Mercedes W176 Air Intake Pressure Sensor Switch Unit A0091534828

Mercedes W176 Air Intake Pressure Sensor Switch Unit is a precision intake system component responsible for reliable measurement of the air pressure entering the engine. This allows the ECU to accurately determine the fuel dosage, which translates into stable engine operation, proper dynamics, and exhaust emission control. This item from the Air intake and fuel sensors group is designed for installation in the front part of the vehicle, within the intake system area.

Specifications and technical data

• SKU: A0091534828
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0091534828
• Substitutable numbers: A0091534828, A 009 153 48 28, 0261230356, 0 261 230 356
• Location on the vehicle: Front
• Category: Air Intake & Fuel Sensors

Function and role of the boost pressure sensor

The boost pressure sensor in the Mercedes W176 is responsible for real-time measurement of air parameters in the intake system, which is crucial for the proper operation of a turbocharged engine. A properly functioning component allows the engine control unit to:

• precisely control boost pressure and fuel dosage,
• maintain stable power and torque under various load conditions,
• reduce the risk of turbocharger overboost,
• maintain compliance with exhaust emission standards.

As a result, a fully functional boost pressure sensor has a direct impact on engine refinement, throttle response, and the safety of the entire forced induction system.

Purpose and vehicle placement

The presented sensor is intended for use in the Mercedes W176 model and is mounted in the front part of the vehicle, in the intake system area. This placement allows for rapid reading of air pressure changes, which is particularly important during dynamic driving and frequent changes in engine load.

The component belongs to the Air intake and fuel sensors group, meaning it works in conjunction with other components responsible for preparing the air-fuel mixture. Correct installation in the designated location ensures proper operation both in daily use and in more demanding conditions.

Product characteristics and benefits of use

The offered sensor is an original component designed for the Mercedes W176 intake system. Using a dedicated component instead of random replacements allows for maintaining factory engine performance parameters and reduces the risk of ECU errors.

• Compatibility with the vehicle's electrical and mechanical systems.
• Stable pressure readings across the full engine operating range.
• Integration with factory engine control unit software.
• Possibility to use the OEM part number and interchangeable numbers to verify compatibility via VIN.

For workshops and users, this means easier diagnostics, a lower risk of repeated disassembly, and more predictable repair results. Selecting the component based on the OEM number helps avoid issues with mismatched connectors or different measurement characteristics.

Condition, installation, and service application

The product is offered as a used component, which provides an attractive cost-effective solution while maintaining compliance with factory specifications. Such components are frequently chosen by workshops specializing in the Mercedes brand when both quality and repair economy are prioritized.

Due to its location in the front of the vehicle, replacing the sensor is generally relatively simple for an experienced mechanic. After installation, it is recommended to:

• check the intake system for leaks,
• clear any potential errors in the engine control unit,
• verify operating parameters in real-time using diagnostic tools.

Selection by part numbers and technical knowledge

When selecting a boost pressure sensor for a Mercedes W176, it is crucial to use the OEM part number and interchangeable numbers, as well as the vehicle's VIN data. This helps avoid mistakes resulting from differences between engine versions or production years.

If you want to deepen your knowledge on how to safely and consciously use used modules and sensors, check out our guide: Used automotive electronics – ECU modules and second-hand sensors in practice. There you will find information on selection by VIN/OEM, hardware and software compatibility, and practical installation tips.

For a better understanding of how the availability of used components affects repair time and workshop workflow, it is also worth reading the article: how the availability of used OEM parts shortens vehicle service time.

Related items from the same group

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