09 Maintenance and service
Battery09
349
NOTE
If the battery has become so discharged
that everything is "black" and in principle
the car does not have all the normal electri-
cal functions and the engine is subsequently
started using an external battery or battery
charger, then the Start/Stop function will be
activated. It will then be possible 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 inade-
quate 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 temperature a
charging time of 3-4 hours is recom-
mended. The recommendation is that the
battery is charged using an external 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 about recharging the
battery, see the section "Battery" in the
chapter "Maintenance and service".
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10 Specifications
Electrical system
10
* Option/accessory, for more information, see Introduction.391 Electrical system
The car has a voltage-regulated AC alternator.
The electrical system is single-pole and uses
the chassis and engine casing as a conductor.The battery capacity is dependent upon the
equipment level in the vehicle.IMPORTANT
If the battery is replaced, replace it with a
battery of the same cold start capacity and
reserve capacity as the original (see the
decal on the battery).
Battery
EngineVoltage (V)Cold start capacity,
CCA - Cold Cranking Amperes (A)Reserve capacity
(minutes)
Petrol (Ethanol)12520–800100–160
Diesel12700–800135–160
Petrol/Diesel with Start/Stop function12760A135
ABattery type AGM (Absorbed Glass Mat) must be used in cars with the Start/Stop function.
NOTE
•The battery's container size should be
consistent with the original battery's
dimensions.
•The battery's height is different depend-
ing on size.
Eco Start/Stop DRIVe*For information on batteries in cars with
Eco Start/Stop DRIVe, see page 347.
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