2018 FORD MUSTANG air conditioning

Protected Component
Fuse Rating
Fuse or Relay
Number
Vehicle power 3.
15A 3
42
Not used.
—
43
Vehicle power 4.
15A 3
44
Ignition coils (GT350 only).
30A 3
Not used.
—
45
Differential pump (Shelby).
20A 2
46
Not used.
—
47
Fuel pump #2 (Shelby).
30A 2
48
Fuel pump.
30A 2
49
Steering column lock relay.
—
50
Not used.
—
51
Horn relay.
—
52
Cigar lighter.
20A 2
53
Auxiliary power point.
20A 2
54
Electronic fan 2.
25A 2
55
Not used.
—
56
Air conditioning clutch relay.
—
57
Not used.
—
58
Exhaust valves relay.
—
59
Powertrain control module.
5A 3
60
Not used.
—
61
Anti-lock brakes run-start switch.
5A 3
62
Not used.
—
63
221
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Electronic power assist steering.
5A 3
64
Not used.
—
65
Blind spot information system.
5A 3
66
Rear view camera.
Air conditioning compressor relay coils.
Vehicle dynamics module.
Not used.
—
67
Headlamp leveling switch.
10A 3
68
Auxiliary power point relay.
—
69
Heated exterior mirrors.
10A 3
70
Not used.
—
71
Rain sensor module.
5A 3
72
Not used.
—
73
Mass air flow sensor (except 2.3L).
5A 3
74
Not used.
—
75
Rear window defroster relay.
—
76
Electronic cooling fan 2 relay.
—
77
Run/Start relay.
—
78
Not used.
—
79
Windshield wiper relay.
—
80
Starter motor solenoid relay.
—
81
Powertrain control module relay.
—
82
Not used.
—
83
Not used.
—
84
Not used.
—
85
Not used.
—
86
222
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Fuses

Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60%
provides improved freeze point
protection. Coolant concentrations
above 60% decrease the overheat
protection characteristics of the
coolant and may cause engine
damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• Coolant concentrations below 40%
decrease the freeze and corrosion
protection characteristics of the
coolant and may cause engine
damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. Add
prediluted coolant approved to the correct
specification. See Capacities and
Specifications (page 290).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
How Fail-Safe Cooling Works If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone: A warning lamp illuminates and
a message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating
cylinder operation. Each disabled cylinder
acts as an air pump and cools the engine.
When this occurs, your vehicle still
operates, however:
• Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
When Fail-Safe Mode Is Activated WARNINGS
Fail-safe mode is for use during
emergencies only. Operate your
vehicle in fail-safe mode only as long
as necessary to bring your vehicle to rest
in a safe location and seek immediate
repairs. When in fail-safe mode, your
vehicle will have limited power, will not be
able to maintain high-speed operation, and
may completely shut down without
warning, potentially losing engine power,
power steering assist, and power brake
assist, which may increase the possibility
of a crash resulting in serious injury. Do not remove the coolant reservoir
cap when the cooling system is hot.
Wait 10 minutes for the cooling
system to cool down. Cover the coolant
reservoir cap with a thick cloth to prevent
the possibility of scalding and slowly
remove the cap. Failure to follow this
instruction could result in personal injury. 236
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Maintenance

Your vehicle has limited engine power
when in the fail-safe mode, drive your
vehicle with caution. Your vehicle does not
maintain high-speed operation and the
engine may operate poorly.
Remember that the engine is capable of
automatically shutting down to prevent
engine damage. In this situation:
1. Pull off the road as soon as safely
possible and switch the engine off.
2. If you are a member of a roadside assistance program, we recommend
that you contact your roadside
assistance service provider.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level. If the coolant level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you can re-start the engine. Have your
vehicle checked as soon as possible to
minimize engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage.
Engine Coolant Temperature
Management (If Equipped) 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. 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. At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
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.
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:
1. Stop your vehicle as soon as it is safe
to do so. Fully apply the parking brake,
shift into park (P) or neutral (N).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. After
several minutes, if the temperature
does not drop, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
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.
237
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Maintenance

