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Hyundai Tucson: Heater Pipe

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Mechanical System / Cooling System / Heater Pipe

  1. Disconnect the battery negative terminal.
  2. Remove the engine cover.

(Refer to Engine and Transaxle Assembly - "Engine Cover")

  1. Remove the engine room under cover.

(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

  1. Drain the coolant.

(Refer to Cooling System - "Coolant")

  1. Remove the air duct and air cleaner assembly.

(Refer to Intake and Exhaust System - "Air Cleaner")

  1. Remove the battery and battery tray.

(Refer to Engine Electrical System - "Battery")

  1. Disconnect the heater hoses (A).

  1. Remove the integrated thermal management module (ITM).
  2. Remove the intake manifold.

(Refer to Intake and Exhaust System - "Intake Manifold")

  1. Remove the drive belt.

(Refer to Drive Belt System - "Drive Belt")

  1. Remove the mild hybrid starter generator (MHSG).

(Refer to Engine Electrical System - "Mild Hybrid Starter Generator (MHSG)")

  1. Disconnect the wiring connectors and harness clamps and remove the connector brackets around the heater pipe.
  2. Remove the heater pipe B mounting nuts (A)

Tightening torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

  1. Disconnect the heater outlet pipe hose (A).

  1. Disconnect the turbo charger coolant hose A (A).

  1. Remove the heater pipe A and heater pipe B (A).

Tightening torque : Bolt (B) : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) Bolts (C) : 14.7 - 21.6 N.m (1.5 - 2.2 kgf.m, 10.8 - 15.9 lb-ft)

  1. Install in the reverse order of removal.

WARNING

  • Always use a new integrated thermal management module (ITM) O-ring.
  • When assembling the hose, Use a product with EPDM rubber stability.
  • If a hose lubricant is applied, fill the coolant after 30 minutes of assembly.
  • Place the hose at the specified location of the stopper and assemble them together. The front side of stoppers should be in close contact with the hose. And then, place the clamp at the correct location.
  1. Fill with engine coolant.

(Refer to Cooling System - "Coolant")

WARNING

The coolant must be injected according to the integrated thermal management module (ITM) coolant filling method.

  1. Start engine and check for leaks.

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