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Porsche // 991 (911) MK2 2016-2019 // 991.2 Speedster 4.0L (510Bhp) 2019
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Coolant temperature sensor. Porsche Boxster 986 2.7L & 3.2L / 996 / 996 Turbo / 997 / 955 Cayenne S & Turbo - 99660641000
99660641000/1
Vehicle Group
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- 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>>
Information
Coolant temperature sensor.
Porsche 986 Boxster 2.7L, 3.2L - for Coolant temperature
Porsche 996 Carrera 3.6L - for Coolant temperature
Porsche 996 Turbo - for Coolant & Oil temperature*
Porsche 996 GT3 - for Coolant temperature
Porsche 997 2005-08 -for Coolant temperature
Porsche 997 GT3 - for Coolant temperature
Porsche 955 Cayenne S & Turbo - Coolant temperature
Diagram ref no 29
Related reference numbers
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99660641000
The product you are viewing cross references to these numbers
(*on Porsche 996 Turbo there is also an additional of same the sensor used for Oil temperature)
Fits:Porsche 986 Boxster 2.7L, 3.2L - for Coolant temperature
Porsche 996 Carrera 3.6L - for Coolant temperature
Porsche 996 Turbo - for Coolant & Oil temperature*
Porsche 996 GT3 - for Coolant temperature
Porsche 997 2005-08 -for Coolant temperature
Porsche 997 GT3 - for Coolant temperature
Porsche 955 Cayenne S & Turbo - Coolant temperature
Diagram ref no 29
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99660641000
99660641000
847603076908
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Price: £22.00
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Information
Water temperature coolant sensor.
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Price: £96.33
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Information
Water Temperature Coolant Sensor.
Diagram Ref No 35
Coolant temperature is an important parameter for both engine performance and cooling-system management. As the engine warms from a cold start to normal operating temperature, the sensor continuously provides temperature information that can be used by the ECU for temperature-dependent operating strategies.
Symptoms Of Wear Or Failure:
Why Replacement Matters:
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Restore accurate coolant-temperature monitoring and dependable engine-management operation with this OE Match Water Temperature Coolant Sensor. Designed for compatible Porsche applications, this sensor measures coolant temperature and provides the relevant electronic control system with the information required to monitor engine operating conditions.
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Diagram Ref No 35
Coolant temperature is an important parameter for both engine performance and cooling-system management. As the engine warms from a cold start to normal operating temperature, the sensor continuously provides temperature information that can be used by the ECU for temperature-dependent operating strategies.
The sensor operates in a demanding environment, exposed to hot coolant, pressure and repeated heating and cooling cycles. Over time, the sensing element or electrical connections can deteriorate, causing inaccurate, intermittent or implausible temperature readings.
A defective sensor may incorrectly report that the coolant is hotter or colder than it actually is. This can result in warning messages, diagnostic fault codes and incorrect engine-management behaviour.
This OE Match Water Temperature Coolant Sensor provides a high-quality replacement for a failed or inaccurate original sensor.
What This Product Does:
- Measures engine coolant temperature.
- Provides temperature information to the relevant electronic control system.
- Helps determine whether the engine is cold, warming up or at operating temperature.
- Supports temperature-dependent engine-management strategies.
- Helps maintain correct warm-up operation.
- Supports accurate monitoring of cooling-system temperature.
- Can contribute to cooling-fan control depending on vehicle specification.
- Helps identify abnormal coolant temperatures.
- Supports engine protection and diagnostic functions.
- Helps maintain consistent engine operation as temperature changes.
- Replaces a faulty, inaccurate or intermittent temperature sensor.
- Provides an OE Match replacement for compatible Porsche applications.
Symptoms Of Wear Or Failure:
- Check engine or engine-management warning light.
- Cooling-system warning messages.
- Coolant temperature-related diagnostic fault codes.
- Incorrect coolant temperature readings.
- Temperature readings that are unusually high or low.
- Temperature values changing suddenly or erratically.
- Difficult cold starting. Rough running during warm-up.
- Unstable idle. Increased fuel consumption.
- Poor engine performance while warming up.
- Cooling fans operating unexpectedly.
- Cooling fans running excessively.
- Cooling-fan behaviour inconsistent with actual engine temperature.
- Intermittent temperature information.
- Damaged or corroded electrical connector.
- Damaged wiring near the sensor.
- Coolant leakage around the sensor or its seal.
Why Replacement Matters:
- Accurate coolant-temperature information allows the vehicle's electronic systems to respond correctly as engine temperature changes.
- When the engine is cold, its operating requirements differ from those at normal working temperature. If a defective sensor reports an incorrect temperature, the ECU may make adjustments based on inaccurate information.
- For example, a sensor incorrectly indicating a cold engine can potentially cause inappropriate warm-up strategies to remain active. This may contribute to poor running, increased fuel consumption or higher emissions.
- An incorrectly high reading can cause different control responses and may also make genuine cooling-system faults more difficult to diagnose.
- Intermittent sensors can be particularly problematic because they may operate normally at certain temperatures before suddenly producing implausible values. This can lead to intermittent warning lights, fault codes or inconsistent engine behaviour.
- Replacing a confirmed faulty sensor with this OE Match Water Temperature Coolant Sensor helps restore reliable temperature feedback and correct temperature-dependent system operation.
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Price: £73.68
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