Mercedes A C E Class W169 W203 W211 Temperature Sensor Dew Point A2118300572

Mercedes A C E Class W169 W203 W211 Temperature Sensor Dew Point is an original component from the Temperature sensors category, designed for installation in the rear part of the vehicle. Engineered for precise temperature measurement, it supports the stable operation of comfort and control systems in Mercedes cars, ensuring predictable vehicle behavior under various operating conditions.

Specifications and technical data

• SKU: A2118300572
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2118206026
• Substitutable numbers: A2118300572, A 2118300572, A 211 830 05 72, AS
• Location on the vehicle: Rear
• Category: HVAC Temperature Sensors

Purpose and function of the sensor

The presented temperature sensor is dedicated to Mercedes compact and mid-size models, including the W169, W203, and W211 series, where it is responsible for accurate temperature reading in the rear zone of the vehicle. A properly functioning sensor allows the vehicle's control units to continuously adjust the operation of related systems, which translates into stable driving parameters and user comfort.

Its placement in the rear area of the vehicle allows for reliable temperature measurement in this part of the body, which is essential for the operation of comfort systems, ambient condition monitoring systems, and selected diagnostic functions. Replacing a worn-out component with a functional sensor restores correct readings and eliminates error messages related to temperature.

Construction and vehicle compatibility

The sensor has been developed in accordance with Mercedes manufacturer standards, ensuring it maintains factory electrical and geometric parameters. A properly matched connector and housing shape allow for secure seating in the designated mounting socket in the rear of the vehicle, without the need for installation modifications.

The component has an assigned OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific equipment version. Before purchasing, it is recommended to compare the markings with the vehicle's specification to ensure full compatibility with the given model configuration.

Benefits of using an original temperature sensor

Using a dedicated temperature sensor in the rear of the body provides a number of practical benefits:

• maintaining stable operating parameters for comfort and control systems,
• reducing the risk of errors related to incorrect temperature readings,
• maintaining consistency with the vehicle's factory electrical installation,
• easier diagnostics in the future thanks to compliance with service documentation.

As an item in the Temperature sensors category, this product is a vital link in the vehicle's measurement chain – its proper operation affects the predictability of the car's response in changing ambient conditions.

Condition of the component and practical application

The offered temperature sensor is a used part, which allows for an economical replacement of a faulty component while maintaining compliance with the original manufacturer's specification. This is a particularly advantageous solution when servicing older generations of Mercedes models, where both functionality and reasonable repair costs are important.

A properly selected and installed sensor helps reduce unnecessary load on control systems and supports the uniform operation of systems dependent on temperature measurement. As a result, the vehicle retains predictable performance characteristics, and the driver receives consistent information about the operating status of individual components.

Related components and technical knowledge

If you are planning a comprehensive repair or upgrade of the body area and measurement systems in your Mercedes and need other components from the same group, such as additional sensors, reading modules, or installation elements, check out the available parts in the Mercedes temperature sensors category.

When diagnosing temperature-related faults, it is also worth paying attention to the condition of the cooling system and airflow around the body. The impact of high temperatures on vehicle operation and the possibilities for cost-effective repairs using used components are described in more detail in our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which can serve as a practical supplement to your knowledge when planning your car's service.