2018 JEEP COMPASS engine

ENGINE COMPARTMENT
1.4L Engine
1 — Brake Fluid Reservoir 6 — Washer Fluid Reservoir
2 — Engine Oil Dipstick 7 — Battery
3 — Engine Oil Fill Cap 8 — Coolant Pressure Cap
4 — Battery 9 — Coolant Pressure Bottle
5 — Power Distribution Center (Fuses) 10 — Engine Air Cleaner Filter
SERVICING AND MAINTENANCE
230

2.0L Diesel Engine
1 — Brake Fluid Reservoir 6 — Battery
2 — Engine Oil Fill 7— Engine Coolant Pressure Cap
3 — Battery 8 — Engine Coolant Pressure Bottle
4 — Power Distribution Center (Fuses) 9 — Engine Oil Dipstick
5 — Washer Fluid Reservoir 10 — Engine Air Cleaner Filter
231

1.6L Diesel Engine
1 — Brake Fluid Reservoir 6 — Battery
2 — Engine Oil Fill Cap 7 — Coolant Pressure Cap
3 — Battery 8 — Coolant Pressure Bottle
4 — Power Distribution Center (Fuses) 9 — Engine Oil Dipstick
5 — Washer Fluid Reservoir 10 —Engine Air Cleaner Filter
SERVICING AND MAINTENANCE
232

Checking Oil Level
To assure proper engine lubrication, the en-
gine oil must be maintained at the correct
level. Check the oil level at regular intervals,
such as once a month or before a long trip.
The best time to check the engine oil level is
approximately five minutes after a fully
warmed engine is shut off. Do not check oil
level before starting the engine after it has sat
overnight. Checking engine oil level when the
engine is cold will give you an incorrect read-
ing.
Checking the oil while the vehicle is on level
ground, and approximately five minutes after
a fully warmed engine is shut off, will improve
the accuracy of the oil level readings. Main-
tain the oil level between the range markings
on the dipstick. The safe range is indicated
by a crosshatch zone. Adding 1 quart (0.9 Li-
ters) of oil when the reading is at the low end
of the indicated range will result in the oil
level at the full end of the indicator range.
CAUTION!
• Overfilling or underfilling will cause oil
aeration, or loss of oil pressure. This
could damage your engine.
• Never use Non-Detergent Oil or Straight
Mineral Oil in the engine or damage may
result.
Adding Washer Fluid
The fluid reservoir is located in the front of
the engine compartment. Be sure to check
the fluid level in the reservoir at regular
intervals. Fill the reservoir with windshield
washer solvent (not radiator antifreeze) and
operate the system for a few seconds to flush
out the residual washer fluid.
When refilling the washer fluid reservoir, take
some washer fluid, apply it to a cloth or towel,
and wipe clean the wiper blades; this will
help blade performance.To prevent freeze-up of your windshield
washer system in cold weather, select a solu-
tion or mixture that meets or exceeds the
temperature range of your climate. This rat-
ing information can be found on most washer
fluid containers.
WARNING!
Commercially available windshield washer
solvents are flammable. They could ignite
and burn you. Care must be exercised
when filling or working around the washer
solution.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-
free battery. You will never have to add water,
nor is periodic maintenance required.
WARNING!
• Battery fluid is a corrosive acid solution
and can burn or even blind you. Do not
allow battery fluid to contact your eyes,
skin, or clothing. Do not lean over a
battery when attaching clamps. If acid
233

WARNING!
mable and can explode, injuring you.
Other unapproved refrigerants or lubri-
cants can cause the system to fail, re-
quiring costly repairs. Refer to Warranty
Information Book, located in your own-
er’s information kit, for further warranty
information.
• The air conditioning system contains re-
frigerant under high pressure. To avoid
risk of personal injury or damage to the
system, adding refrigerant or any repair
requiring lines to be disconnected
should be done by an experienced tech-
nician.
CAUTION!
Do not use chemical flushes in your air
conditioning system as the chemicals can
damage your air conditioning components.
Such damage is not covered by the New
Vehicle Limited Warranty.
A/C Air Filter
See your authorized dealer for service.
Wiper Blades
Clean the rubber edges of the wiper blades
and the windshield and rear window periodi-
cally with a sponge or soft cloth and a mild
nonabrasive cleaner. This will remove accu-
mulations of salt, waxes, or road film, and
help reduce streaking and smearing.
Operation of the wipers on dry glass for long
periods may cause deterioration of the wiper
blades. Always use washer fluid when using
the wipers to remove salt or dirt from a dry
windshield or rear window.
Avoid using the wiper blades to remove frost
or ice from the windshield or rear window.
Make sure that they are not frozen to the glass
before turning them on to avoid damaging the
blade. Keep the wiper blade out of contact
with petroleum products such as engine oil,
gasoline, etc.NOTE:
Life expectancy of wiper blades varies de-
pending on geographical area and frequency
of use. Poor performance of blades may be
present with chattering, marks, water lines or
wet spots. If any of these conditions are
present, clean the wiper blades or replace as
necessary.
Cooling System
WARNING!
• You or others can be badly burned by hot
engine coolant (antifreeze) or steam
from your radiator. If you see or hear
steam coming from under the hood, do
not open the hood until the radiator has
had time to cool. Never open a cooling
system pressure cap when the radiator or
coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when
the hood is raised. The fan starts auto-
matically and may start at any time,
whether the engine is running or not.
235

