Hyundai Ioniq: Heater / Heater Unit. Repair procedures

Hyundai Ioniq (AE) 2017-2024 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Heater Unit. Repair procedures

Replacement
   
When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery / recycling / charging station.
   
•
If the POE oil of the system gets mixed with PAG oil, then dielectric breakdown due to decreased volumetric resistivity can occur and inoperative A/C compressor may result, A/C compressor may not work.
3.
When the engine is cool, drain the engine coolant from the radiator.
(Refer to Engine Mechanical System - "Coolant")
4.
Remove the cowl top cover.
(Refer to Body - "Cowl Top Cover")
5.
Remove the bolts and the expansion valve (A) from the evaporator core.
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 Ib-ft)

   
•
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
•
When installing, replace with a new O-ring.
6.
Disconnect the heater hoses (A) from the heater unit.

   
•
Engine coolant will run out when the hoses are disconnected; drain it into a clean drip pan. Be sure not to let coolant spill on electrical parts or painted surfaces. If any coolant spills, rinse it off immediately.
7.
Loosen the cowl cross member mounting bolts.

8.
Remove the floor console assembly.
(Refer to Body - "Floor Console Assembly")
9.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
10.
Remove both sides of the front pillar trim.
(Refer to Body - "Front Pillar Trim")
11.
Remove the cowl side trim.
(Refer to Body - "Cowl Side Trim")
12.
Remove the steering column shroud lower panel.
(Refer to Body - "Steering Column Shroud Panel")
13.
Remove the steering wheel.
(Refer to Steering System - "Steering Wheel")
14.
Remove the multifunction switch.
(Refer to Body Electrical System - "Multifunction Switch")
15.
Lower the steering column after loosening the mounting bolts.
(Refer to Steering System - "Steering Column and Shaft")
16.
Remove the shift lever assembly.
(Refer to Automatic Transmission System - "Shift Lever")
17.
Remove the crash pad under cover [RH](A).

18.
Remove the rear air duct (A).

19.
Separate the floor carpet (A) to obtain space for removing the rear heating duct.

20.
Loosen the mounting nuts and remove the front air duct (A).

21.
Disconnect the airbag control module (SRSCM) connector (A).

22.
Disconnect the junction box connectors (A).

23.
Disconnect the multi box connectors (A).
[Driver's side]

[Passenger's side]

24.
Disconnect the connectors (A) and the mounting clips in the front pillar.
[Driver's side]

[Passenger's side]

25.
Remove the drain hose (A).

26.
Loosen the cowl blower unit mounting bolts.
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 Ib-ft)

27.
After loosening the bolts and nuts remove the main crash pad and cowl cross bar assembly (A) together.

28.
Disconnect the heater & blower unit connectors.
(1)
Disconnect the auto defogging actuator connector (A), passenger's side mode control actuator connector (B) and remove the wiring mounting clips.

(2)
Disconnect the duct sensor (A), driver's temperature control actuator (B), mode control actuator (C) and remove the wiring mounting clips.

(3)
Disconnect the blower motor connector (A) and remove the wiring mounting clips.

(4)
Disconnect the passenger's side temperature control actuator (A), evaporator temperature sensor connector (B), intake actuator connector (C) and remove the wiring mounting clips.

29.
Loosen the heater & blower unit mounting bolt (A).
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 Ib-ft)

30.
Remove the heater and blower unit (A) from the crash pad after loosening the mounting nuts.
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 Ib-ft)

31.
Separate the blower unit (B) from the heater unit (A) after loosening the screws.

32.
To install, reverse the removal procedure.

    Heater Unit. Components and components location

    Component Location1. Heater unit assemblyCompoents1. Heater core cover2. Heater core & Seal assembly3. Mode actuator [LH]4. Temperature control actuator [LH]5...

    Heater Core. Repair procedures

    Replacement1.Disconnect the negative (-) battery terminal. 2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit") 3.Loosen the mounting screws and remove the driver's temperature control actuator (A)...

    Other information:

    Hyundai Ioniq (AE) 2017-2024 Service Manual: Idler. Repair procedures


    Removal and Installation1.Remove the drive belt.(Refer to Timing System - "Drive Belt")2.Remove the idler (A). Tightening torque : 39.2 - 49.0 N.m (4.0 - 5.0 kgf.m, 28.9 - 36.2 lb-ft)3.Install in the reverse order of removal.InspectionCheck the idler for excessive oil leakage, abnormal rotation or vibration...

    Hyundai Ioniq (AE) 2017-2024 Service Manual: Troubleshooting


    Fail-Safe Mode Item Fail-Safe ETC MotorThrottle valve stuck at 7°TPSTPS 1 faultReplace it with TPS 2TPS 2 faultReplace it with TPS 1TPS 1, 2 faultThrottle Angle (°) Throttle valve stuck at 7°Duty (%)• TPS1 : 13...

    Categories

    Rear Seats

    Folding the rear seat

    The rear seatbacks can be folded to facilitate carrying long items or to increase the luggage capacity of the vehicle.

    WARNING

    Never allow passengers to sit on top of the folded down seatback while the vehicle is moving. This is not a proper seating position and no seat belts are available for use. This could result in serious injury or death in case of an accident or sudden stop. Objects carried on the folded down seatback should not extend higher than the top of the front seatbacks. This could allow cargo to slide forward and cause injury or damage during sudden stops.

    read more


     
    Copyright © 2024 www.hioniqae.com