The Mercedes W204 W212 W246 W639 Heater Temperature Sensor is an original part from the temperature sensors category, designed for heating systems in select Mercedes models. This used OEM component ensures the heater's operating parameters remain consistent with the vehicle's factory settings, contributing to stable air conditioning performance and thermal comfort in the cabin.
Specifications and technical data
- SKU: A2208300772
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2208300772
- Substitutable numbers: A2208300772, A 220 830 07 72
- Category: HVAC Temperature Sensors
Application of the Mercedes Heater Temperature Sensor
The Mercedes Heater Temperature Sensor is responsible for precisely reading the temperature of the heating medium within the HVAC system. Based on its signal, the climate control unit regulates the heater's operation, air mixing, and airflow distribution to different interior zones. A properly functioning sensor allows for:
- stable temperature set by the user,
- smooth transitions between heating and cooling modes,
- even interior heating without sudden temperature fluctuations.
Compatibility with Mercedes W204, W212, W246, W639 Models
This sensor is designed for use in popular Mercedes C-Class, E-Class, B-Class models, as well as commercial vehicles from the Vito/Viano family, identified by body codes W204, W212, W246, and W639. This makes it a practical solution for both workshops specializing in the brand and individual users looking for a part tailored to a specific vehicle generation.
Its original Mercedes-Benz OE origin means the sensor's geometry, temperature characteristics, and mounting method comply with the manufacturer's factory requirements. This facilitates installation in place of the old component and reduces the risk of electrical or mechanical compatibility issues.
Technical Characteristics and OEM Advantages
The sensor from the temperature sensors category operates in close proximity to the heater, where it is exposed to variable thermal conditions and moisture. Manufacturing to OEM standards ensures:
- appropriately selected resistance characteristics as a function of temperature,
- a stable signal for the climate control unit,
- resistance to typical operational loads in the heating system.
For workshops and service centers, it is also important that the part has a dedicated OEM part number and associated replacement numbers, which simplifies selection using manufacturer catalogs and service systems without the need for aftermarket parts with uncertain parameters.
Used Condition – An Informed Choice for HVAC Systems
The offered heater temperature sensor is used, allowing for an economical repair of the heating system while maintaining the original manufacturer's specifications. For Mercedes electronics and measurement components, it is often more cost-effective to use a tested OEM part from disassembly than to install an inexpensive aftermarket replacement with unverified characteristics.
Before installation, the standard service procedure is recommended: check the electrical system, connectors, and perform a post-replacement computer diagnostics to confirm proper sensor cooperation with the climate control module.
Technical Support and Selection of Used Electronics
If you wish to expand your knowledge on selecting and installing used modules and sensors in modern cars, it is worth reading the guide: used automotive electronics – second-hand ECU modules and sensors. The article discusses, among other things, selection by OEM numbers, compatibility issues, and practical installation tips.
Other Mercedes Temperature Sensors
If you are also looking for other parts from the temperature sensors category dedicated to this brand, check out our offer for Mercedes temperature sensors. This will allow you to easily assemble a set of components for comprehensive service of the air conditioning and heating system in your vehicle.
