Maintenance and Specifications -> ENGINE COOLANT for Your Ford Focus 4 Door Second Generation (2004-2010)

Maintenance and Specifications  
If the battery has been disconnected or a new battery has been installed,  
the clock and the preset radio stations must be reset once the battery is  
reconnected.  
Always dispose of automotive  
batteries in a responsible manner.  
Follow your local authorized  
standards for disposal. Call your  
local authorized recycling center  
to find out more about recycling  
automotive batteries.  
RECYCLE  
ENGINE COOLANT  
Checking engine coolant  
The concentration and level of engine coolant should be checked at the  
intervals listed in scheduled maintenance information. The coolant  
concentration should be maintained at 50/50 coolant and distilled water,  
which equates to a freeze point of -34°F (-36°C). Coolant concentration  
testing is possible with a hydrometer or antifreeze tester (such as the  
Rotunda Battery and Antifreeze Tester, 014–R1060). The level of coolant  
should be maintained at the “FULL COLD” level or within the “COLD  
FILL RANGE” in the coolant reservoir. If the level falls below, add  
coolant per the instructions in the Adding engine coolant section.  
Your vehicle was factory-filled with a 50/50 engine coolant and water  
concentration. If the concentration of coolant falls below 40% or above  
60%, the engine parts could become damaged or not work properly. A  
50–50 mixture of coolant and water provides the following:  
Freeze protection down to -34°F (-36°C).  
Boiling protection up to 265°F (129°C).  
Protection against rust and other forms of corrosion.  
Enables calibrated gauges to work properly.  
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When the engine is cold, check the  
level of the engine coolant in the  
reservoir.  
The engine coolant should be at the “FULL COLD” level or within the  
“COLD FILL RANGE” as listed on the engine coolant reservoir  
(depending upon application).  
Refer to scheduled maintenance information for service interval  
schedules.  
Be sure to read and understand Precautions when servicing your  
vehicle in this chapter.  
If the engine coolant has not been checked at the recommended interval,  
the engine coolant reservoir may become low or empty. If the reservoir is  
low or empty, add engine coolant to the reservoir. Refer to Adding  
engine coolant in this chapter.  
Note: Automotive fluids are not interchangeable; do not use engine  
coolant, antifreeze or windshield washer fluid outside of its specified  
function and vehicle location.  
Adding engine coolant  
When adding coolant, make sure it is a 50/50 mixture of engine coolant  
and distilled water. Add the mixture to the coolant reservoir, when the  
engine is cool, until the appropriate fill level is obtained.  
Do not add engine coolant when the engine is hot. Steam and  
scalding liquids released from a hot cooling system can burn you  
badly. Also, you can be burned if you spill coolant on hot engine parts.  
Do not put engine coolant in the windshield washer fluid  
container. If sprayed on the windshield, engine coolant could  
make it difficult to see through the windshield.  
Add Motorcraft Premium Gold Engine Coolant or equivalent  
meeting Ford specification WSS-M97B51-A1. Refer to  
Maintenance product specifications and capacities in this chapter.  
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Note: Use of Motorcraft Cooling System Stop Leak Pellets or an  
equivalent product meeting Ford specification WSS-M99B37-B6, may  
darken the color of Motorcraft Premium Gold Engine Coolant from  
yellow to golden tan.  
Do not add/mix an orange-colored, extended life coolant such  
as Motorcraft Specialty Orange Engine Coolant, meeting Ford  
specification WSS-M97B44-D, with the factory-filled coolant.  
Mixing Motorcraft Specialty Orange Engine Coolant or any  
orange-colored extended life product with your factory filled coolant  
can result in degraded corrosion protection.  
A large amount of water without engine coolant may be added, in case  
of emergency, to reach a vehicle service location. In this instance, the  
cooling system must be drained and refilled with a 50/50 mixture of  
engine coolant and distilled water as soon as possible. Water alone  
(without engine coolant) can cause engine damage from corrosion,  
overheating or freezing.  
Do not use alcohol, methanol, brine or any engine coolants  
mixed with alcohol or methanol antifreeze (coolant). Alcohol  
and other liquids can cause engine damage from overheating or  
freezing.  
Do not add extra inhibitors or additives to the coolant. These  
can be harmful and compromise the corrosion protection of the engine  
coolant.  
For vehicles with overflow coolant systems with a non-pressurized cap  
on the coolant recovery system, add coolant to the coolant recovery  
reservoir when the engine is cool. Add the proper mixture of coolant and  
water to the “FULL COLD” level. For all other vehicles which have a  
coolant degas system with a pressurized cap, or if it is necessary to  
remove the coolant pressure relief cap on the radiator of a vehicle with  
an overflow system, follow these steps to add engine coolant.  
To reduce the risk of personal injury, make sure the engine is  
cool before unscrewing the coolant pressure relief cap. The  
cooling system is under pressure; steam and hot liquid can come out  
forcefully when the cap is loosened slightly.  
1. Before you begin, turn the engine off and let it cool.  
2. When the engine is cool, wrap a thick cloth around the coolant  
pressure relief cap on the coolant reservoir (a translucent plastic bottle).  
