Maintenance -> Changing the 12V Battery for Your Ford Fiesta 4 Door 2023

Maintenance  
WARNING: When lifting a  
plastic-cased battery, excessive pressure  
on the end walls could cause acid to flow  
through the vent caps, resulting in  
personal injury and damage to the  
vehicle or battery. Lift the battery with a  
battery carrier or with your hands on  
opposite corners.  
WARNING: Keep batteries out of  
reach of children. Batteries contain  
sulfuric acid. Avoid contact with skin,  
eyes or clothing. Shield your eyes when  
working near the battery to protect  
against possible splashing of acid  
solution. In case of acid contact with skin  
or eyes, flush immediately with water for  
a minimum of 15 minutes and get prompt  
medical attention. If acid is swallowed,  
call a physician immediately.  
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To avoid fluid contamination, the reservoir  
cap must remain in place and fully tight,  
unless you are adding fluid.  
Only use fluid that meets Ford  
specifications. See Capacities and  
Specifications (page 297).  
WARNING: Battery posts,  
terminals and related accessories  
contain lead and lead compounds. Wash  
hands after handling.  
WARNING: For vehicles with  
Auto-Start-Stop the battery requirement  
is different. You must replace the battery  
with one of exactly the same  
specification.  
CLUTCH FLUID CHECK  
The clutch and brake systems share the  
same fluid reservoir. See Brake Fluid  
Check (page 249).  
The battery is in the engine compartment.  
See Under Hood Overview (page 238).  
CHANGING THE 12V BATTERY  
Your vehicle has a maintenance-free  
battery. It does not require additional  
water during service.  
If the vehicle battery has a cover, make  
sure you correctly install it after cleaning  
or replacing the battery.  
WARNING: Batteries normally  
produce explosive gases which can  
cause personal injury. Therefore, do not  
allow flames, sparks or lighted  
substances to come near the battery.  
When working near the battery, always  
shield your face and protect your eyes.  
Always provide correct ventilation.  
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Fiesta (CE1) Vehicles Built From: 06-01-2020 Vehicles Built Up To: 19-04-2020, CG3654en enGBR, Edition date: 201909, Second-Printing  
Maintenance  
For longer, trouble-free operation, keep the  
Remove and Reinstall the Battery  
top of the battery clean and dry and the  
battery cables tightly fastened to the  
battery terminals. If any corrosion is  
present on the battery or terminals, remove  
the cables from the terminals and clean  
with a wire brush. You can neutralize the  
acid with a solution of baking soda and  
water.  
To disconnect or remove the battery, do  
the following:  
1. Apply the parking brake and switch the  
ignition off.  
2. Switch all electrical equipment off, for  
example lights and radio.  
3. Wait a minimum of two minutes before  
disconnecting the battery.  
We recommend that you disconnect the  
negative battery cable terminal from the  
battery if you plan to store your vehicle for  
an extended period.  
Note: If you only disconnect the negative  
battery cable terminal, make sure it is  
isolated or placed away from the battery  
terminal to avoid unintended connection or  
arcing.  
Note: The engine management system has  
a power hold function and remains powered  
for a period of time after you switch the  
ignition off. This is to allow diagnostic and  
adaptive tables to be stored. Disconnecting  
the battery without waiting can cause  
damage not covered by the vehicle  
Warranty.  
To maintain correct operation of the  
battery management system, if you add  
any electrical devices to your vehicle, do  
not connect the ground connection directly  
to the negative battery terminal. A  
connection at the negative battery terminal  
can cause inaccurate measurements of  
the battery condition and potential  
incorrect system operation.  
Note: If you add electrical accessories or  
components to your vehicle this may  
adversely affect battery performance,  
durability and the performance of other  
electrical systems on your vehicle.  
4. Disconnect the negative battery cable  
terminal.  
5. Disconnect the positive battery cable  
terminal.  
6. Remove the battery securing clamp.  
7. Remove the battery.  
8. To install, reverse the removal  
procedure.  
Note: Before reconnecting the battery,  
make sure the ignition remains switched off.  
Note: Make sure the battery cable terminals  
are fully tightened.  
If you replace the battery make sure it  
matches the electrical requirements of  
your vehicle.  
If you disconnect or replace the vehicle  
battery, you must reset the following  
features:  
If you disconnect or replace the battery  
and your vehicle has an automatic  
transmission, it must relearn its adaptive  
strategy. Because of this, the transmission  
may shift firmly when first driven. This is  
normal operation while the transmission  
fully updates its operation to optimum  
shift feel.  
Window bounce-back. See Opening  
and Closing the Windows (page 79).  
Clock Settings.  
Pre-set radio stations.  
251  
Fiesta (CE1) Vehicles Built From: 06-01-2020 Vehicles Built Up To: 19-04-2020, CG3654en enGBR, Edition date: 201909, Second-Printing  
Maintenance  
Battery Disposal  
CHANGINGTHEFRONTWIPER  
BLADES  
Make sure that you dispose of  
old batteries in an  
environmentally friendly way.  
Seek advice from your local authority  
about recycling old batteries.  
2
WASHER FLUID CHECK  
When adding fluid, use a mixture of washer  
fluid and water to help prevent freezing  
and improve the cleaning capability. For  
information on fluid dilution follow the  
manufacturer's instructions.  
1
E72899  
1. Lift the wiper arm and then press the  
wiper blade locking button.  
Note: The reservoir supplies the front and  
Note: Do not hold the wiper blade to lift the  
rear washer systems.  
wiper arm.  
2. Remove the wiper blade.  
CHECKING THE WIPER  
BLADES  
Note: Make sure that the wiper arm does  
not spring back against the glass when the  
wiper blade is not attached.  
3. To install, reverse the removal  
procedure.  
Note: Make sure that the wiper blade locks  
into place.  
CHANGING THE REAR WIPER  
BLADES  
E142463  
1. Lift the wiper arm.  
Run the tip of your fingers over the edge of  
the blade to check for roughness.  
Clean the wiper blades with washer fluid  
or water applied with a soft sponge or  
cloth.  
Note: Do not hold the wiper blade to lift the  
wiper arm.  
252  
Fiesta (CE1) Vehicles Built From: 06-01-2020 Vehicles Built Up To: 19-04-2020, CG3654en enGBR, Edition date: 201909, Second-Printing