cooling LINCOLN MKZ 2010 User Guide

•Add Motorcraft Premium Gold Engine Coolant or equivalent
meeting Ford specification WSS-M97B51-A1.Refer to
Maintenance product specifications and capacitiesin this chapter.
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, or DEX-COOLbrand with the
factory-filled coolant.Mixing Motorcraft Specialty Orange Engine
Coolant or any orange-colored extended life product such as
DEX-COOLbrand 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.
WARNING: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.
Note: The process stated below should only be used when the
coolant level is low and additional coolant is needed. If the
coolant system has been drained in any way, you must refer to
the Cooling section of the Workshop Manual.
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 (an opaque plastic bottle).
Slowly turn cap counterclockwise (left) until pressure begins to release.
2010 MKZ(378)
Owners Guide, 1st Printing
USA(fus)
Maintenance and Specifications
282

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.
6. Reinstall the cap on the coolant reservoir. Turn the cap until it is
tightly installed to prevent coolant loss.
After any coolant has been added, check the coolant concentration.
Refer to theChecking engine coolantsection. 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
toMaintenance product specifications and capacitiesin this chapter.
Fill your engine coolant reservoir as outlined inAdding engine coolant
in this section.
2010 MKZ(378)
Owners Guide, 1st Printing
USA(fus)
Maintenance and Specifications
283

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.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the H (hot) area.
2010 MKZ(378)
Owners Guide, 1st Printing
USA(fus)
Maintenance and Specifications
284

fail-safe cooling .......................284
idle speed control ...................278
lubrication specifications .......302
refill capacities ........................302
service points ..........................272
starting after a collision .........233
Engine block heater .................201
Engine oil ..................................274
change oil soon warning,
message center .......................274
checking and adding ..............274
dipstick ....................................274
filter, specifications ........277, 301
recommendations ...................277
refill capacities ........................302
specifications ..........................302
Event data recording ....................7
Exhaust fumes ..........................201
F
Fail safe cooling ........................284
Floor mats ...................................87
Fluid capacities .........................302
Fog lamps ....................................54
Four-Wheel Drive vehicles
driving off road .......................226
Fuel ............................................286
calculating fuel
economy ............................20, 291
cap ...........................................288
capacity ...................................302
choosing the right fuel ...........289
comparisons with EPA fuel
economy estimates .................294
detergent in fuel .....................290
filler funnel .............................290
filling your vehicle with
fuel ...........................286, 288, 291filter, specifications ........285, 301
fuel pump shut-off switch .....233
improving fuel economy ........291
octane rating ...................289, 305
quality ......................................289
running out of fuel .........248, 290
safety information relating to
automotive fuels .....................286
Fuel pump shut-off switch .......233
Fuses ..................................234–235
G
Gas cap (see Fuel cap) ............288
Gas mileage (see Fuel
economy) ...................................291
Gauges .........................................17
H
Hazard flashers .........................233
Headlamps ...................................53
aiming ........................................56
autolamp system .......................53
bulb specifications ....................59
daytime running lights .............54
flash to pass ..............................55
high beam .................................55
replacing bulbs .........................61
turning on and off ....................53
Heating
heating and air conditioning
system .................................45, 48
Homelink wireless control
system ..........................................83
Hood ..........................................271
I
Ignition ...............................198, 305
2010 MKZ(378)
Owners Guide, 1st Printing
USA(fus)
Index
315