SERVICING AND MAINTENANCE
224
1.6L Diesel Engine
1 — Brake Fluid Reservoir6 — Coolant Pressure Cap
2 — Engine Oil Fill Cap 7 — Coolant Pressure Bottle
3 — Battery 8 — Engine Oil Dipstick
4 — Power Distribution Center (Fuses) 9 — Engine Air Cleaner Filter
5 — Washer Fluid Reservoir
2020_JEEP_M6_UG_UK.book Page 224
225
(Continued)
Checking Oil Level
To assure proper engine lubrication, the
engine oil must be maintained at the correct
level. Check the oil level at regular intervals,
such as every fuel stop. The best time to
check the engine oil level is about five
minutes after a fully warmed up engine is
shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings.
There are three possible dipstick types,
Crosshatched zone.
Crosshatched zone marked SAFE.
Crosshatched zone marked with MIN at
the low end of the range and MAX at the
high end of the range.
Crosshatched zone marked with dimples
at the MIN and the MAX ends of the range.
NOTE:
Always maintain the oil level within the
crosshatch markings on the dipstick.
Adding 1 quart (1.0 liters) of oil when the
reading is at the low end of the dipstick
range will raise the oil level to the high end
of the range marking.
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 inter -
vals. 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.
WARNING!
Never smoke while working in the engine
compartment: gas and inflammable
vapors may be present, with the risk of
fire.
Be very careful when working in the
engine compartment when the engine is
hot: you may get burned. Do not get too
close to the radiator cooling fan: the
electric fan may start; danger of injury.
Scarves, ties and other loose clothing
might be pulled by moving parts.
CAUTION!
Be careful not to confuse the various
types of fluids while topping up: they are
not compatible with each other! Topping
up with an unsuitable fluid could
severely damage your car.
The oil level must never exceed the MAX
mark.
Always top up using engine oil of the
same specifications as that already in
the engine.
If the engine oil is being topped up, wait
for the engine to cool down before loos-
ening the filler cap, particularly for vehi -
cles with aluminium cap (if equipped).
WARNING: risk of burns!
Overfilling or underfilling the crankcase
will cause aeration or loss of oil pressure.
This could damage your engine.
CAUTION! (Continued)
2020_JEEP_M6_UG_UK.book Page 225
SERVICING AND MAINTENANCE
228
(Continued)
A/C Air Filter
See an 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
depending 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.
Exhaust System
The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
If you notice a change in the sound of the
exhaust system; or if the exhaust fumes can
be detected inside the vehicle; or when the
underside or rear of the vehicle is damaged;
have an authorized technician inspect the
complete exhaust system and adjacent body
areas for broken, damaged, deteriorated, or
mispositioned parts. Open seams or loose
connections could permit exhaust fumes to
seep into the passenger compartment. In
addition, have the exhaust system inspected
each time the vehicle is raised for lubrication
or oil change. Replace as required.
WARNING!
Exhaust gases can injure or kill. They
contain carbon monoxide (CO), which is
colorless and odorless. Breathing it can
make you unconscious and can eventu
-
ally poison you. To avoid breathing CO,
refer to “Safety Tips” in “Safety” for
further information.
A hot exhaust system can start a fire if
you park over materials that can burn.
Such materials might be grass or leaves
coming into contact with your exhaust
system. Do not park or operate your
vehicle in areas where your exhaust
system can contact anything that can
burn.
CAUTION!
The catalytic converter requires the use
of unleaded fuel only. Leaded gasoline
will destroy the effectiveness of the cata-
lyst as an emissions control device and
may seriously reduce engine perfor -
mance and cause serious damage to the
engine.
2020_JEEP_M6_UG_UK.book Page 228
SERVICING AND MAINTENANCE
230
(Continued)
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 expan-
sion 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.
Brake System
In order to assure brake system performance,
all brake system components should be
inspected periodically. Refer to the “Mainte -nance Plan” in this section for the proper
maintenance intervals.
Brake Master Cylinder
The fluid in the master cylinder should be
checked when performing under hood
services or immediately if the “Brake
Warning Light” is illuminated.
Be sure to clean the top of the master
cylinder area before removing the cap. If
necessary, add fluid to bring the fluid level
up to the requirements described on the
brake fluid 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!
Do not open hot engine cooling system.
Never add engine coolant (antifreeze)
when the engine is overheated. Do not
loosen or remove the cap to cool an over
-
heated 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 specified for your vehicle. Personal
injury or engine damage may result.
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
temperatures, excessive lining wear, and
possible brake damage. You would not
have your full braking capacity in an
emergency. 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
performance. The proper type of brake
fluid for your vehicle is also identified on
the original factory installed hydraulic
master cylinder reservoir.
To avoid contamination from foreign
matter or moisture, use only new brake
fluid or fluid that has been in a tightly
closed container. Keep the master
cylinder reservoir cap secured at all
times. Brake fluid in a open container
absorbs moisture from the air resulting
in a lower boiling point. This may cause
it to boil unexpectedly during hard or
prolonged braking, resulting in sudden
brake failure. This could result in a colli -
sion.
