What is the function and operation of the ECT sensor in relation to the ECM and coolant temperature on BMW X5?

The ECT sensor is a two-pin temperature sensor that supplies the coolant temperature to the ECM and the instrument cluster. It works in a similar way to an NTC (negative temperature coefficient) sensor; its resistance drops as the temperature of the coolant increases. The ECM changes ignition timing and air/fuel mixture with regard to the water temp; the sensor receives a 5-volt reference voltage, the voltage drop across the sensor varying with water temperature. If ECT sensor input is out of range, or unrealistic expected by the ECM, the MIL comes on whenever the OBD II fault criteria is met, and to ensure the engine runs, the ECM sets an assumed ECT value at 80 degree Celsius plus its offset 176 degrees f, while setting ignition timing to a conservative basic setting. It is mounted at the rear of the engine, to the left of cylinder 6, beneath the intake port and above the intake manifold. It is located under the intake manifold and thus to get to it, the manifold must be taken off after the engine has cooled. The ECT sensor connector has to be removed to eliminate the connection, and the sensor should then be unscrewed from the cylinder head, be careful as there will be some lose coolant. For reinstallation a new copper sealing washer has to be used, lost coolant has to be replenished and the DTC had to be checked and then cleared of its memory by resetting the ECM.

Genuine BMW X5 Coolant Temperature Sensor

Coolant Water Temperature Sensor

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BMW X5 Temperature Sensor Water/Oil
Part Number: 13621433076
$42.11 MSRP: $59.60
You Save: $17.49 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: 23-01-7-838-935
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2018 BMW X5 | 3.0i(E53), 3.0si(E70), 4.8i(E70), sDrive35i(F15), xDrive30i(E70), xDrive35d(E70), xDrive35i(E70), xDrive35i(F15), xDrive40e(F15), xDrive48i(E70), xDrive50i(E70), xDrive50i(F15)
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BMW X5 Coolant Temperature Sensor
Part Number: 13621433077
$42.11 MSRP: $59.60
You Save: $17.49 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Temperature Sensor, Coolant; Temperature Sending Unit, Temperature Sensor
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2000-2018 BMW X5 | 3.0i(E53), 4.4i(E53), 4.6is(E53), 4.8i(E70), 4.8is(E53), xDrive48i(E70), xDrive50i(E70), xDrive50i(F15)
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BMW X5 Temperature Sensor Water/Oil
Part Number: 13627580635
$42.11 MSRP: $59.60
You Save: $17.49 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2011-2023 BMW X5 | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV), 8 Cyl 4.4 L GAS, M50i(G05), sDrive35i(F15), xDrive35i(E70), xDrive35i(F15), xDrive40e(F15), xDrive40i(G05), xDrive50i(E70), xDrive50i(F15), xDrive50i(G05)
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BMW X5 Coolant Temperature Sensor
Part Number: 13627823993
$42.11 MSRP: $59.60
You Save: $17.49 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2014-2018 BMW X5 | xDrive35d(F15)
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BMW X5 Double Temperature Switch
Part Number: 13621703993
$22.73 MSRP: $31.10
You Save: $8.37 (27%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2000-2006 BMW X5 | 3.0i(E53), 4.4i(E53), 4.6is(E53), 4.8is(E53)
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BMW X5 Coolant Temperature Sensor
Part Number: 13628650714
$42.11 MSRP: $59.60
You Save: $17.49 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Temperature Sensor, Coolant; AC Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2024 BMW X5 | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV), 8 Cyl 4.4 L GAS, 8 Cyl 4.4 L MILD HYBRID EV-GAS (MHEV), M50i(G05), xDrive40i(G05), xDrive50i(G05)
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BMW X5 Coolant Temperature Sensor
Part Number: 13627797957
$42.11 MSRP: $59.60
You Save: $17.49 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Temperature Sensor, Coolant
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2014-2018 BMW X5 | xDrive35d(F15)
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BMW X5 Temperature Sensor
Part Number: 61277639893
$47.15 MSRP: $62.44
You Save: $15.29 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2016-2018 BMW X5 | xDrive40e(F15)
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BMW X5 TEMPERATURE SENSOR
Part Number: 61278741778
$49.52 MSRP: $65.58
You Save: $16.06 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Battery Temperature Sensor
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2021-2023 BMW X5 | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV), 8 Cyl 4.4 L GAS

BMW X5 Coolant Temperature Sensor

If you are looking for OEM BMW X5 Coolant Temperature Sensor, we highly recommend to shop with us. Not only do we offer the most budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW X5 Coolant Temperature Sensor that come backed by the manufacturer's warranty.

BMW X5 Coolant Temperature Sensor Parts Questions & Experts Answers

Temperature Sensor Water/Oil
13621433076
Q: What is the function and operation of the ECT sensor in relation to the ECM and coolant temperature on BMW X5?
A: The ECT sensor is a two-pin temperature sensor that supplies the coolant temperature to the ECM and the instrument cluster. It works in a similar way to an NTC (negative temperature coefficient) sensor; its resistance drops as the temperature of the coolant increases. The ECM changes ignition timing and air/fuel mixture with regard to the water temp; the sensor receives a 5-volt reference voltage, the voltage drop across the sensor varying with water temperature. If ECT sensor input is out of range, or unrealistic expected by the ECM, the MIL comes on whenever the OBD II fault criteria is met, and to ensure the engine runs, the ECM sets an assumed ECT value at 80 degree Celsius plus its offset 176 degrees f, while setting ignition timing to a conservative basic setting. It is mounted at the rear of the engine, to the left of cylinder 6, beneath the intake port and above the Intake Manifold. It is located under the intake manifold and thus to get to it, the manifold must be taken off after the engine has cooled. The ECT sensor connector has to be removed to eliminate the connection, and the sensor should then be unscrewed from the cylinder head, be careful as there will be some lose coolant. For reinstallation a new copper sealing washer has to be used, lost coolant has to be replenished and the DTC had to be checked and then cleared of its memory by resetting the ECM.