher than that specified
when replacing a fuse. This could cause
significant damage to the electrical system
and possibly lead to fire.
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