Exhaust Sensor Mercedes W177 W247 Pressure DPF Exhaust Hoses A0009055307

Exhaust Sensor Mercedes W177 W247 Pressure DPF Exhaust Hoses is an item from the Lambda probes and O2 sensors group, responsible for precise measurement of exhaust gas pressure in the DPF system of Mercedes vehicles. It enables the proper operation of the diesel particulate filter regeneration strategy, stabilizing engine performance parameters and reducing the risk of exhaust system failure.

Specifications and technical data

• SKU: A0009055307-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009055307
• Substitutable numbers: A0009055307, A 000 905 53 07
• Category: Oxygen Sensors

Function and role of the DPF exhaust pressure sensor

The DPF exhaust pressure sensor with hoses monitors the pressure difference before and after the particulate filter, sending a signal to the engine control unit. Based on this data, the ECU assesses the soot loading level of the filter, selects the fuel dosage, and initiates the regeneration process. A properly functioning component ensures:

• stable engine operation across the full load range,
• maintenance of proper exhaust gas flow through the DPF,
• reduction of the risk of overheating and clogging of the filter,
• consistency of emission parameters with the manufacturer's specifications.

Compatibility and fit for Mercedes W177 / W247

The presented sensor has been designed for the Mercedes W177 and W247 platforms, which translates into proper geometric and electrical fitment to the factory installation. The integrated hoses facilitate routing along the original paths in the engine bay, and the design, compliant with the manufacturer's solutions, minimizes the risk of leaks and reading errors in the control unit.

Thanks to maintaining the factory signal characteristics, installing this component allows for the restoration of correct exhaust pressure readings without the need for harness or software modifications. This is particularly important in modern power units, where the exhaust system and emission control system are strictly integrated with the engine control logic.

Condition, verification, and service application

The offered sensor is in used condition, making it an attractive service solution for users looking for an economical yet functional alternative to a new component. Such elements are particularly useful for:

• diagnosing DPF problems (exhaust pressure errors, limp mode),
• repairs after mechanical damage to the hoses or the sensor body,
• restoring the efficiency of the exhaust system after unsuccessful modifications.

A properly selected DPF exhaust pressure sensor allows for the elimination of typical symptoms such as power loss, frequent forced regenerations, or error messages regarding the emission control system.

Benefits of using an original Mercedes solution

The element from the Lambda probes and O2 sensors group dedicated to Mercedes ensures consistency with the vehicle's factory electronic architecture. In practice, this means:

• proper cooperation with the factory engine control unit,
• appropriate signal characteristics across the entire range of temperatures and loads,
• reduced risk of errors associated with incompatible replacements.

For workshops and individual users, this means a more predictable repair result and fewer service returns resulting from improper DPF system operation.

Expanding knowledge about electronics and sensors in Mercedes

If you are considering broader use of electronic components from the secondary market or want to better understand how to safely select used modules and sensors, it is worth checking out the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?. There, you will find practical tips regarding the assessment of condition, selection, and installation of used automotive electronics.

Other sensors for Mercedes – development of the measurement system

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 additional oxygen sensors, control probes, or exhaust gas composition measurement elements, check the available parts in the Lambda probes and O2 sensors Mercedes category.