Mercedes W177 W907 Camshaft Position Sensor 315 CDI 654920 Diesel A2549053600

Mercedes W177 W907 Camshaft Position Sensor 315 CDI 654920 Diesel is a precision component from the Engine sensors and switches category, designed for diesel engines. It is responsible for accurately monitoring the camshaft position, which is crucial for stable engine operation, correct fuel injection, and efficient powertrain control. This is a solution for users expecting a proven, factory-spec design tailored to the specifics of Mercedes diesel engines.

Specifications and technical data

• SKU: A2549053600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2549053600
• Substitutable numbers: A2549053600, A 254 905 36 00
• Fuel type: Diesel
• Part type: Sensor
• Category: Engine Sensors & Switches

Purpose and function in the engine system

The described camshaft position sensor is a component designed for diesel engines, where it works with the injection control system and compression ignition. Its task is to generate a signal regarding the camshaft position, which the engine control unit (ECU) uses for:

• precise determination of fuel injection timing,
• camshaft timing control,
• stabilization of idle speed and operation under load,
• reduction of vibrations and rough engine operation. Thanks to this, the diesel engine control system can operate within an optimized range, which translates into smoother operation, fuel efficiency, and a reduction in the risk of errors related to camshaft synchronization.

Benefits of using an original Mercedes sensor

Choosing a camshaft position sensor dedicated to a specific family of Mercedes engines provides a number of practical advantages:

• Factory geometry and signal characteristics – matched to the engine control maps used in diesel units.
• Stable operation under typical diesel operating conditions – from cold starts to long-term driving under load.
• Reduction of the risk of random controller errors resulting from incorrect camshaft position readings.
• Ability to restore proper engine operation in the event of symptoms such as starting difficulties, jerking, or power loss associated with incorrect camshaft synchronization. By using an original sensor from the Engine sensors and switches group, you minimize the risk of problems resulting from inaccurate parameter reproduction by aftermarket replacements of uncertain origin.

Product characteristics and condition

The presented camshaft position sensor is a used component, meaning it comes from disassembly, but it retains full functionality required for further operation. Such components are frequently chosen for the maintenance of modern diesel units, where compliance with factory specifications and the possibility of economical repair are important. As a part from the Engine sensors and switches group, this sensor is designed to operate in the demanding environment of the engine bay, taking into account vibrations, temperature changes, and contact with oil and fuel vapors. Proper mounting and correct electrical connection allow for quick restoration of proper cooperation with the engine control system.

Selection and application in workshop practice

When selecting a camshaft position sensor for a Mercedes with a diesel engine, it is crucial to match it to the specific version of the engine and the vehicle's electrical system. In workshop practice, this type of sensor is most often used in situations where there are:

• controller errors regarding camshaft to crankshaft synchronization,
• problems with starting on a warm or cold engine,
• rough idle operation,
• periodic power drops without other visible mechanical causes. Replacing the sensor is usually a service procedure of moderate difficulty, however, it requires maintaining cleanliness at the mounting point and checking the electrical harness. After installation, it is recommended to clear errors in the controller and verify current parameters in diagnostics. 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 position sensors, switches, or measuring elements, check the available parts in the Mercedes Engine sensors and switches category.

Substantive support and knowledge about diesel engines

When working with diesel units, it is worth expanding your knowledge about the characteristics of different designs, their durability, and operating costs. For a comparison of solutions used in other brands, including popular BMW engines, a comparative material describing performance, reliability, and the availability of aftermarket parts may be helpful – you can find it in the article BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels. This will allow you to better understand the specifics of modern diesels and consciously plan the service of your own car.