Breather Line, Cooler For Coolant. Porsche 982 / 982C / 991.2 2017>>  ❭  9P11214

Breather Line, Cooler For Coolant.
Ensure proper cooling system ventilation and pressure control with the OE MATCH Breather Line, Cooler for Coolant. This breather line is designed to route air and vapor from the coolant cooler system, helping maintain stable pressure and efficient coolant circulation under varying engine temperatures.  

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Diagram Ref No 20

What This Product Does:

• Vents air and vapor from the coolant cooler system
• Helps regulate cooling system pressure
• Supports consistent coolant circulation
• Reduces strain on hoses, seals, and cooling components

Symptoms Of Wear Or Failure:

• Coolant leaks near the coolant cooler or hose connections
  
• Sweet coolant smell from the engine bay
  
• Coolant residue or staining around fittings and clamps
  
• Cracked, brittle, or collapsed hose material
• Loose or leaking hose connections
• Gradual coolant loss requiring frequent top-offs
  
• Pressure buildup in the cooling system (may cause swelling hoses)
  
• Steam from under the hood in more severe cases
  
• Engine temperature running higher than normal if coolant flow is affected
  
  

Why Replacement Matters:

• Replacing a worn or damaged coolant cooler breather line is important because it helps the cooling system properly vent air and regulate pressure during normal engine operation. Over time, heat and constant exposure to coolant can cause the line to become brittle, cracked, or leak.
• If the breather line fails, it can lead to coolant loss, pressure buildup, and added strain on surrounding hoses and seals. This may reduce cooling system efficiency and increase the risk of overheating or costly component damage.
• Installing a new breather line helps prevent leaks, supports stable cooling performance, and protects the engine by maintaining proper system pressure and ventilation.

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9P11214

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