Maintenance -> Brake Fluid Check for Your Ford Focus 4 Door 2023

Maintenance  
1. Stop your vehicle as soon as it is safe  
Engine Coolant Temperature  
to do so. Fully apply the parking brake,  
shift into park (P) or neutral (N).  
Management (If Equipped)  
2. Leave the engine running until the  
coolant temperature gauge needle  
returns to the normal position. If the  
temperature does not drop after  
several minutes, follow the remaining  
steps.  
WARNING: To reduce the risk of  
crash and injury, be prepared that the  
vehicle speed may reduce and the  
vehicle may not be able to accelerate  
with full power until the coolant  
temperature reduces.  
3. Switch the engine off and wait for it to  
cool. Check the coolant level.  
If you tow a trailer with your vehicle, the  
engine may temporarily reach a higher  
temperature during severe operating  
conditions, for example ascending a long  
or steep grade in high ambient  
temperatures.  
4. If the coolant level is at or below the  
minimum mark, add prediluted coolant  
immediately.  
5. If the coolant level is normal, restart  
the engine and continue.  
At this time, you may notice the coolant  
temperature gauge moves toward the red  
zone and a message may appear in the  
information display.  
BRAKE FLUID CHECK  
You may notice a reduction in vehicle  
speed caused by reduced engine power in  
order to manage the engine coolant  
temperature. Your vehicle may enter this  
mode if certain high-temperature and  
high-load conditions take place. The  
amount of speed reduction depends on  
vehicle loading, grade and ambient  
temperature. If this occurs, there is no  
need to stop your vehicle. You can  
continue to drive.  
The air conditioning may automatically  
turn on and off during severe operating  
conditions to protect the engine from  
overheating. When the coolant  
temperature decreases to the normal  
operating temperature, the air conditioning  
turns on.  
WARNING: Do not use any fluid  
other than the recommended brake fluid  
as this will reduce brake efficiency. Use  
of incorrect fluid could result in the loss  
of vehicle control, serious personal injury  
or death.  
WARNING: Only use brake fluid  
from a sealed container. Contamination  
with dirt, water, petroleum products or  
other materials may result in brake  
system damage or failure. Failure to  
adhere to this warning could result in the  
loss of vehicle control, serious personal  
injury or death.  
WARNING: Do not allow the fluid  
to touch your skin or eyes. If this  
happens, rinse the affected areas  
immediately with plenty of water and  
contact your physician.  
If the coolant temperature gauge moves  
fully into the red zone, or if the coolant  
temperature warning or service engine  
soon messages appear in your information  
display, do the following:  
427  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing  
 
Maintenance  
CHANGING THE 12V BATTERY  
WARNING: A fluid level between  
the MAX and MIN lines is within the  
normal operating range and there is no  
need to add fluid. A fluid level not in the  
normal operating range could  
compromise the performance of the  
system. Have your vehicle checked  
immediately.  
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.  
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.  
E170684  
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 476).  
WARNING: Battery posts,  
terminals and related accessories  
contain lead and lead compounds. Wash  
hands after handling.  
CLUTCH FLUID CHECK -  
MANUAL TRANSMISSION  
The clutch and brake systems share the  
same fluid reservoir. See Brake Fluid  
Check (page 427).  
WARNING: For vehicles with  
Auto-Start-Stop the battery requirement  
is different. You must replace the battery  
with one of exactly the same  
specification.  
The battery is in the engine compartment.  
428  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing