2018 DODGE DURANGO radiator

Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts, and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks. DO NOT REMOVE THE COOLANT
PRESSURE CAP WHEN THE COOLING SYSTEM IS HOT.
Cooling System — Drain, Flush And Refill
NOTE:Some vehicles require special tools to add coolant
properly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed to
be added to the system please contact your local autho-
rized dealer.
If the engine coolant (antifreeze) is dirty or contains visible
sediment, have an authorized dealer clean and flush with
OAT coolant (antifreeze) (conforming to MS.90032).
Refer to the “Maintenance Plan” in this section for the
proper maintenance intervals.
Selection Of Coolant
Refer to “Fluids And Lubricants” in “Technical Specifica-
tions” for further information. NOTE:
•
Mixing of engine coolant (antifreeze) other than speci-
fied Organic Additive Technology (OAT) engine coolant
(antifreeze), may result in engine damage and may
decrease corrosion protection. Organic Additive Tech-
nology (OAT) engine coolant is different and should not
be mixed with Hybrid Organic Additive Technology
(HOAT) engine coolant (antifreeze) or any “globally
compatible” coolant (antifreeze). If a non-OAT engine
coolant (antifreeze) is introduced into the cooling system
in an emergency, the cooling system will need to be
drained, flushed, and refilled with fresh OAT coolant
(conforming to MS.90032), by an authorized dealer as
soon as possible.
• Do not use water alone or alcohol-based engine coolant
(antifreeze) products. Do not use additional rust inhibi-
tors or antirust products, as they may not be compatible
with the radiator engine coolant and may plug the
radiator.
• This vehicle has not been designed for use with propyl-
ene glycol-based engine coolant (antifreeze). Use of
propylene glycolbased engine coolant (antifreeze) is not
recommended.
8
SERVICING AND MAINTENANCE 433

HOAT and OAT coolant are mixed in an emergency,
have a authorized dealer drain, flush, and refill with
OAT coolant (conforming to MS.90032) as soon as pos-
sible.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle/recovery tank if so equipped.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is over-
heated. Do not loosen or remove the cap to cool an
overheated engine. Heat causes pressure to build up
in the cooling system. To prevent scalding or injury,
do not remove the pressure cap while the system is
hot or under pressure.
• Do not use a pressure cap other than the one speci-
fied for your vehicle. Personal injury or engine
damage may result.
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is a regu-
lated substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children,
do not store ethylene glycol-based coolant in open contain-
ers or allow it to remain in puddles on the ground. If
ingested by a child or pet, seek emergency assistance
immediately. Clean up any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine OFF and cold, the level of the engine coolant
(antifreeze) in the bottle should be between the ranges
indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator/coolant pressure cap
unless checking for engine coolant (antifreeze) freeze point
or replacing coolant. Advise your service attendant of this.
As long as the engine operating temperature is satisfactory,
the coolant bottle need only be checked once a month.
8
SERVICING AND MAINTENANCE 435

When additional engine coolant (antifreeze) is needed to
maintain the proper level, only OAT coolant that meets the
requirements of FCA Material Standard MS.90032 should
be added to the coolant bottle. Do not overfill.
Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is normally
a result of moisture from rain, snow, or high humidity
accumulating on the radiator and being vaporized when
the thermostat opens, allowing hot engine coolant (anti-
freeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
• Do not overfill the coolant expansion bottle.
• Check the coolant freeze point in the radiator and in the
coolant expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks. •
Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion pro-
tection of your engine which contains aluminum com-
ponents.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Plan” in this section for the proper
maintenance intervals.
436 SERVICING AND MAINTENANCE

CAUTION!
•Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT) en-
gine coolant (antifreeze), may result in engine dam-
age and may decrease corrosion protection. Organic
Additive Technology (OAT) engine coolant is differ-
ent and should not be mixed with Hybrid Organic
Additive Technology (HOAT) engine coolant (anti-
freeze) or any “globally compatible” coolant (anti-
freeze). If a non-OAT engine coolant (antifreeze) is
introduced into the cooling system in an emergency,
the cooling system will need to be drained, flushed,
(Continued)
CAUTION! (Continued)
and refilled with fresh OAT coolant (conforming to
MS.90032), by an authorized dealer as soon as pos-
sible.
• Do not use water alone or alcohol-based engine
coolant (antifreeze) products. Do not use additional
rust inhibitors or antirust products, as they may not
be compatible with the radiator engine coolant and
may plug the radiator.
• This vehicle has not been designed for use with
propylene glycol-based engine coolant (antifreeze).
Use of propylene glycol-based engine coolant (anti-
freeze) is not recommended.
480 TECHNICAL SPECIFICATIONS

