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- 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
The Coolant Hose, Return is a OE MATCH engine coolant return hose designed to carry coolant back through the cooling system loop on compatible Porsche Panamera (970) models. This flexible hose helps maintain proper coolant circulation and temperature regulation by directing coolant toward key cooling components for re-cooling or reservoir return. It offers precise fitment, high resistance to heat and pressure, and long-term durability.
Fits:
- 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
Diagram Ref No 46 (Diagram Ref No 47 Included, 48 Sold Separately)
What This Product Does:
- Returns coolant from components such as the radiator, heater circuit, or other cooling lines back into the main cooling loop.
- Helps maintain continuous coolant circulation, which is essential for stable engine temperature control.
- Supports proper heat dissipation, allowing coolant to be re-cooled before recirculating through the engine.
- Provides a flexible, heat-resistant connection that accommodates engine movement and thermal expansion.
- Coolant may seep or drip from the hose body or at the connection points, often leaving wet staining or dried residue.
- A leaking return hose can cause gradual coolant loss, requiring frequent top-ups.
- Coolant loss or restricted flow can reduce cooling efficiency and cause overheating or fluctuating temperature readings.
- A sweet odor in the engine bay is a common sign of a coolant leak.
- Common signs include cracking or splitting, swelling or bulging, hardened or brittle rubber, soft spots, coolant staining around the hose.
- If coolant circulation is disrupted, the heater core may not receive proper coolant flow.
- Low coolant or temperature warning messages may appear as the hose begins to fail.
Why Replacement Matters:
- Prevents coolant leaks that lead to low coolant levels and loss of cooling system pressure.
- Helps avoid engine overheating, which can cause serious and expensive engine damage.
- Restores proper coolant circulation, ensuring efficient cooling performance under all driving conditions.
- Maintains stable heater performance, since the heater system depends on continuous coolant flow.
- Protects surrounding components, as leaking coolant can damage sensors, wiring, seals, and nearby engine parts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
97010650160
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Cooling water breather pipe
OE Match cooling water breather pipe for Porsche 957 Cayenne S, GTS, Turbo and Turbo S models with the 4.8L V8 engine from 2007–10. This replacement line corresponds with OE reference 94810602604 and the earlier reference 94810602603.
Fits:
Porsche 957 Cayenne 4.8L V8 - S / GTS / TURBO 2007 - 2010
* engine codes: M48.01 / M48.51
Diagram ref no 10
What This Product Does
The breather pipe forms part of the engine water-cooling assembly. It provides the specified connection within the coolant vent circuit, supporting correct coolant circulation and helping the system release trapped air. OE Match components are produced as alternatives referenced against original-equipment applications, with suitability confirmed using the supplied vehicle and OE information.
Functions
- Connects with the engine cooling-system vent circuit
- Allows coolant and displaced air to move through the specified route
- Supports stable cooling-system operation and pressure control
- Replaces an ageing, brittle or leaking original pipe
Technical Details
- Product type: cooling water breather pipe or vent line
- Brand: OE Match
- OE reference: 94810602604
- Previous or cross-reference number: 94810602603
- Engine codes: M48.01 / M48.51
- Parts diagram reference: 10
Symptoms of Fault
- A gradual reduction in the coolant level
- Coolant odour after driving or once the engine is switched off
- Damp joints or dried coolant residue around the pipe connections
- Leaks that become visible only when the engine is hot and the system is pressurised
- Gurgling caused by air entering the cooling circuit
- A low-coolant warning or rising engine temperature
Why Replacement Matters
Repeated heat cycles can make cooling-system pipes and their connections brittle or prone to seepage. A minor leak may only appear at operating temperature but can develop into greater coolant loss. Replacing a damaged breather pipe helps restore the sealed coolant circuit and reduces the risk of overheating. Inspect adjoining seals, connections and related hoses during installation, and renew any parts showing deterioration.
OE Reference
- 94810602604
- 94810602603
FAQs
- Why can this pipe leak only when hot?
Cooling-system pressure increases at operating temperature and can expose small cracks or weakened connections. - Should the seals and nearby hoses be checked?
Yes. Inspect adjoining seals, clamps and hoses for residue, hardening or damage while access is available. - How can a small coolant leak be located?
A cooling-system pressure test can help identify seepage that is difficult to see during a visual inspection. - Is it advisable to drive with a coolant leak?
No. Continued coolant loss can cause overheating and serious engine damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810602604
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Fits:
Porsche 957 MKII Cayenne S 4.8L 2007-10
Porsche 957 MKII Cayenne GTS 4.8L 2007-10
Porsche 957 MKII Cayenne Turbo 4.8L 2007-10
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810606107
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 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Fits:
Porsche 957 MKII Cayenne S 4.8L 2007-10
Porsche 957 MKII Cayenne GTS 4.8L 2007-10
Porsche 957 MKII Cayenne Turbo 4.8L 2007-10
Click 'Zoom in' for large parts diagram.
Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810606910
The product you are viewing cross references to these numbers