Pressure Sensor Mercedes W169 W245 MAP Manifold Air Intake A0061539828

Pressure Sensor Mercedes W169 W245 MAP Manifold Air Intake is a precision component from the Air and fuel intake sensors group, responsible for accurate measurement of manifold pressure in gasoline engines. A properly functioning MAP sensor allows the engine control unit to optimally adjust the fuel dosage and ignition timing, which translates into stable engine operation, better throttle response, and reduced fuel consumption. This component is designed for Mercedes W169 and W245 series vehicles powered by gasoline.

Specifications and technical data

• SKU: A0061539828
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0061539828
• Substitutable numbers: A0061539828, A 006 153 98 28, BG
• Fuel type: Petrol
• Category: Air Intake & Fuel Sensors

The role of the MAP sensor in a Mercedes gasoline engine

The Manifold Absolute Pressure (MAP) sensor is one of the key components of a gasoline engine control system. Based on the signal from this sensor, the controller calculates the engine load and then selects the appropriate fuel dosage and ignition parameters. In practice, this means:

• stable idle speed, without surging or engine stalling,
• smooth acceleration across the entire rev range,
• more predictable response to pressing the accelerator pedal,
• reduced excessive fuel consumption while maintaining proper dynamics.

In Mercedes W169 and W245 series gasoline engines, a correct manifold pressure reading is particularly important for maintaining the proper air-fuel mixture, which also affects the operation of the catalytic converter and exhaust emission levels.

Construction and technical characteristics

The offered sensor belongs to the Air and fuel intake sensors group, which means it works directly with the intake system and fuel dosage control. The design of the MAP sensor is based on a measuring element that reacts to pressure changes in the intake manifold and converts them into an electrical signal interpreted by the engine controller.

The solution used in this generation of Mercedes ensures:

• accurate pressure measurement across a wide range of engine loads,
• a stable output signal, which facilitates computer diagnostics,
• compatibility with the factory engine control software,
• the possibility of direct replacement for a worn-out component without modifying the installation.

Thanks to maintaining the factory signal characteristics, the controller does not require software adaptation – after correct installation, the sensor can immediately work in the existing system.

Application and symptoms of sensor wear

This MAP sensor is intended for Mercedes W169 and W245 series vehicles with gasoline engines. Its failure may manifest itself, among other things, by:

• a drop in power and sluggish throttle response,
• increased fuel consumption,
• uneven engine operation at idle,
• storing errors in the engine controller related to intake manifold pressure,
• the engine entering limp mode.

Replacing the sensor with a functional unit restores correct pressure readings, which helps stabilize the engine's operation and facilitates further diagnostics of potential faults in the intake or fuel system.

Benefits of using an original sensor in a Mercedes

Choosing a MAP air pressure sensor dedicated to the Mercedes W169 and W245 allows you to maintain consistency with the factory engine control system design. The most important advantages include:

• a secure fit to the intake manifold and electrical installation,
• preservation of the original engine operating characteristics,
• easier computer diagnostics thanks to parameter compliance with the manufacturer's documentation,
• reduced risk of air-fuel mixture problems in the gasoline engine.

The component from this group is especially recommended in situations where you want to maintain the factory operating parameters of the engine and ensure proper cooperation with other sensors in the intake and fuel system.

Condition, installation, and operation

The offered sensor comes from the used components segment, which allows for lower repair costs while maintaining compliance with the factory Mercedes solution. Before installation, it is recommended to:

• check the condition of the electrical connectors and the vehicle's wiring harness,
• check the tightness of the intake manifold and vacuum hoses,
• perform computer diagnostics after replacement to verify operating parameters.

A properly selected and installed MAP sensor helps maintain stable gasoline engine operating parameters, which is important for both driving comfort and the durability of the engine unit.

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

To better understand the relationship between the operation of the MAP sensor and fuel dosing and the general condition of the fuel system, it is worth reading the guide describing the diagnostics and operation of fuel system components – they are discussed in detail in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.