Anti-Lock Warning Light.....................163
Apple CarPlay ............................564
Arming System Security Alarm ...........................29
Assist, Hill Start .......................... .174
Audio Systems (Radio) .......................485
Auto Down Power Windows ..................103
Automatic Headlights ........................74
Automatic High Beams .......................74
Automatic Temperature Control (ATC) ............98
Automatic Transmission ..................262, 273
Adding Fluid .......................... .439
Fluid And Filter Change ...................439
Fluid Change .......................... .439
Fluid Level Check .....................438, 439
Fluid Type ..........................438, 481
Special Additives ........................ .438
Automatic Transmission Limp Home Mode ........278
Auxiliary Electrical Outlet (Power Outlet) .........128
Auxiliary Power Outlet ..................... .128
Axle Fluid ...............................481
Battery ...............................157, 416
Charging System Light ....................157
Keyless Key Fob Replacement ................19Belts, Seat
............................... .253
Blind Spot Monitoring .......................181
Body Mechanism Lubrication ..................425
B-Pillar Location .......................... .446
Brake Assist System ........................ .174
Brake Control System, Electronic ................173
Brake Fluid .......................... .437, 481
Brake System ..........................436, 471
Anti-Lock (ABS) ........................ .471
Fluid Check ............................437
Master Cylinder ........................ .437
Parking ...............................268
Warning Light .......................... .156
Brake/T ransmission

Interlock..................272
Bulb Replacement .......................372, 373
Bulbs, Light ............................. .256
Camera, Rear ............................ .337
Capacities, Fluid .......................... .477
Caps, Filler Oil (Engine) ........................ .414, 419
Radiator (Coolant Pressure) .................435
Carbon Monoxide Warning ................253, 476
Cargo Area Cover .......................111,112
Cargo Compartment .........................111
12
INDEX 575

Light.................................111
Luggage Carrier ........................ .133
Cargo Light ...............................111
Cargo Tie-Downs ...........................112
Car Washes ...............................465
Cellular Phone ............................547
Center High Mounted Stop Light ...............376
Chains, Tire ............................. .461
Changing A Flat Tire ........................441
Chart, Tire Sizing .......................... .442
Check Engine Light (Malfunction Indicator Light). . . .168
Checking Your Vehicle For Safety ...............252
Checks, Safety ............................ .252
Child Restraint ............................226
Child Restraints Booster Seats ............................230
Child Seat Installation .....................246
How To Stow An unused ALR Seat Belt ........242
Infant And Child Restraints .................228
Locating The LATCH Anchorages .............236
Lower Anchors And Tethers For Children .......232
Older Children And Child Restraints ...........229
Seating Positions ........................ .231
Child Safety Locks ..........................39
Clean Air Gasoline ........................ .474Cleaning
Wheels ............................... .460
Climate Control ............................85
Automatic ..............................86
Cold Weather Operation ..................... .267
Compact Disc (CD) Maintenance ................566
Compact Spare Tire ........................ .458
Contract, Service .......................... .570
Cooling Pressure Cap (Radiator Cap) ............435
Cooling System ............................432
Adding Coolant (Antifreeze) .................434
Coolant Level .......................... .435
Cooling Capacity ........................ .477
Disposal Of

Used Coolant ..................435
Drain, Flush, And Refill ....................433
Inspection ..........................432, 435
Points To Remember ..................... .436
Pressure Cap ............................435
Radiator Cap .......................... .435
Selection Of Coolant (Antifreeze) .......433, 477, 479
Corrosion Protection ........................464
Cruise Control (Speed Control) ..............289, 293
Cruise Light .......................... .165, 166
Cupholders .......................... .125, 126
Customer Assistance ........................568
576 INDEX

Sunroof...............................105
Tilt/Telescoping Steering Column ..............66
Windows ............................. .102
Power Seats Down ...............................44, 46
Forward ............................ .44, 46
Rearward ............................44, 46
Up .................................44, 46
Pregnant Women And Seat Belts ................207
Preparation For Jacking ..................... .387
Pretensioners Seat Belts ............................. .208
Radial Ply Tires ............................452
Radiator Cap (Coolant Pressure Cap) .............435
Radio Frequency General Information ................22, 27, 29, 38
Radio Operation .......................... .547
Radio Remote Controls ..................... .527
Rain Sensitive Wiper System ...................83
Rear Air Conditioning ........................95
Rear Axle (Differential) ..................... .439
Rear Camera ............................. .337
Rear Cross Path ............................187
Rear Cupholders .......................... .126Rear ParkSense System
...................313, 322
Rear Seats, Folding ..........................53
Rear Wiper/Washer ..........................84
Reclining Front Seats .........................42
Recreational Towing ........................ .355
Shifting Into Transfer Case Neutral (N) .........357
Shifting Out Of Transfer Case Neutral (N) .......360
Reformulated Gasoline .......................474
Refrigerant ...............................421
Release, Hood ............................ .108
Reminder, Seat Belt ........................ .200
Remote Control Starting System ...........................25
Remote Keyless Entry ........................18
Arm The Alarm ..........................30
Disarm The Alarm ........................30
Programming Additional Key Fobs ..........22,28
Remote
Sound System (Radio) Control ...........527
Remote Starting Exit Remote Start Mode .....................27
Uconnect Customer Programmable Features .....500
Uconnect Settings ........................500
Remote Starting System .......................25
Replacement Bulbs ........................ .372
Replacement Keys ........................22, 28
12
INDEX 583