Mercedes W163 W210 R170 C215 Exhaust Oxygen Lambda Probe Sensor A0015406017

Mercedes W163 W210 R170 C215 Exhaust Oxygen Lambda Probe Sensor is a component from the Lambda probes and O2 sensors category, designed for precise control of the air-fuel mixture in selected Mercedes models. This used, original sensor allows you to maintain factory engine performance parameters, supporting stable operation of the fuel injection system and proper functioning of the exhaust emission control system. It is a solution for users who expect a proven component at a reasonable price, while maintaining the high build quality characteristic of the Mercedes brand.

Specifications and technical data

• SKU: A0015406017
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0015406017
• Substitutable numbers: A0015406017, A 001 540 60 17
• Category: Oxygen Sensors

Function and role of the lambda probe in a Mercedes

The lambda probe in Mercedes engines is responsible for real-time measurement of oxygen content in the exhaust gases and transmitting a signal to the engine control unit. Based on this, the ECU corrects the fuel dose, keeping the mixture in the optimal range, which translates into stable engine operation, correct throttle response, and reduced fuel consumption. In vehicles such as the W163, W210, R170, or C215, a properly functioning O2 sensor is crucial for maintaining engine smoothness and compliance with emission standards.

Benefits of using an original lambda probe

Using an original O2 sensor in a Mercedes helps avoid problems typical of aftermarket replacements with uncertain parameters. The factory signal characteristics, correct resistance of the measuring element, and appropriate response dynamics of the probe support:

• stable idle speed and smooth acceleration,
• efficient catalytic converter operation by maintaining the correct exhaust gas composition,
• reduced risk of engine control unit errors related to the fuel mixture,
• more predictable fuel consumption in daily use.

For the user, this means more predictable vehicle behavior and easier diagnostics in the event of other faults, as the signal from the probe remains consistent with the manufacturer's specifications.

Selection and vehicle compatibility

To correctly select a lambda probe for a specific Mercedes, it is worth using the OEM number or interchangeable numbers, as well as vehicle data (model, year, engine type). This helps avoid issues with cable length, connector type, or the operating characteristics of the measuring element. In case of doubt, it is recommended to compare the existing probe with the offered item and verify compatibility using the manufacturer's catalog numbers or the VIN.

If you want to better understand how to safely choose used sensors and electronic modules, how to check hardware and software compatibility, and what to pay attention to during installation, check out our guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Condition, verification, and installation

The offered lambda probe is a used item, which in practice means it has been removed from a vehicle and verified for its suitability for further use. This type of component, when properly selected, can be a cost-effective alternative to new parts, especially for older vehicle generations where reasonable repair costs are important while maintaining appropriate quality. Installing the probe requires using the correct wrench, exercising caution with the thread, and checking the exhaust system for leaks after installation.

Expanding the exhaust measurement system in a Mercedes

If you are planning a comprehensive repair or upgrade of the exhaust and emission control area in your Mercedes and need other components from the same group, such as additional O2 sensors, pre- and post-catalytic converter probes, or exhaust gas composition measurement elements, check the available parts in the Mercedes Lambda probes and O2 sensors category.