Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24  ❭  PAE819314H

Heating Hose.
The Heating Hose is a genuine Porsche OEM heater coolant hose designed to carry hot engine coolant through the HVAC heating circuit. This hose supports proper coolant circulation to the heater core and heater pump, ensuring consistent cabin heating performance and maintaining stable cooling system operation. Manufactured to Porsche specifications, it offers precise fitment, excellent resistance to heat and pressure, and long-term durability for Porsche Panamera (971) models.

Fits:

• Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
• Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
• Porsche 971.2 Panamera 2.9L V6 2021-23
• Porsche 971.2Panamera 4 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera GTS 4.0L V8 2021-23
• Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23 

 
Diagram Ref No 2

What This Product Does:

• Transports hot engine coolant through the heater circuit.
• Supplies coolant to the heater core or heater pump, enabling cabin heating.
  
• Helps maintain continuous coolant circulation within the cooling system.
  
• Provides a flexible, heat-resistant connection that accommodates engine movement and thermal expansion.
  
  

Symptoms Of Wear Failure:

• Coolant may seep or drip from cracks in the hose or at the connection points, leaving wet stains or dried residue.
• A leaking heater hose can cause gradual coolant loss, requiring frequent topping up.
• If coolant flow to the heater core is reduced, the heater may blow lukewarm or cold air.
• Coolant loss from the heater circuit can reduce cooling efficiency and contribute to overheating.
• A sweet odor in the engine bay or cabin is a common sign of a heater hose leak.
• Signs include cracking or splitting, swelling or bulging, hardened or brittle rubber, soft spots, coolant staining.
  
• Low coolant 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 reliable cabin heating, since the heater core depends on proper coolant flow.
  
• Helps avoid engine overheating, as coolant loss reduces cooling system efficiency.
  
• Restores proper coolant circulation, ensuring stable engine operating temperatures.
  
• Protects surrounding components, because leaking coolant can damage sensors, wiring, and other engine bay parts.

Related reference numbers
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PAE819314H

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