Hyundai i-30: Maintenance / Engine coolant
The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory.
Check the antifreeze protection and coolant concentration level at least once a year, at the beginning of the winter season, and before travelling to a colder climate.
NOTICE
- When the engine overheats from low engine coolant, suddenly adding engine coolant may cause cracks in the engine. To prevent damage, add engine coolant slowly in small quantities.
- Do not drive with no engine coolant. It may cause water pump failure and engine seizure, etc.
Checking the engine coolant level
■ Type A
■ Type B
■ Type C
Check the condition and connections of all cooling system hoses and heater hoses. Replace any swollen or deteriorated hoses.
The coolant level should be filled between MAX and MIN (or F (Full) and L (Low)) marks on the side of the coolant reservoir when the engine is cool.
If the coolant level is low, add enough distilled (deionized) water. Bring the level to MAX (or F (Full)) but do not overfill.
If frequent additions are required, we recommend that the system be inspected by a HYUNDAI authorised repairer.
■ Type A
■ Type B
■ Type C
WARNING
Never remove the coolant cap/radiator cap or the drain plug whilst the engine and radiator are hot. Hot coolant and steam may blow out under pressure, causing serious injury.
Turn the engine off and wait until the engine cools down. Use extreme care when removing the coolant cap/radiator cap. Wrap a thick towel around it, and turn it counterclockwise slowly to the first stop. Step back whilst the pressure is released from the cooling system. When you are sure all the pressure has been released, press down on the cap, using a thick towel, and continue turning counterclockwise to remove it.
WARNING
The electric motor for the cooling fan may continue to operate or start up when the engine is not running and can cause serious injury.
Keep hands, clothing and tools away from the rotating fan blades of the cooling fan.
The electric motor for the cooling fan is controlled by engine coolant temperature, refrigerant pressure and vehicle speed. 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 for the cooling fan may begin to operate at any time and continue to operate until you disconnect the negative battery cable.
Recommended engine coolant
- When adding coolant, use only distilled (deionized) water for your vehicle and never mix hard water in the coolant filled at the factory. An incorrect coolant mixture can result in serious malfunction or engine damage.
- The engine in your vehicle has aluminium engine parts and must be protected by an ethylene-glycol with phosphate based coolant to prevent corrosion and freezing.
- DO NOT USE alcohol or methanol coolant or mix them with the specified coolant.
- 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 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 temperature ranges of -35°C (-31°F) and higher.
Changing the engine coolant
We recommend that coolant be changed by a HYUNDAI authorised repairer according to the Maintenance schedule.
NOTICE
To prevent damage to engine parts, put a thick towel around the engine coolant cap or radiator cap before refilling the coolant to prevent the coolant from overflowing into engine parts, such as the alternator.
Checking the engine oil and filter
We recommend that the engine oil
and filter be replaced by a HYUNDAI
authorised repairer.
WARNING
Used engine oil may cause irritation
or cancer of the skin if
left in contact with the skin for
prolonged periods of time...
Brake/clutch fluid
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...
Other information:
Hyundai i30 (PD) 2018-2025 Service Manual: Troubleshooting
Troubleshooting Symptom Passible Cause Remedy (Refer to page) Water leaks from panorama sunroof Deteriorated roof lid weatherstrip Replace Excessive roof lid-to-body clearance and improperly fitted weatherstrip Adjust Wind noise around Panorama sunroof Loose or deformed deflector, gaps in body work Retighten adjust or replace Noise created by moving panorama sunroof lid Foreign particles lodged in guide rail Check drive cable and guide rails for foreign particles Loose guide rails and lid Retighten Motor runs but sunroof does not move or moves only partially Foreign particles lodged in guide rail Adjust or replace Incorrect engagement of motor pinion with drive cable Decrease in motor's clutch slipping force Increased sunroof sliding resistance or interference of sunroof with drive cables, weatherstrip, etc...
Hyundai i30 (PD) 2018-2025 Service Manual: Instrument Cluster
Components and components location Components TFT LCD Cluster (Standard) TFT LCD Cluster (7Inch) Connector Pin Information Connector Pin Information No. Description No. Description 1 Ground 21 Trip switch (-) 2 Illumination (-) 22 Trip switch 1 (+) 3 Rheostat switch (Down)_Input 23 Trip switch 2 (+) 4 Rheostat switch (Up)_Input 24 M/T N switch 5 Dentent 25 Driver mode switch 6 P 26 - 7 R 27 - 8 N 28 Low washer level sensor 9 D 29 M-CAN (Low) 10 S 30 M-CAN (High) 11 Immobillizer 31 - 12 Vehicle speed_Output 32 C-CAN (High) 13 Alternator_Input 33 C-CAN(Low) 14 Fuel sender (+)_Input 34 - 15 - 35 - 16 Fuel sender (-)_Input 36 - 17 Water separator (+) 37 Ground 18 Airbag (+)_Input 38 - 19 Oil press switch (-)_Input 39 IGN 1 20 Tail_input 40 Battery (+) Schematic diagrams Circuit Diagram TFT LCD Cluster (Standard) TFT LCD Cluster (7Inch) Description and operation Description Communication Network Diagram Abbreviation Expalnation ECM Engine Control Module TCU Transmission Control Unit MDPS Motor Driven Power Steering AEB Autonomous Emergency Braking LKAS Lane Keeping Assist System FPS Fuel Pump Control module RR CAMERA Rear View Carmera VACUUM Vacuum Pump CLUSTER Cluster Module ACU Airbag Control Unit DATC Dual Automatic Temp Control MTC Temp Control OCS Occupant Classification System VDC Vehicle Dynamic Control BSD Blind Spot Detection AMP Amplifier AVN Head Unit (Audio / AVN) SMK Smart Key Unit WPC Wireless Power Charger IMS Integrated Memory System DDM Driver Door Module ADM Assist Door Module BCM Body Control Module B-CAN Body Controller Area Network P-CAN Powertrain Controller Area Network M-CAN Multi media Controller Area Network C-CAN Chassis Controller Area Network Cluster Variant Coding As we have more options (ESC, MDPS etc...
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Power windows
(1) Driver’s door power window
switch
(2) Front passenger’s door power
window switch
(3) Rear door (right) power window
switch
(4) Rear door (left) power window
switch
(5) Window opening and closing
(6) Automatic power window
(7) Power window lock switch
