Crankshaft Sensor Mercedes C118 W177 W213 W247 Position Sensor A6549050100

Crankshaft Sensor Mercedes C118 W177 W213 W247 Position Sensor is a precision component from the Engine sensors and switches group, responsible for accurate crankshaft position reading and stable engine operation. The offered Mercedes brand component comes from dismantling, which allows for combining reasonable costs with maintaining the factory characteristics of the engine control system.

Specifications and technical data

• SKU: A6549050100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6549050100
• Substitutable numbers: A6549050100, A 654 905 01 00
• Category: Engine Sensors & Switches

Purpose and function in the engine system

The crankshaft position sensor in Mercedes C118, W177, W213, and W247 models is responsible for generating a reference signal for the engine control unit. Based on its readings, the ECU determines, among other things, the fuel injection timing and ignition angle, which translates into:

• stable idle speed,
• proper dynamics during acceleration,
• consistent operation of systems supporting engine performance.

A functional sensor in this position is crucial for proper starting and smooth operation of the engine, especially in modern Mercedes designs where control is fully electronic.

Benefits of using an original Mercedes sensor

Using an original crankshaft position sensor from the Engine sensors and switches group ensures the maintenance of parameters specified by the vehicle manufacturer. In practice, this means:

• a reliable input signal for the engine control unit,
• reduced risk of diagnostic errors and emergency mode,
• better operational repeatability compared to cheap replacements.

The used OEM component is a particularly attractive solution for maintenance repairs, where both quality and control of service costs are important.

Condition, verification, and preparation for installation

The offered sensor is a used part, coming from a Mercedes vehicle, which allows for maintaining structural compatibility with the factory engine system. Before being offered for sale, this type of component is standardly verified for:

• lack of mechanical damage to the housing and connector,
• condition of the connection socket,
• possibility of correct seating in the mounting location.

This type of preparation reduces the risk of installation problems and facilitates quick replacement in workshop or service conditions.

Application in diagnostics and repairs

The crankshaft position sensor in Mercedes C118, W177, W213, and W247 series vehicles is often replaced in case of symptoms such as starting difficulties, engine stalling, or sporadic errors saved in the controller's memory. Replacing it with a functional component allows to:

• restore the correct reference signal for the ECU,
• stabilize engine operation across the full RPM range,
• limit the need for further, costly diagnostics.

For workshops specializing in the Mercedes brand, this is a practical service component that is worth having in constant availability as a spare part of confirmed origin.

System expansion – other Mercedes engine sensors

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 temperature sensors, boost pressure sensors, or switches related to engine operation, check the available parts in the Mercedes engine sensors and switches category.

Technical knowledge and part selection

When selecting elements from the sensor and engine equipment group, it is worth relying on reliable technical sources and experience from the secondary market. To compare the operating characteristics of different diesel units and the impact of spare part quality on operating costs, you can refer to the guide material: BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels: performance, reliability, and secondary market parts costs. Although it concerns a different brand, it well illustrates the importance of proper component selection in modern engines.