Coolant Temperature Sensor. Porsche 958 / 95B / 970 / 981 / 982 / 991  ❭  94860642000

Coolant Temperature Sensor. 

Maintain accurate engine temperature monitoring and dependable engine-management operation with this Porsche Coolant Temperature Sensor, part number 94860642000. Designed for compatible Porsche applications, the sensor measures the temperature of the engine coolant and provides this information to the vehicle's engine control unit (ECU).

Fits:

• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 981 Spyder 3.8L 2016
• 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 Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
• 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 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 Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• 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 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 970.2 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 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 42

Coolant temperature is an important operating parameter. The ECU can use this information when managing functions such as fuel delivery, ignition strategy, cooling-system operation and other temperature-dependent engine controls, depending on the vehicle specification.

The sensor operates across a wide temperature range and is continually subjected to engine heat, coolant exposure and repeated heating and cooling cycles. Over time, its internal sensing element or electrical connection can deteriorate, causing inaccurate, intermittent or completely missing temperature information.

A faulty sensor can make the ECU believe the engine is hotter or colder than it actually is. This may affect engine operation and can trigger warning lights or diagnostic fault codes.

Replacing a defective component with the correct Porsche Coolant Temperature Sensor 94860642000 helps restore accurate temperature feedback and reliable engine-management operation.

What This Product Does:

• Measures engine coolant temperature.
• Sends coolant temperature information to the ECU.
• Helps the engine-management system determine engine operating temperature.
• Supports temperature-dependent fuel-management strategies.
• Helps the ECU manage cold-start and warm-up operation.
• Supports correct engine operation as temperature changes.
• Can provide information used by cooling-system control strategies, depending on application.
• Helps identify abnormal engine temperature conditions.
• Supports engine protection and diagnostic functions.
• Provides temperature data for applicable vehicle systems.
• Replaces an inaccurate, intermittent or failed coolant temperature sensor.
• Helps restore dependable engine temperature monitoring.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Coolant temperature-related diagnostic fault codes.
• Incorrect or implausible coolant temperature readings.
• Temperature reading remaining unusually high or low.
• Temperature readings changing erratically.
• Difficult cold starting.
• Poor engine operation during warm-up.
• Rough or unstable idle.
• Increased fuel consumption.
• Engine running excessively rich.
• Poor throttle response during warm-up.
• Cooling fans operating unexpectedly.
• Cooling fans failing to behave as expected.
• Engine-management behaviour inconsistent with actual engine temperature.
• Damaged sensor wiring.
• Corroded or damaged electrical connector.
• Coolant leakage around the sensor mounting area.  

Why Replacement Matters:

• Accurate coolant temperature information is important because the engine-management system needs to know whether the engine is cold, warming up or at normal operating temperature.
• If a faulty sensor incorrectly reports that the engine is cold, the ECU may apply an inappropriate operating strategy. Depending on the application, this can contribute to excessive fuel consumption, poor running and increased emissions.
• If the sensor incorrectly reports a high temperature, engine operation and cooling-system control may also be affected. An inaccurate signal can additionally make genuine cooling-system problems more difficult to diagnose.
• A completely failed or intermittent sensor may trigger diagnostic faults and cause the ECU to substitute a predetermined value or use a fallback strategy.
• Reliable temperature monitoring is particularly important because overheating can cause serious engine damage. Although replacing the sensor will not correct an underlying mechanical cooling-system fault, a properly functioning sensor ensures the vehicle's control systems receive accurate temperature information.
• Replacing a confirmed faulty unit with the correct Porsche Coolant Temperature Sensor 94860642000 helps restore accurate engine temperature feedback, appropriate engine-management operation and dependable cooling-system monitoring.

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