CAPACITIES AND SPECIFICATIONS - 2.3L ECOBOOST™
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure.
Only qualified personnel should service the air conditioning refrigerant system.
Opening the air conditioning refrigerant system can cause personal injury.
Capacity
Item
5.7 qt (5.4 L)
Engine oil (with oil filter).
9.5 qt (8.96 L)
Engine coolant.
Between MIN/MAX on brake fluid reservoir
Brake fluid.
3.2 pt (1.5L)
Rear axle fluid.
3.28 fl oz (97 ml)
Rear axle friction modifier.
12.7 qt (12 L)1
Automatic transmission fluid.
2.7 qt (2.6 L)1
Manual transmission fluid.
Fill as required
Windshield washer fluid.
15.5 gal (58.8 L)
Fuel tank.
1.2 lb (0.54 kg)
A/C Refrigerant.
3.4 fl oz (100 ml)
A/C Refrigerant Compressor Oil.
1 Approximate dry fill capacity. Actual amount may vary during fluid changes.
295
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Capacities and Specifications

Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure.
Only qualified personnel should service the air conditioning refrigerant system.
Opening the air conditioning refrigerant system can cause personal injury.
Capacity
Item
10.0 qt (9.5 L)
Engine oil (with oil filter).
13.6 qt (12.88 L)
Engine coolant.
15.2 qt (14.4 L)
Engine coolant with Track Pack (If
equipped).
Between MIN/MAX on brake fluid reservoir
Brake fluid.
3.2 pt (1.5L)
Rear axle fluid.
3.28 fl oz (97 ml)
Rear axle friction modifier.
12.7 qt (12 L)1
Automatic transmission fluid.
2.7 qt (2.6 L)1
Manual transmission fluid.
Fill as required
Windshield washer fluid.
16.0 gal (60.6 L)
Fuel tank.
1.2 lb (0.54 kg)
A/C Refrigerant.
4.1 fl oz (120 ml)
A/C Refrigerant Compressor Oil.
1 Approximate dry fill capacity. Actual amount may vary during fluid changes.
300
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Capacities and Specifications

Description
Item
Callout
Touch up or down to adjust the temperature.
Left-hand front seat
temperature:
A
Touch the heated steering wheel icon to switch the
heated steering wheel on and off (if equipped).
Heated steering
wheel:
B
A pop up appears on the screen to display the defrost
options.
Defrost
C
Touch the button to maximizedefrosting. Outside air flows
through the windshield vents,
the fan automatically adjusts to the highest speed and the
temperature dial returns to the
MAX Defrost:
full heat position. You can usethis setting to defog or clear a thin covering of ice from thewindshield. The heated rear
window also automatically turns
on when you select MAX Defrost.
Touch to clear the windshield of fog and thin ice. Touch again to return to the previous airflowselection. When on, defrost
provides outside air to reduce
window fogging and distributes air through the windshield
defroster vents and demister vents.
Defrost
Note: To prevent window
fogging, you cannot select recir- culated air when Defrost is on.
Touch the button to switch on automatic operation.
Select the desired temperature using the temperature
control. The system adjusts fan speed, air distribution,
air conditioning operation, and selects outside air or
recirculated air to heat or cool the vehicle in order to
maintain the desired temperature.
AUTO
D
Touch the button to switch the system on and off.
Switching off the climate control system prevents
outside air from entering the vehicle.
Power
E
387
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing SYNC™ 3
(If Equipped)

Description
Item
Callout
This button lights up when the passenger controls are
active. To switch the dual zone operation off and link
the passenger temperature to the driver temperature,
touch the DUAL button to switch it off.
DUAL
F
Touch up or down to adjust the temperature.
Right-hand front seat
temperature
G
Touch up or down to increase or decrease the volume
of air circulated in your vehicle.
Fan speed:
H
A popup appears on the screen to display the air
conditioning options.
A/C
I
Touch to cool your vehicle with
recirculated air. Touch again for
normal A/C operation. MAX A/C distributes air through instru-
ment panel vents and may help
reduce odors from entering your vehicle. MAX A/C is more
economical and efficient than normal A/C mode.
MAX A/C
Touch to switch the air condi-
tioning on or off. Use A/C with recirculated air to improve
cooling performance and effi-
ciency. A/C engages automatic- ally in MAX A/C, defrost and footwell/defrost
A/C
Touch to switch the recirculatedair on or off which may reducethe amount of time needed to
cool down the interior and help
reduce odors from reaching the interior. Recirculated air also
Recirculated air:
engages automatically whenyou select MAX A/C. You can engage this manually in any
airflow mode except defrost. It may also turn off in all airflow modes except MAX A/C to reduce fog potential.
388
Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing SYNC™ 3 (If Equipped)