Coolant Level Switch BMW E60 E61 E65 E70 E71 E83 E87 E90 Coolant Sensor 7553919

Coolant Level Switch BMW E60 E61 E65 E70 E71 E83 E87 E90 Coolant Sensor is an original air conditioning cooling system component designed for precise monitoring of fluid presence in the system. Thanks to its factory-fit for selected BMW models, it ensures stable cooperation with the vehicle's electronics and predictable behavior of the entire system. Using an OEM component is a sensible choice for maintenance when you want to maintain operating parameters consistent with the manufacturer's specifications.

Specifications and technical data

• SKU: 7553919-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7553919
• Substitutable numbers: 17137553919, 7553919, 17117526845, 7526845, 17110152373, 0152373, 17137800097, 7800097, 17137524812, 7524812, 17137532124, 7532124, 17117546548, 7546548, 17130409622, 0409622
• Category: Other Engine Cooling Components

Purpose and role in the BMW air conditioning system

The presented Coolant Level Switch BMW E60 E61 E65 E70 E71 E83 E87 E90 Coolant Sensor is responsible for monitoring the operating conditions of the medium in the system, which is crucial for the safety of the compressor and the proper operation of the air conditioning controller. In BMW E60, E65, E70, E81, E87, and E90 series vehicles, a properly functioning sensor allows you to:

• maintain the correct operating parameters of the air conditioning system,
• minimize the risk of the compressor operating under unfavorable conditions,
• ensure consistency of readings with other sensors in the system,
• limit the appearance of errors in the air conditioning controller's memory.

As a result, the air conditioning system maintains stability, and the diagnosis of potential faults is simpler and more predictable.

Compatibility and interchangeable numbers

The sensor is an OEM BMW component, which means it has been designed for full integration with the factory wiring harness and control software. The part has a dedicated OEM number and a set of interchangeable numbers, allowing it to be used as a replacement in various equipment versions and model years within the indicated models. This facilitates the selection of the correct component during repair or system upgrades.

Before purchasing, it is worth comparing the markings with the removed part or service documentation to confirm full compatibility with your specific vehicle configuration.

Installation and operational characteristics

As an original component, the Coolant Level Switch BMW E60 E61 E65 E70 E71 E83 E87 E90 Coolant Sensor is adapted for installation in factory mounting points without the need for system modifications. Typical installation features of this type of component include:

• a dedicated electrical connector matching the BMW wiring harness,
• a design adapted for operation in a coolant or air conditioning medium environment,
• a housing designed for resistance to typical under-hood conditions (temperature, moisture).

The used condition of the part allows for an economical repair while maintaining the original operating characteristics of the system. Replacing the sensor is usually a service procedure of moderate difficulty, performed during work on the cooling or air conditioning system.

Application in diagnostics and service

A functional Coolant Level Switch BMW E60 E61 E65 E70 E71 E83 E87 E90 Coolant Sensor is essential when diagnosing problems with cooling efficiency, improper compressor operation, or error messages appearing in the air conditioning system. In workshop practice, replacing this element is often recommended when:

• errors related to medium parameters in the system appear,
• sensor readings are unstable or inconsistent with other data,
• the air conditioning system is operating in emergency mode.

Using an original BMW component reduces the risk of compatibility issues and facilitates subsequent computer diagnostics.

Expanding BMW air conditioning system service

If you are planning a comprehensive repair or upgrade of the air conditioning system area in your BMW and need other elements from the same group, such as additional sensors, hoses, or mounting elements, check the available parts in the Other BMW category.

For a comparison of solutions used in other brands and sports segments, as well as to better understand the differences in the design of powertrains and their accompanying systems, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how premium manufacturers design key components and their accessories.