Description
Lambda Sensor Mercedes W203 W209 W211 is an original oxygen sensor from the Lambda Sensors and O2 Sensors group, designed for precise mixture control in Mercedes engines. The used OEM component ensures factory fit, stable operating parameters, and restores proper fuel system operation and exhaust emission reduction. It’s a practical solution for users who want to maintain factory specifications without investing in a new part.
Specifications and technical data
- SKU: rhd-A0015408717
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A0015408717
- Substitutable numbers: A0015408717, A 001 540 87 17, 0 258 006 359, 0258006359, 0 258 006 360, 0258006360
- Category: Oxygen Sensors
Technical Characteristics of the Lambda Sensor
The Lambda Sensor Mercedes W203 W209 W211 Oxygen Sensor Lambda Probe operates within the exhaust system, monitoring oxygen content in the exhaust gases and sending signals to the engine control unit. This allows the engine to adjust the fuel dose in real-time, maintaining the mixture within the optimal range. A properly functioning sensor supports stable idling, correct acceleration, and reduces excessive fuel consumption.
This component belongs to the Lambda Sensors and O2 Sensors group, meaning it is designed to operate at high temperatures and in exhaust environments, with appropriate resistance to thermal and chemical loads. The OEM construction ensures the correct signal characteristics required by the control unit used in Mercedes C-Class, CLK, and E-Class models of the specified generation.
Compatibility and Fitment for Mercedes W203, W209, W211
The offered lambda sensor is designed for Mercedes vehicles of the W203, W209, and W211 series, where it works with the factory engine control unit. Using an original oxygen sensor minimizes the risk of diagnostic errors, adaptation problems, and incorrect mixture corrections that can occur with aftermarket alternatives having different characteristics.
Selection by OEM number and interchangeable part numbers allows verification of compatibility with specific engine and model year versions. In practice, this means that once correctly matched, the part can be installed in place of the old sensor without the need for modifications to the wiring or control unit software.
Condition, Application, and Benefits of Installation
The product is offered as a used lambda sensor, providing a sensible compromise between cost and maintaining original manufacturer specifications. Such components are particularly useful for:
- clearing errors related to incorrect mixture composition and emission control,
- restoring proper exhaust system operation after a failure of the old sensor,
- economical repairs of older Mercedes W203, W209, W211 models.
A functional oxygen sensor helps reduce excessive fuel consumption, lowers the risk of catalytic converter damage, and improves engine running smoothness. In many cases, replacing a worn O2 sensor is one of the key steps in diagnosing problems with power loss, fluctuating idle speeds, or increased exhaust emissions.
How to Safely Select Used Electronics and Sensors
When choosing a used lambda sensor, pay attention to the compatibility of the OEM number, interchangeable part numbers, and the version used in the specific engine. Diagnostic procedures after installation are also helpful – reading live data, checking fuel trims, and potentially clearing adaptations. Detailed guidance on selecting and installing used sensors and control modules can be found in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?
Expanding the Exhaust Gas Measurement System in Mercedes
If you are planning a comprehensive repair or upgrade of the exhaust system and emission control area in your Mercedes and need other components from the same group, such as additional oxygen sensors, pre-catalyst sensors, or post-catalyst sensors, check the available parts in the Mercedes Lambda Sensors and O2 Sensors category.
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