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97010642160
Product Information
Product Information
Heating Hose, Return.

The Heating Hose, Return is a genuine Porsche OEM heater coolant hose designed to return coolant from the heater core back into the engine cooling system. This hose forms a vital part of the HVAC heating circuit, ensuring continuous coolant circulation for consistent cabin heating and stable engine temperature control. Manufactured to Porsche specifications, it provides precise fitment, excellent resistance to heat and pressure, and long-term durability for Porsche Panamera (970) models.

Fits:

  • Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
  • Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
  • Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
  • Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16  

Diagram Ref No 23 (Diagram Ref No 17 Included)

What This Product Does:

  • Returns heated coolant from the heater core to the engine cooling system.
  • Completes the heater circuit loop, allowing coolant to continuously circulate.
  • Helps maintain stable engine operating temperatures by integrating the heater system into the overall cooling loop.
  • Provides a flexible, heat-resistant connection that accommodates engine movement and thermal expansion without restricting coolant flow.

Symptoms Of Wear Or Failure:
  • Coolant may drip or seep from the hose body or at the connection points, often leaving visible residue.
  • A leaking return hose can cause gradual coolant loss, requiring frequent top-ups.
  • Coolant loss from the heater circuit can reduce overall cooling system efficiency and lead to overheating.
  • If coolant circulation is restricted, the heater core may not function properly, reducing heating performance.
  • A noticeable coolant odor in the engine bay or inside the cabin may indicate a leak in the heater return line.
  • Common signs include cracking or splitting, bulging or swelling, hardened or brittle rubber, coolant staining or residue buildup.
  • Low coolant or overheating warnings may appear if the hose begins to fail.

Why Replacement Matters:
  • Prevents coolant leaks that can lead to low coolant levels and loss of system pressure.
  • Maintains consistent cabin heating, as proper coolant return flow is required for the heater core to function efficiently.
  • Helps avoid engine overheating, since coolant loss or restricted flow reduces cooling performance.
  • Restores balanced coolant circulation, ensuring stable engine operating temperatures.
  • Protects nearby components, as leaking coolant can damage hoses, wiring, sensors, and engine parts.



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97010642160

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