Mercedes W163 A209 W639 Engine Oil Level Sensor A0041536628

Mercedes A209 Engine Oil Level Sensor is a component from the Engine Sensors and Switches group, designed for precise monitoring of oil quantity in the power unit. Maintaining a correct oil level reading is crucial for protecting the engine from seizure, which is why choosing an original Mercedes solution is a sensible and technically safe approach to repair.

Specifications and technical data

• SKU: A0041536628
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0041536628
• Substitutable numbers: A0041536628, A 004 153 66 28
• Category: Engine Sensors & Switches

Function and Application of the Oil Level Sensor

The engine oil level sensor in Mercedes models is responsible for continuously measuring the amount of lubricant in the oil pan and transmitting this information to the control unit and instrument cluster. A properly functioning component allows for:

• early detection of critically low oil levels,
• stable operation of engine monitoring systems,
• reduction of overheating and accelerated component wear risks.

Thanks to this, the Mercedes A209 engine oil level sensor supports safe operation of the power unit and facilitates diagnostics in case of warning messages appearing on the dashboard.

Benefits of Using an Original Mercedes Sensor

This component from the Engine Sensors and Switches group, dedicated to Mercedes, ensures proper fitment with the factory lubrication system. The appropriate electrical and mechanical characteristics translate into:

• reliable oil level readings across a wide range of operating temperatures,
• correct interaction with the onboard electronics,
• reduction of "oil level" error risks resulting from incompatible aftermarket parts.

Using an OEM component is a solution that combines technical correctness with a favorable repair cost, while maintaining the original logic of the oil monitoring system.

Component Condition and Installation Aspects

The offered sensor is in Used condition, meaning it has been removed from a vehicle and verified for its suitability for further use. This type of part is particularly attractive when aiming to reduce service costs while maintaining the original manufacturer's specifications.

In practice, installation typically involves replacing the component in or around the oil pan, adhering to service procedures regarding sealing and torque specifications. A correctly selected sensor allows for installation without electrical system modifications, which reduces repair time and minimizes the risk of subsequent leaks or reading errors.

Selection by Numbers and Compatibility

When selecting an oil level sensor for a Mercedes, it is crucial to rely on the OEM part number and available interchange numbers. This allows for verification of compatibility with the specific engine version and vehicle year, as well as avoiding problems with installation and diagnostics. If in doubt, it is advisable to compare the markings with the service documentation or use a VIN search.

To better understand how to safely use used electronic and measurement components in a car, including sensors, the following guide will be helpful: Used Automotive Electronics – ECU Modules and Second-Hand Sensors, which discusses selection by VIN/OEM, compatibility issues, and practical installation examples.

Expanding Engine Service

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 temperature sensors, pressure switches, or additional position sensors, check the available parts in the Mercedes Engine Sensors and Switches category.