WARNING!
• When working near the radiator cooling
fan, disconnect the fan motor lead or
turn the ignition to the OFF mode. The
fan is temperature controlled and can
start at any time the ignition is in the ON
mode.
Coolant Checks
Check engine coolant (antifreeze) protection
every 12 months (before the onset of freezing
weather, where applicable). If the engine
coolant (antifreeze) is dirty or rusty in appear-
ance, the system should be drained, flushed
and refilled with fresh engine coolant (anti-
freeze). Check the front of the A/C condenser
for any accumulation of bugs, leaves, etc. If
dirty, clean by gently spraying water from a
garden hose vertically down the face of the
condenser.
Brake System
In order to assure brake system performance,
all brake system components should be in-
spected periodically. Refer to the “Mainte-
nance Plan” in this section for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure
and possibly a collision. Driving with your
foot resting or riding on the brake pedal
can result in abnormally high brake tem-
peratures, excessive lining wear, and pos-
sible brake damage. You would not have
your full braking capacity in an emergency.
Brake Master Cylinder
The fluid in the master cylinder should be
checked when performing under hood ser-
vices or immediately if the “Brake Warning
Light” is illuminated.
Be sure to clean the top of the master cylin-
der area before removing the cap. If neces-
sary, add fluid to bring the fluid level up to
the requirements described on the brakefluid reservoir. With disc brakes, fluid level
can be expected to fall as the brake pads
wear. Brake fluid level should be checked
when pads are replaced. However, low fluid
level may be caused by a leak and a checkup
may be needed.
Use only manufacturer's recommended
brake fluid. Refer to “Fluids And Lubricants”
in “Technical Specifications” for further
information.
WARNING!
• Use only manufacturer's recommended
brake fluid. Refer to “Fluids And Lubri-
cants” in “Technical Specifications” for
further information. Using the wrong
type of brake fluid can severely damage
your brake system and/or impair its per-
formance. The proper type of brake fluid
for your vehicle is also identified on the
original factory installed hydraulic mas-
ter cylinder reservoir.
• To avoid contamination from foreign
matter or moisture, use only new brake
fluid or fluid that has been in a tightly
SERVICING AND MAINTENANCE
236

CAUTION!
Proper operation of four-wheel drive ve-
hicles depends on tires of equal size, type
and circumference on each wheel. Any
difference in tire size can cause damage to
the power transfer unit. Tire rotation
schedule should be followed to balance
tire wear.
STORING THE VEHICLE
If the vehicle should remain stationary for
more than a month, observe the following
precautions:
• Park your vehicle in a covered, dry and
possibly airy location the windows open
slightly.
• Check that the Electric Park Brake is not
engaged.
• Disconnect the negative (-) terminal from
the battery post and be sure that the battery
is fully charged. During storage check bat-
tery charge quarterly.• If you do not disconnect the battery from
the electrical system, check the battery
charge every 30 days.
• Clean and protect the painted parts by
applying protective waxes.
• Clean and protect polished metal parts by
applying protective waxes.
• Apply talcum powder to the front and rear
wiper blades and leave raised from the
glass.
• Cover the vehicle with an appropriate cover
taking care not to damage the painted sur-
face by dragging across dirty surfaces. Do
not use plastic sheeting which will not
allow the evaporation of moisture present
on the surface of the vehicle.
• Inflate the tires at a pressure of +7.25 psi
(+0.5 bar) higher than recommended on
the tire placard and check it periodically.
• Do not drain the engine cooling system.
• Whenever you leave the vehicle is station-
ary for two weeks or more, run idle the
engine for approximately five minutes, withthe air conditioning system on and high fan
speed. This will ensure a proper lubrication
of the system, thus minimizing the possi-
bility of damage to the compressor when
the vehicle is put back into operation.
NOTE:
When the vehicle has not been started or
driven for at least 30 days, an Extended Park
Start Procedure is required to start the ve-
hicle. Refer to “Starting The Engine” in
“Starting And Operating” for further
information.
CAUTION!
Before removal of the positive and nega-
tive terminals to the battery, wait at least a
minute with ignition switch in the OFF
position and close the driver’s door. When
reconnecting the positive and negative ter-
minals to the battery be sure the ignition
switch is in the OFF position and the
driver’s door is closed.SERVICING AND MAINTENANCE
246

TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA.......254
Vehicle Identification Number......254
WHEEL AND TIRE TORQUE SPECI-
FICATIONS................255
Torque Specifications...........255
FUEL REQUIREMENTS — GASOLINE
ENGINE..................255
1.4L Turbo Gasoline Engine........255
Ethanol....................256
Materials Added To Fuel.........256
Fuel System Cautions...........256
Carbon Monoxide Warnings.......257FUEL REQUIREMENTS — DIESEL
ENGINE...................257
Diesel Engine................257
FLUID CAPACITIES..........258
FLUIDS AND LUBRICANTS. . . .259
Engine.....................259
Chassis....................259
TECHNICAL SPECIFICATIONS
253