Temperature Sensor BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 Water / Oil 1433076

Temperature Sensor BMW E46 E60 E81 E87 E90 E91 F10 F20 Water / Oil is an original component from the Air and fuel intake sensors group, designed for precise monitoring of engine operating parameters in selected BMW models. Thanks to its factory signal characteristics, it ensures stable cooperation with the engine electronics and allows for proper mixture regulation and protection of components.

Specifications and technical data

• SKU: 1433076
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1433076
• Substitutable numbers: 13621433076, 1433076, 2301783893513620150974, 7838935, 0150974
• Category: Air Intake & Fuel Sensors

Purpose and function in the engine system

The water or oil temperature sensor in BMW engines is responsible for transmitting information about current thermal conditions to the controller. Based on this, the ECU corrects the fuel dose, ignition timing, and accessory operating strategy, which affects the engine's refinement, fuel consumption, and safety. Using a dedicated sensor for the E46, E60, E81, E87, E90, E91, F10, and F20 series allows for maintaining compatibility with factory controller maps.

A properly functioning element of this type is particularly important for:

• cold engine starting and the warm-up phase,
• maintaining a stable operating temperature,
• protection against overheating and excessively low operating temperatures,
• diagnosing errors related to the fuel and intake system.

Benefits of using an original BMW sensor

Using an original water or oil temperature sensor in a BMW ensures matched resistance characteristics and correct signal interpretation by the controller. This reduces the risk of incorrect readings, uneven engine operation, or unnecessary warning lights. Factory fitment for a specific BMW generation translates into predictable engine behavior across the full temperature range.

The element from this group, although used, can be a good choice for professional repairs when you want to maintain the original vehicle specification and compatibility with the existing wiring harness and controller.

Condition, fitment, and installation aspects

The offered sensor comes from disassembly and bears the BMW manufacturer's marking, which facilitates verification of compatibility with a specific engine version. Used condition means that the element was previously in operation but is suitable for further use after proper installation. Before installation, it is recommended to perform a standard check of the socket, seals, and electrical connectors in the vehicle to ensure system tightness and stable electrical contact.

It is always worth confirming the sensor selection based on the OEM part number or interchangeable numbers in the BMW service documentation or by VIN, which minimizes the risk of ordering errors.

Integration with the intake and fuel system

As an element from the Air and fuel intake sensors group, this sensor works with other components responsible for mixture preparation and engine operating condition control. Correct temperature readings are essential for:

• accurate fuel dosing under various load conditions,
• proper operation of exhaust emission control systems,
• diagnosing faults in the intake and fuel system.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional temperature sensors, pressure sensors, or measuring elements in the intake system, check the available parts in the BMW Air and fuel intake sensors category.

Why consider used electronics and sensors?

When repairing modern BMWs, it is often cost-effective to use proven, used electronic components, especially when you want to maintain the original specification and reduce costs. In the case of temperature sensors, it is crucial that they come from a reliable source and are consistent with the factory engine controller parameters. If you want to better understand when choosing used electronic components makes sense, how to select them, and what to pay attention to when purchasing, see the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?