Mercedes-Benz C S Class W203 W220 Air Intake Temperature Sensor A2208300372

Mercedes-Benz C S Class W203 W220 Air Intake Temperature Sensor is a component from the Air intake and fuel sensors group, responsible for the precise reading of intake air temperature in Mercedes vehicles. A properly functioning sensor supports stable engine operation, correct fuel dosing, and smooth engine performance. This solution is intended for users who expect a proven component with factory-standard operating characteristics.

Specifications and technical data

• SKU: A2208300372
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2208300372
• Substitutable numbers: A2208300372, A 220 830 03 72, EM
• Category: Air Intake & Fuel Sensors

Function and role of the air temperature sensor

The intake air temperature sensor in Mercedes C-Class and S-Class models, including the W203 and W220, is responsible for transmitting information about the current intake air temperature to the engine control unit. Based on this data, the control system selects the appropriate fuel dose and corrects operating parameters, which promotes stable starting, smooth acceleration, and limits excessive fuel consumption.

A functional element from this group helps to reduce typical symptoms of improper operation, such as uneven idle, power drops, or increased fuel consumption under specific temperature conditions. Replacing a worn sensor with a component featuring the correct measurement characteristics is a simple way to restore the proper operation of the intake system.

Benefits of using a dedicated sensor in a Mercedes

Using an air temperature sensor matched to the control systems in Mercedes C-Class and S-Class vehicles ensures:

• signal consistency with the requirements of the factory engine control unit,
• correct response to air temperature changes in various operating conditions,
• better engine stability during cold and warm operation,
• reduced risk of errors related to the air-fuel mixture.

For users who want to maintain the original engine performance characteristics, choosing a sensor from the group dedicated to Mercedes vehicles is a more predictable solution than using random replacements. Consistency with factory control logic translates into more predictable vehicle behavior during daily driving.

Product characteristics and application

The offered air temperature sensor belongs to the Air intake and fuel sensors group, which means it works directly with the intake and fuel supply systems. It is intended for installation in Mercedes vehicles that feature this type of design solution in the engine control system.

The item comes from a used vehicle, which is a frequently chosen solution for electronics and engine accessories in premium cars. This allows for a favorable cost-to-functionality ratio while maintaining operating parameters close to factory specifications.

Selection and installation of the air temperature sensor

When selecting an air temperature sensor for a Mercedes, it is crucial to match it to the specific engine control system and body version. In practice, this means verifying compatibility with your vehicle model and comparing parameters with the factory-installed component. This helps avoid issues with control unit errors or incorrect responses to temperature changes.

In most cases, the installation of the sensor is not complicated and comes down to correctly seating it in the designated socket and connecting the electrical connector. Proper seating in the intake system is essential for obtaining a reliable temperature reading, so it is worth paying attention to tightness and stable mounting.

More items from the same group and technical advice

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

If you are considering using pre-owned electronic components in your car, including sensors, controllers, or modules, it is worth learning practical tips regarding their selection and verification. Useful information can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which discusses what to look for when choosing used automotive electronics.

Additional information on the operation and selection of engine accessories in popular models of this brand is also provided by the guide Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C-Class and E-Class models?, where you will find practical tips on maintaining the efficiency of Mercedes powertrains.