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- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
The Cooling Water Tube is a OE MATCH coolant pipe designed to route engine coolant through the vehicle’s cooling and heating system. This rigid water tube helps maintain correct coolant circulation between key cooling components, supporting stable engine operating temperatures and reliable heater performance. It provides precise fitment and long-term durability for Porsche 970 Panamera models.
Fits:
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
Diagram Ref No 8
What This Product Does:
- Routes engine coolant through the cooling circuit to support proper circulation.
- Helps regulate engine operating temperature by ensuring coolant flows efficiently through the system.
- Supports the heater system, since cabin heating depends on hot coolant being circulated through the heater core.
- Provides a rigid, stable coolant pathway, reducing the risk of hose collapse or kinking in tight routing areas.
- Coolant may seep or drip from the tube itself or from the joints where hoses connect, often leaving residue or staining.
- A failing tube can cause gradual coolant loss, leading to frequent top-ups.
- Leaks or internal restrictions can disrupt coolant circulation, causing rising or fluctuating engine temperatures.
- A noticeable sweet smell in the engine bay is a common sign of a coolant leak from the tube.
- Because it’s a rigid pipe, wear often appears as corrosion or pitting, cracking, weakened areas near joints or mounting points
- If coolant flow is compromised, the heater core may not receive enough hot coolant, resulting in poor heater performance.
- Modern Porsche models may trigger low-coolant or overheating warnings if the tube begins to fail.
Why Replacement Matters:
- Prevents coolant leaks that can lead to low coolant levels and loss of system pressure.
- Helps avoid engine overheating, which can cause severe and expensive engine damage.
- Restores proper coolant flow, ensuring the cooling system works efficiently under all driving conditions.
- Maintains reliable heater performance, since cabin heat depends on hot coolant reaching the heater core.
- Protects surrounding components, because leaking coolant can damage hoses, sensors, seals, and nearby engine parts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94610606921
The product you are viewing cross references to these numbers
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- 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
Cooling water breather pipe for the Porsche 970 Panamera with a 3.6L V6 engine.
Fits:
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- 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
Engine codes:
M46.20 / M46.40 / MCW.AA / MCX.NA / MCW.A / MCX.N
Diagram ref no 11
What This Product Does
This pipe forms part of the engine coolant breather circuit. It provides the connection used by that circuit within the cooling system.
Technical Details
- Brand: OE Match.
- Component identification: cooling water breather pipe / breather line.
- Engine identifiers recorded for this part in the supplied diagram: 4620, 4640, CWAA and CXNA.
Symptoms of Fault
- Moisture or dried coolant deposits around pipe connections.
- A sweet coolant odour following a journey.
- Coolant level falling between checks.
- Visible damage or leakage from the pipe or its fittings.
- Temperature increases or coolant warnings associated with coolant loss.
Why Replacement Matters
A damaged breather pipe or leaking connection can allow coolant to escape. Renewing a confirmed faulty component addresses the leak; inspecting adjacent connections at the same time helps identify other sources of seepage. These symptoms can also originate elsewhere in the cooling system, so diagnosis should precede replacement.
FAQs
How should a suspected leak be checked?
Inspect the pipe and connection points for dampness or deposits. A cooling-system pressure test can help locate leaks that are difficult to see.
What should be checked before selecting this pipe?
Confirm the vehicle's engine identification and compare reference 94610602622 with the component being replaced.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94610602622
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
This OE Match cooling water breather pipe is a direct replacement for the original Porsche coolant vent line fitted to selected Porsche 970 Panamera and 958 Cayenne V8 models. Installed within the engine cooling circuit, the breather pipe connects key coolant passages and allows trapped air and coolant vapour to be vented correctly through the system. Proper coolant venting is essential on high-performance Porsche V8 engines to prevent air pockets, maintain stable coolant flow, and support efficient engine temperature regulation.