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TECHNICAL SPECIFICATIONS
254
FLUID CAPACITIES
Diesel fuel containing up to 7 % (V/V) Fatty Acid Methyl Esters (FAME) EN590 compliant fuel
Diesel fuel containing up to 10 % (V/V) Fatty Acid Methyl Esters (FAME) EN16734 compliant fuel
US Metric
Fuel (Approximate)
All Engines 15.9 Gallons60 Liters
AdBlue® (UREA) Fluid Tank 3.4 Gallons13 Liters
Engine Oil With Filter
1.4 Liter Gasoline Engine (SAE 0W-30 ACEA C2, FCA Material Standard
9.55535-GS1) 4.0 Quarts
3.8 Liters
1.6 Liter Diesel Engine Without AdBlue® (UREA) (SAE 0W-30 ACEA C2, FCA
Material Standard 9.55535-DS1 or MS.90047) 5.07 Quarts
4.8 Liters
1.6 Liter Diesel Engine With AdBlue® (SAE 0W-20 ACEA C2, FCA Material
Standard 9.55535–DSX) 5.07 Quarts
4.8 Liters
2.0 Liter Diesel Engine Without AdBlue® (UREA) (SAE 0W-30 ACEA C2, FCA
Material Standard 9.55535-DS1 or MS.90047) 4.43 Quarts
4.2 Liters
2.0 Liter Diesel Engine With AdBlue® (UREA) (SAE 0W-20 ACEA C2, FCA
Material Standard 9.55535–DSX) 4.43 Quarts
4.2 Liters
Fuel Icons What It Means
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255
FLUIDS AND LUBRICANTS
Engine
Your vehicle is equipped with an engine oil
that has been thoroughly developed and
tested in order to meet the requirements of
the Scheduled Servicing Plan. Constant use
of the prescribed lubricants guarantees the
fuel consumption and emission specifica-
tions. Lubricant quality is crucial for engine
operation and duration. If lubricants
conforming to the specific request are not
available, products that meet the indicated
specifications can be used to top up, in this
case optimal performance of the engine is
not guaranteed. Cooling System*
1.4 Liter Gasoline Engine (OAT FCA Material Standard MS.90032)
5.5 Quarts5.2 Liters
1.6 Liter Diesel Engine (OAT FCA Material Standard MS.90032) 6.45 Quarts6.1 Liters
2.0 Liter Diesel Engine (OAT FCA Material Standard MS.90032) 6.8 Quarts6.5 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
US Metric
2020_JEEP_M6_UG_UK.book Page 255
TECHNICAL SPECIFICATIONS
256Component
Fluid, Lubricant, or Genuine Part
Engine Coolant
We recommend you use PARAFLU UP Formula OAT (Organic Additive
Technology) or equivalent meeting the requirements of FCA Material
Standard MS.90032.
Engine Oil – 1.4L Gasoline Engine We recommend you use SELENIA DIGITEK P.E. or equivalent, SAE
0W-30 ACEA C2 Synthetic Engine Oil, meeting the requirements of
FCA Material Standard 9.55535-GS1.
Engine Oil – 1.6L / 2.0L Diesel Engine Without AdBlue® (UREA) For best performance and maximum protection under all types of operating conditions, the manufacturer recommends SELENIA WR
FORWARD engine oils, or equivalent, SAE 0W-30 that meet the
requirements of FCA Material Standard 9.55535-DS1 or MS.90047
and ACEA C2.
NOTE:
If lubricants compliant with the required specifications are not
available, products that comply with the minimum required char-
acteristics can be used for topping off; in this case optimal perfor -
mance of the engine is not guaranteed.
The use of products with specifications other than those indicated
above could cause damage to the engine not covered by the
warranty.
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257
Engine Oil – 1.6L / 2.0L Diesel Engine With AdBlue® (UREA) For best performance and maximum protection under all types ofoperating conditions, the manufacturer recommends SAE 0W-20
that meet the requirements of FCA Material Standard 9.55535-DSX
and ACEA C2.
NOTE:
If lubricants compliant with the required specifications are not
available, products that comply with the minimum required char-
acteristics can be used for topping off; in this case optimal perfor -
mance of the engine is not guaranteed.
The use of products with specifications other than those indicated
above could cause damage to the engine not covered by the
warranty.
Engine Oil Filter We recommend you use a Mopar Engine Oil Filter.
Spark Plugs – Gasoline Engines We recommend you use Mopar Spark Plugs.
Fuel Selection – 1.4L Gasoline Engine Minimum of 95 Research Octane Number (RON) specification
EN228
Fuel Selection – Diesel Engines Diesel fuel conforming to the European specification EN590
Additive For Diesel Emissions AdBlue® (UREA) AdBlue® (Urea-Water Solution) According To DIN 70 070 and ISO
22241-1
ComponentFluid, Lubricant, or Genuine Part
2020_JEEP_M6_UG_UK.book Page 257