radiator cap HYUNDAI IX35 2014 Service Manual

Maintenance
16
7
ENGINE COOLANT
Changing the engine oil and filter
We recommend that the engine oil and
filter be replaced by a HYUNDAI autho-
rised repairer. The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant concentration level at least once
a year, at the beginning of the winter sea-
son, and before travelling to a colder cli-
mate.
Checking the coolant level
WARNING
Removing radiator cap
 Never attempt to remove the radi- ator cap whilst the engine is
operating or hot. Doing so mightlead to cooling system and
engine damage and could result
in serious personal injury fromescaping hot coolant or steam.
 Turn the engine off and wait until it cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop.
(Continued)
WARNING
Prolonged and repeated contact
with used engine oils may result in
serious skin disorders including
dermatitis and cancer. Avoid con-
tact with skin as far as possible and
always wash thoroughly after any
contact. Keep used oils out of
reach of children. It is illegal to pol-
lute drains, water courses and soil.
Use only authorised waste collec-
tion facilities including civic ameni-
ty sites and garages for the dispos-
al of used oil and oil filters. If in
doubt, contact the local authority
for disposal instructions.
EL(FL) UK 7.QXP 8/5/2013 7:02 PM Page 16

717
Maintenance
Check the condition and connections of all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F (MAX) and L (MIN) marks on
the side of the coolant reservoir when theengine is cool.
If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F (MAX), but do not overfill. If fre-
quent coolant refill is required, we rec-
ommend that the system be inspected by
a HYUNDAI authorised repairer.
OLM079006
(Continued)Step back whilst the pressure isreleased from the cooling sys-
tem. When you are sure all thepressure has been released,
press down on the cap, using a
thick towel, and continue turning
counterclockwise to remove it.
 Even if the engine is not operat- ing, do not remove the radiatorcap or the drain plug whilst the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.WARNING
The electric motor (cool-
ing fan) is controlled byengine coolant tempera-
ture, refrigerant pres-
sure and vehicle speed.
It may sometimes operate evenwhen the engine is not running.
Use extreme caution when working
near the blades of the cooling fan
so that you are not injured by a
rotating fan blades. As the engine
coolant temperature decreases, the
electric motor will automatically
shut off. This is a normal condition.
If your vehicle is equipped with
GDI, the electric motor (cooling fan)
may operate until you disconnect
the nagative battery cable.
EL(FL) UK 7.QXP 8/5/2013 7:02 PM Page 17

Maintenance
18
7
Recommended engine coolant
 When adding coolant, use only deion-
ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
 The engine in your vehicle has alumi
-num engine parts and must be protect-
ed by an ethylene-glycol-based coolant
to prevent corrosion and freezing.
 DO NOT USE alco hol or methanol
coolant or mix them with the specifiedcoolant.
 Do not use a solution that contains more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution. For mixture percentage, refer to the fol-
lowing table.
WARNING
Radiator cap
Do not remove the radiator cap when the engine and radiator are
hot. Scalding hot coolant and
steam may blow out under pres-
sure causing serious injury.
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OLM072007-1
EL(FL) UK 7.QXP 8/5/2013 7:02 PM Page 18

719
Maintenance
Changing the coolant
We recommend that the coolant be
replaced by a HYUNDAI authorised
repairer.Checking the brake/clutch fluid
level
Check the fluid level in the reservoir peri-
odically. The fluid level should be
between MAX (Maximum) and MIN
(Minimum) 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
(Maximum) level. The level will fall with
accumulated mileage. This is a normal
condition associated with the wear of the
brake linings and/or clutch disc (ifequipped).If the fluid level is excessively low, we
recommend that the brake system be
checked by a HYUNDAI authorised
repairer.
Use only the specified brake/clutch fluid.
(Refer to “Recommended lubricants orcapacities” in section 8.)
Never mix different types of fluid.
WARNING - Loss of brake fluid
In the event the brake system
requires frequent additions of fluid,we recommend that the system be
inspected by a HYUNDAI autho-
rised repairer.
OLM079008R
CAUTION
Put a thick cloth or fabric around the radiator cap before refilling thecoolant in order to prevent the
coolant from overflowing intoengine parts such as generator.
WARNING - Coolant
 Do not use radiator coolant or anti
-freeze in the washer fluid reservoir.
 Radiator coolant can severely obscure visibility when sprayed
on the windscreen and may
cause loss of vehicle control or
damage to paint and body trim.
BRAKE/CLUTCH FLUID (IF EQUIPPED)
EL(FL) UK 7.QXP 8/5/2013 7:02 PM Page 19