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- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- 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 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- 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
- 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
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Coolant Bottle Level Sensor
Restore reliable coolant level monitoring with this OE Match
Coolant Bottle Level Sensor. The coolant level sensor monitors the amount of coolant
within the expansion tank and allows the vehicle's warning system to alert the
driver if the coolant level falls too low.
Fits:
- Porsche 981 Boxster 2012-16
- Porsche 718 (982) Boxster 2017>>
- Porsche 981 Cayman 2012-16
- Porsche 718 (982) Cayman 2017>>
- Porsche 991.1 2012-16
- Porsche 991.2 2017>>
- Porsche 970 Panamera 2010-16
Diagram ref no 12
A faulty sensor can cause incorrect low-coolant warnings or may fail to report a genuine drop in coolant level. Replacing a defective sensor restores an important part of the cooling system's monitoring and warning function.
What Does the Coolant Bottle Level Sensor Do?
The coolant level sensor is fitted to the coolant expansion tank, also commonly referred to as the coolant bottle or reservoir.
Its job is to monitor whether the coolant is at the required level. If the level falls below the specified point, the sensor communicates this to the vehicle's electronics so a warning can be displayed to the driver.
A correctly functioning coolant level sensor helps:
- Monitor coolant level within the expansion tank
- Alert the driver when coolant becomes too low
- Provide early warning of coolant loss
- Reduce the risk of driving with insufficient coolant
- Support correct operation of the cooling system warning functions
The sensor does not measure engine temperature and does not control coolant flow. Its purpose is specifically to monitor coolant level.
Why Is Coolant Level Monitoring Important?
The engine cooling system relies on having the correct quantity of coolant circulating through the engine, radiators and associated components.
A falling coolant level can indicate a leak or another cooling system problem. If coolant loss continues unnoticed, the cooling system may become unable to control engine temperature effectively.
The coolant level sensor therefore provides an important early warning, allowing the cooling system to be inspected before a low coolant condition develops into a more serious problem.
Why Do Coolant Level Sensors Fail?
Coolant level sensors operate in a demanding environment and can deteriorate with age and repeated heating and cooling cycles.
Common causes of failure include:
- Age-related electrical deterioration
- Repeated temperature cycling
- Internal sensor failure
- Coolant contamination or deposits
- Corrosion at electrical connections
- Damaged wiring or connectors
- Damage during expansion tank removal or replacement
A problem with the expansion tank, wiring or electrical connector can produce similar symptoms, so these components should also be inspected before replacing the sensor.
When Should the Coolant Level Sensor Be Replaced?
Replacement should be considered if:
- A low coolant warning remains on despite the coolant being at the correct level
- Low coolant warnings appear intermittently without an actual loss of coolant
- The sensor fails diagnostic testing
- The sensor or electrical connection is physically damaged
- Corrosion is present around the connection
- The sensor has been damaged during cooling system maintenance
- The coolant expansion tank is being replaced and the existing sensor is no longer serviceable
If the vehicle displays a low coolant warning, the actual coolant level should always be checked first. A warning should not automatically be assumed to be caused by a faulty sensor.
Important Cooling System Checks
If the coolant level is genuinely low, the cause should be investigated rather than simply topping up the expansion tank.
Potential coolant loss can occur from components such as hoses, expansion tanks, radiators, water pumps, seals and other cooling system connections.
Replacing the level sensor is appropriate when the sensor itself has been identified as faulty.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
97060650300
The product you are viewing cross references to these numbers
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- 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
Restore cooling-system integrity and reliable coolant management with this OE Match Coolant Expansion Tank, designed for compatible Left-Hand Drive (LHD) Porsche applications.
Fits:- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- 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
Diagram Ref No 1
Also known as a coolant reservoir or header tank, the expansion tank is an important part of the engine cooling system. As the engine reaches operating temperature, the coolant heats up and expands. The expansion tank provides the necessary space to accommodate this change in coolant volume while forming part of the sealed, pressurised cooling circuit.
When the engine cools, the coolant contracts and the system returns towards its cold operating level. Because the tank is continually subjected to heat, pressure and repeated thermal cycles, its plastic construction can eventually become brittle, cracked or distorted. Seams and hose connection points can also deteriorate and begin leaking.
This OE Match Coolant Expansion Tank provides a high-quality replacement for a cracked, leaking or deteriorated original reservoir, helping restore correct coolant containment and dependable engine cooling.
What This Product Does:
- Stores the cooling system's reserve coolant.
- Accommodates coolant expansion as engine temperature rises.
- Helps manage changes in coolant volume during heating and cooling.
- Forms part of the sealed cooling circuit.
- Supports correct cooling-system pressure management.
- Provides a point for monitoring coolant level.
- Helps ensure sufficient coolant remains available to the cooling circuit.
- Works with the expansion tank cap and associated coolant hoses.
- Helps maintain reliable engine temperature control.
- Replaces a cracked, leaking or deteriorated coolant reservoir.
- Helps restore cooling-system integrity when tank failure is the cause
- Is specified for compatible LHD Porsche applications.
- Provides an OE Match alternative to the corresponding original component.
Symptoms Of Wear Or Failure:
- Visible coolant leaking from the tank.
- Repeatedly falling coolant level.
- Low coolant warning messages.
- Coolant collecting beneath the vehicle.
- Cracks in the expansion tank.
- Leakage along moulded tank seams.
- Leakage around hose connections.
- Dried coolant deposits around the reservoir.
- Sweet coolant smell around the vehicle.
- Plastic becoming brittle or heavily discoloured.
- Damage around tank mounting points.
- Coolant loss primarily when the engine is hot.
- Frequent need to top up the cooling system.
- Cooling system struggling to maintain pressure.
- Engine temperature running higher than normal.
- Steam or coolant vapour from the engine compartment in severe cases.
Why Replacement Matters:
- The coolant expansion tank operates as part of a hot, pressurised cooling system and must remain structurally sound and properly sealed.
- A small crack or deteriorated seam may initially leak only when the coolant reaches operating temperature and system pressure increases. This can make early leaks difficult to identify. As the tank continues through repeated heating and cooling cycles, minor damage can become progressively worse.
- Continued coolant loss reduces the quantity of fluid available to absorb and transfer engine heat. It can also allow air into the cooling circuit, potentially causing poor circulation, temperature fluctuations and localised overheating.
- If coolant loss becomes severe enough, the engine may overheat. Prolonged or significant overheating can result in expensive damage to seals, gaskets and major engine components.
- A damaged expansion tank can also interfere with the cooling system's ability to maintain its intended pressure. Correct pressure is important for effective cooling-system operation and for controlling the coolant's boiling characteristics at operating temperature.
- Replacing a defective reservoir with this OE Match Coolant Expansion Tank helps restore coolant containment, cooling-system integrity and reliable engine temperature management.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95B121407A
The product you are viewing cross references to these numbers