Engine Coolant Breather Line. Porsche 95B.2 / 95B.3 Macan 2.9L / 3.0L 2019>>  ❭  95B122909D

Engine Coolant Breather Line.

The Engine Coolant Breather Line is a OE MATCH cooling system component designed to vent trapped air and regulate pressure within the engine’s coolant circuit. This breather hose allows air and vapour to escape safely, helping maintain proper coolant circulation and consistent system pressure.

Fits:

• Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
• Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
• Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
• Porsche 95B.3 Macan S Petrol 2.9L V6 (380Bhp) 2022>>
• Porsche 95B.3 Macan GTS Petrol 2.9L V6 (440Bhp) 2022>>

  
Diagram Ref No 1

What This Product Does:

• Allowing trapped air to vent from the coolant circuit
• Preventing airlocks that can reduce cooling performance
• Maintaining stable cooling system pressure
• Supporting efficient coolant flow
• Helping regulate engine operating temperature

Symptoms Of Wear Or Failure:

• Coolant leaks near the hose or connection points
• Cracked, brittle, or split hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Difficulty bleeding the cooling system
• Fluctuating engine temperature readings
• Coolant residue around hose fittings

Why Replacement Matters:

• Maintain correct cooling system pressure
• Prevent airlocks and coolant circulation issues
• Protect the engine from overheating damage
• Restore reliable cooling system performance
• Avoid costly repairs caused by cooling system failure

Related reference numbers
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95B122909D

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