Mercedes W204 OM274 Petrol Intake Manifold Air Presure Sensor MAP A0081538928

Mercedes W204 Benzyna OM274 MAP Pressure Sensor is a component from the air and fuel intake sensors category, responsible for precise measurement of manifold absolute pressure in gasoline engines. A properly functioning MAP sensor ensures stable engine operation, correct fuel dosing, and appropriate response to load. This component is designed for gasoline fuel systems, allowing for the maintenance of proper operating parameters for the OM274 engine in the Mercedes W204.

Specifications and technical data

• SKU: A0081538928
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0081538928
• Substitutable numbers: A0081538928, A 008 153 89 28
• Fuel type: Petrol
• Category: Air Intake & Fuel Sensors

Role of the MAP Pressure Sensor in the OM274 Gasoline Engine

The MAP pressure sensor in the Mercedes W204 with the OM274 engine works with the engine control system, providing information about the current intake manifold pressure. Based on this data, the control unit calculates the fuel injection amount, ignition timing, and mixture corrections. This enables:

• maintaining stable idle speed,
• smooth acceleration without jerking,
• reducing fuel consumption while maintaining adequate dynamics,
• reducing exhaust emissions through proper mixture combustion.

A functional sensor from the air and fuel intake sensors category is crucial for the correct operation of the gasoline fuel system, especially in modern units like the OM274.

Benefits of Using an Original Mercedes Sensor

Using a sensor dedicated to the Mercedes W204 ensures correct measurement characteristics and compatibility with the engine control unit software. In practice, this means:

• accurate representation of intake manifold pressure across the full load range,
• proper cooperation with other components of the intake and fuel system,
• reduced risk of errors in the control unit memory and limp-home mode,
• easier diagnostics for further service work.

For gasoline engines, the stability of the MAP sensor signal is particularly important, as it directly affects the mixture composition and the smoothness of the engine's operation.

Condition, Application, and Installation Aspects

The offered item is in used condition, allowing for economical repair of the intake system while maintaining appropriate component quality. The sensor is designed for gasoline powered engines, as per the fuel type parameter. Before installation, a standard service procedure is recommended, including:

• verification of the mounting socket in the intake manifold,
• inspection of the wiring harness and connector for corrosion and mechanical damage,
• clearing errors in the control unit and adapting parameters after sensor replacement, if required by the manufacturer's procedure.

A correctly installed MAP pressure sensor allows for the restoration of proper engine control system operation, reducing symptoms such as power loss, increased fuel consumption, or uneven idling.

Diagnostics and Link to the Fuel System

Problems with the intake manifold pressure sensor are often related to irregularities in the fuel or intake system. If errors related to the mixture, power loss, or limp-home mode occur, a comprehensive diagnosis should be performed. The guide describing the principles of operation and maintenance of the fuel system may be helpful – detailed information can be found in the article “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair”, which discusses, among other things, selecting components by OEM numbers and typical service procedures.

Related Mercedes Air and Fuel Intake Sensors

If you also need other components from the air and fuel intake sensors category dedicated to this brand, check our offer – the full list of products can be found at the link Mercedes air and fuel intake sensors. This will allow you to select a cohesive set of components for the intake and fuel system in your car.

When choosing used components, it is worth consciously comparing them with new parts in terms of cost and durability. If you want to better understand the differences between these solutions, the guide “Car Parts – New or Used? Comparing Costs, Quality, and Durability” will be helpful, discussing practical aspects of selecting replacement components.