Engine Coolant Check - Lincoln NAVIGATOR 2017 Owner's Manual

Message Action and description
If the instrument cluster
displays one of the following
messages, repeat the
process.
Not Reset
Reset Cancelled

ENGINE COOLANT CHECK

WARNINGS
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.
Do not put coolant in the windshield
washer fluid reservoir. If sprayed on
the windshield, coolant could make it difficult
to see through the windshield.
Navigator (TB5) Canada/United States of America, enUSA, Edition date: 201712, Second Printing
Maintenance
WARNINGS
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
you loosen the cap slightly.
Do not add coolant further than the
MAX mark.
When the engine is cold, check the
concentration and level of the coolant at the
intervals listed in the scheduled maintenance
information. See Scheduled Maintenance
(page 454).
Note: Make sure that the coolant level is
between the MIN and MAX marks on the
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the MAX mark.
265
Maintain coolant concentration within 48%
to 50%, which equates to a freeze point
between -30°F (-34°C) and -34°F (-37°C).
Coolant concentration should be checked
using a refractometer. We do not recommend
the use of hydrometers or coolant test strips
for measuring coolant concentration.
Adding Coolant
WARNING
Never remove the coolant reservoir
cap when the engine is running or hot.
Note: Automotive fluids are not
interchangeable. Take care not to put
engine coolant in the windshield washer fluid
reservoir or windshield washer fluid in the
engine coolant reservoir.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty.