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Your Vehicle
Porsche // 991 (911) MK2 2016-2019 // 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
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- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
The Breather Line is a genuine Porsche ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.
Fits:
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2015-17
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2015-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2015-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2015-17
Diagram Ref No 6
What This Product Does:
- Allowing trapped air or vapours to vent safely
- Maintaining stable system pressure
- Supporting efficient coolant or crankcase circulation (application dependent)
- Helping prevent pressure-related leaks
- Ensuring the system operates correctly without airlocks or restriction
Symptoms Of Wear Or Failure:
- Coolant or oil vapour leaks (depending on system type)
- Cracked, split, or brittle hose material
- Poor system bleeding or air trapped in the circuit
- Coolant loss or pressure issues
- Engine bay smells (coolant or oil vapour)
- Warning lights or fault codes in some cases
- Overheating or unstable temperature readings (if coolant-related)
Why Replacement Matters:
- Maintain correct ventilation and pressure control
- Prevent leaks and coolant/oil loss
- Support stable engine operating temperatures
- Avoid overheating and expensive repairs
- Restore proper system efficiency and reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810631011
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