2014 Hyundai Sonata maintenance

7-32
Maintenance
For mixture percentage, refer to the
following table.
Information
If in doubt about the mix ratio, a
50% water and 50% antifreeze mix
is the easiest to mix together as it
will be the same quantity of each. It
is suitable to use for most temper-
ature ranges of -35°C (-31°F) and
higher.
Changing the coolant
We recommend that the coolant be
replaced by an authorized HYUNDAI
dealer.
i
AmbientTemperature
Mixture Percentage (volume)
Antifreeze Water
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
Coolant
•Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
•Radiator coolant can severely
obscure visibility when
sprayed on the windshield
and may cause loss of vehicle
control or damage to paint
and body trim.
WARNING
Put a thick cloth or fabric
around the radiator cap before
refilling the coolant in order to
prevent the coolant from over-
flowing into engine parts such
as generator.
CAUTION

7-33
7
Maintenance
BRAKE/CLUTCH FLUID (IF EQUIPPED)
Checking the brake/clutch
fluid level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake/clutch fluid, clean
the area around the reservoir cap
thoroughly to prevent brake/clutch
fluid contamination.
If the level is low, add fluid to the
MAX level. The level will fall with
accumulated mileage. This is a nor-
mal condition associated with the
wear of the brake linings.
If the fluid level is excessively low, we
recommend that the system be
checked by an authorized HYUNDAI
dealer.
Information
Use only the specified brake/clutch
fluid. (Refer to “Recommended
lubricants and capacities” in sec-
tion 8.)
Never mix different types of fluid.
Before removing the brake/clutch
filler cap, read the warning on the
cap.
NOTICE
i
OLF074008
In the event the brake/clutch
system requires frequent addi-
tions of fluid, we recommend
that the system be inspected by
an authorized HYUNDAI dealer.
WARNING
Clean filler cap before remov-
ing. Use only DOT3 or DOT4
brake/clutch fluid from a sealed
container.
WARNING

7-34
Maintenance
When changing and adding
brake/clutch fluid, handle it
carefully. Do not let it come in
contact with your eyes. If brake/
clutch fluid should come in con-
tact with your eyes, immediately
flush them with a large quantity
of fresh tap water. Have your
eyes examined by a doctor as
soon as possible.
WARNING
Do not allow brake/clutch fluid
to contact the vehicle's body
paint, as paint damage will
result. Brake/clutch fluid, which
has been exposed to open air
for an extended time should
never be used as its quality can-
not be guaranteed. It should be
disposed of properly. Don't put
in the wrong kind of fluid.
A few drops of mineral-based
oil, such as engine oil, in your
brake/clutch system can dam-
age brake/clutch system parts.
CAUTION

7-35
7
Maintenance
WASHER FLUID
Checking the washer fluid
level
The reservoir is translucent so that
you can check the level with a quick
visual inspection.
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary.
Plain water may be used if washer
fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
OLF074009N
Coolant
•Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
•Radiator coolant can severely
obscure visibility when sprayed
on the windshield and may
cause loss of vehicle control or
damage to paint and body trim.
•Windshield Washer fluid
agents contain some amounts
of alcohol and can be flamma-
ble under certain circum-
stances. Do not allow sparks
or flame to contact the washer
fluid or the washer fluid reser-
voir. Damage to the vehicle or
occupants could occur.
•Windshield washer fluid is
poisonous to humans and
animals. Do not drink and
avoid contacting windshield
washer fluid. Serious injury or
death could occur.
CAUTION

7-36
Maintenance
PARKING BRAKE
Checking the parking brake
Type A
Check whether the stroke is within
specification when the parking brake
pedal is depressed with 20 kg (44 lb,
196N) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade. If the
stroke is more or less than specified,
we recommend that the system be
serviced by an authorized HYUNDAI
dealer.
Stroke : 3 notch
Type B
Check the stroke of the parking
brake by counting the number of
“clicks’’ heard while fully applying it
from the released position. Also, the
parking brake alone should securely
hold the vehicle on a fairly steep
grade. If the stroke is more or less
than specified, we recommend that
the system be serviced by an author-
ized HYUNDAI dealer.
Stroke : 5~6 “clicks’’ at a force of
20 kg (44 lbs, 196 N).
ODH053142
OLF054047

7-37
7
Maintenance
AIR CLEANER
Filter replacement
The air cleaner filter can be cleaned
for inspection using compressed air.
Do not attempt to wash or to rinse it,
as water will damage the filter.
If soiled, the air cleaner filter must be
replaced.
1. Remove the air cleaner filter cover.
2. Wipe the inside of the air cleaner.
3. Pull down the lever to the UNLOCK
position.OLF074010
OLF074011OLF074012

7-38
Maintenance
4. Replace the air cleaner filter. 5. Pull up the lever(1) to the LOCK
position.
6. Install the cover and make sure
the inner hooks(2) to be inserted
to holes(3).
7. Check if the cover is firmly
installed.
Information
If the vehicle is operated in
extremely dusty or sandy areas,
replace the element more often
than the usual recommended
intervals (refer to “Maintenance
Under Severe Usage Conditions”
in this chapter).
•Do not drive with the air cleaner
filter removed. This will result in
excessive engine wear.
•When removing the air cleaner
filter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
•Use HYUNDAI genuine parts,
use of non-genuine parts could
damage the air flow sensor.
NOTICE
i
OLF074013OLF074101K

7-39
7
Maintenance
CLIMATE CONTROL AIR FILTER
Filter inspection
If the vehicle is operated in the
severely air-polluted cities or on
dusty rough roads for a long period,
it should be inspected more fre-
quently and replaced earlier. When
you, the owner, replace the climate
control air filter, replace it performing
the following procedure, and be care-
ful to avoid damaging other compo-
nents.
Replace the filter according to the
Maintenance Schedule.
Install a new climate control air filter
in the correct direction with the
arrow symbol(↓) facing downwards.
Otherwise, the climate control
effects may decrease, possibly
with a noise.
Filter replacement
1.With the glove box open, remove
the stoppers on both sides.
2.Open the glove box and remove
the support strap (1).
3.Remove the climate control air fil-
ter case while pressing the lock on
the left side of the cover.
4.Replace the climate control air fil-
ter.
5.Reassemble in the reverse order of
disassembly.
NOTICE
OLF074015
OLF074014
OLF074016
OLF074107K