Slowly turn cap counterclockwise (left) until pressure begins to release.  
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3. Step back while the pressure releases.  
4. When you are sure that all the pressure has been released, use the  
cloth to turn it counterclockwise and remove the cap.  
5. Fill the coolant reservoir slowly with the proper coolant mixture (see  
above), to within the “COLD FILL RANGE” or the “FULL COLD” level on  
the reservoir. If you removed the radiator cap in an overflow system, fill  
the radiator until the coolant is visible and radiator is almost full.  
6. Replace the cap. Turn until tightly installed. (Cap must be tightly  
installed to prevent coolant loss.)  
After any coolant has been added, check the coolant concentration (refer  
to Checking engine coolant). If the concentration is not 50/50  
(protection to –34°F/–36°C), drain some coolant and adjust the  
concentration. It may take several drains and additions to obtain a 50/50  
coolant concentration.  
Whenever coolant has been added, the coolant level in the coolant  
reservoir should be checked the next few times you drive the vehicle. If  
necessary, add enough 50/50 concentration of engine coolant and  
distilled water to bring the liquid level to the proper level.  
If you have to add more than 1.0 quart (1.0 liter) of engine coolant per  
month, have your authorized dealer check the engine cooling system.  
Your cooling system may have a leak. Operating an engine with a low  
level of coolant can result in engine overheating and possible engine  
damage.  
Recycled engine coolant  
Ford Motor Company does NOT recommend the use of recycled engine  
coolant in vehicles originally equipped with Motorcraft Premium Gold  
Engine Coolant since a Ford-approved recycling process is not yet  
available.  
Used engine coolant should be disposed of in an appropriate  
manner. Follow your community’s regulations and standards for recycling  
and disposing of automotive fluids.  
Coolant refill capacity  
To find out how much fluid your vehicle’s cooling system can hold, refer  
to Maintenance product specifications and capacities in this chapter.  
Fill your engine coolant reservoir as outlined in Adding engine coolant  
in this section.  
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Severe climates  
If you drive in extremely cold climates (less than –34° F [–36° C ]):  
It may be necessary to increase the coolant concentration  
above 50%.  
NEVER increase the coolant concentration above 60%.  
Increased engine coolant concentrations above 60% will  
decrease the overheat protection characteristics of the engine  
coolant and may cause engine damage.  
Refer to the chart on the coolant container to ensure the  
coolant concentration in your vehicle will provide adequate  
freeze protection at the temperatures in which you drive in the  
winter months.  
If you drive in extremely hot climates:  
It is still necessary to maintain the coolant concentration  
above 40%.  
NEVER decrease the coolant concentration below 40%.  
Decreased engine coolant concentrations below 40% will  
decrease the corrosion protection characteristics of the engine  
coolant and may cause engine damage.  
Decreased engine coolant concentrations below 40% will  
decrease the freeze protection characteristics of the engine  
coolant and may cause engine damage.  
Refer to the chart on the coolant container to ensure the  
coolant concentration in your vehicle will provide adequate  
protection at the temperatures in which you drive.  
Vehicles driven year-round in non-extreme climates should use a 50/50  
mixture of engine coolant and distilled water for optimum cooling system  
and engine protection.  
What you should know about fail-safe cooling  
If the engine coolant supply is depleted, this feature allows the vehicle to  
be driven temporarily before incremental component damage is incurred.  
The “fail-safe” distance depends on ambient temperatures, vehicle load  
and terrain.  
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How fail-safe cooling works  
If the engine begins to overheat:  
The engine coolant temperature  
gauge will move to the red (hot)  
area.  
The “Check Engine” indicator  
light will illuminate.  
If the engine reaches a preset  
over-temperature condition, the engine will automatically switch to  
alternating cylinder operation. Each disabled cylinder acts as an air  
pump and cools the engine.  
When this occurs the vehicle will still operate. However:  
The engine power will be limited.  
The air conditioning system will be disabled.  
Continued operation will increase the engine temperature:  
The engine will completely shut down.  
Steering and braking effort will increase.  
Once the engine temperature cools, the engine can be re-started. Take  
your vehicle to an authorized dealer as soon as possible to minimize  
engine damage.  
When fail-safe mode is activated  
You have limited engine power when in the fail-safe mode, so drive the  
vehicle with caution. The vehicle will not be able to maintain high speed  
operation and the engine will run rough. Remember that the engine is  
capable of completely shutting down automatically to prevent engine  
damage, therefore:  
1. Pull off the road as soon as safely possible and turn off the engine.  
2. Arrange for the vehicle to be taken to an authorized dealer.  
3. If this is not possible, wait a short period for the engine to cool.  
4. Check the coolant level and replenish if low.  
Never remove the coolant reservoir cap while the engine is  
running or hot.  
5. Restart the engine and take your vehicle to an authorized dealer.  
Driving the vehicle without repairing the engine problem  
increases the chance of engine damage. Take your vehicle to an  
authorized dealer as soon as possible.  
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