Fits:
Porsche 970 Panamera 4.8L V8 2010-2016 S / GTS / TURBO
* engine codes: M48.20 / M48.40 / MCX.PA / MCX.RA / MCX.P / MCX.R / MCW.BA / MCW.CA / MCW.B / MCW.C
Porsche 958 Cayenne 4.8L V8 2011-2018 S / GTS / TURBO / TURBO S
* engine codes: M48.02 / M48.52 / MCF.TB / MCY.XA / MCF.T / MCY.X
Diagram ref no 11
The cooling water breather pipe vents and circulates coolant within the engine cooling system, helping eliminate trapped air and maintain correct coolant pressure and flow throughout the engine.
Function
• Vents trapped air from the cooling system
• Supports proper coolant circulation and pressure regulation
• Helps maintain stable engine operating temperature
• Reduces risk of air pockets within cooling system
• Protects against coolant leaks and overheating
Cooling system hoses and breather pipes are constantly exposed to heat, coolant pressure, and vibration. Over time, the material can harden, crack, or become porous, increasing the risk of coolant leaks and air entering the cooling system. Replacing ageing breather pipes helps maintain reliable cooling system operation and prevents potential engine overheating issues.
When to replace
• Visible coolant leaks or staining
• Cracked or brittle coolant hose material
• Cooling system pressure loss
• Overheating or fluctuating coolant temperatures
• During preventative cooling system maintenance
• During engine or coolant hose servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810602622
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
90º coolant fitting at the alternator.
Includes O-ring; Premium Metal Construction
Fits:
Porsche 955 Cayenne S / Turbo 4.5L 2003-06
M 816 09867 >>
M 8260 4064 >>
Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2010-18
Porsche 970 Panamera 4.8L 2010-16
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810646200PRM
The product you are viewing cross references to these numbers
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
Coolant return hose by OE Match this is the return line within the coolant expansion tank assembly.
Fits
- Porsche 970 Panamera 3.6L 2011-16
Check fitment for your specific vehicle (model, year, engine) before ordering.
Diagram ref no 34
What This Product Does
This hose carries returning coolant through its designated section of the cooling circuit. A sound hose and correctly sealed connections help retain coolant as it circulates through the system. It is a replacement return line, rather than an expansion tank, cap or level sender.
Functions
- Provides a passage for returning coolant.
- Contains coolant within the return circuit.
- Connects the associated cooling-system components.
Technical Details
- Part reference: 97010650101.
- Component identification: coolant hose, return line.
- Supplied engine/model identifiers: 4620, 4640, CWAA and CXNA.
- Application: specified 3.6L V6 Panamera and Panamera 4 variants.
Symptoms of Fault
- Moisture or dried coolant deposits at the connections.
- A sweet odour following a journey.
- A gradually falling coolant level or recurring warning.
- Cracking near a clamp or connection.
- Swollen sections or unusually soft areas.
- Seepage that appears only when the system is hot.
- Staining beneath the engine or on the undertray.
- Gurgling or an unexpected temperature increase.
Why Replacement Matters
Renewing a deteriorated return hose addresses a potential source of coolant loss. Repeated heating and cooling, ageing and contamination can weaken hoses or their connections. Inspect neighbouring fittings, clips and sealing surfaces during the repair, since replacing the hose alone will not resolve damage elsewhere. OE Match focuses on replacement components for Porsche applications, with specification and fitment checks forming part of its development process.
FAQs
- How can a suspected hose leak be located?
A cooling-system pressure test can help reveal seepage. Examine the hose ends and nearby connections for fresh moisture or deposits. - Why might there be no puddle?
Small amounts of escaping coolant may evaporate against hot surfaces or remain trapped above the undertray. - Should the clamps also be checked?
Yes. Inspect their condition and retention, together with the adjoining fittings, before reassembly. - Do these symptoms confirm this hose has failed?
No. Nearby pipes, seals, the pump or thermostat housing can produce similar signs, so establish the leak source first.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
97010650101
The product you are viewing cross references to these numbers