Ford Focus Mk3 Mondeo Mk4 DPF Exhaust Pressure Sensor 1786775 AV61-5L200-AB

The Ford Focus Mk3 Exhaust Pressure Sensor DPF is an original exhaust system component from the lambda sensors and O2 sensors group, designed for precise monitoring of exhaust pressure before and after the diesel particulate filter. A correctly functioning DPF pressure sensor is crucial for stable engine operation, proper filter regeneration, and maintaining compliance with emission standards.

Specifications and technical data

• SKU: 1786775
• Mark: Ford
• Condition: Used
• OEM Part Number: 1786775
• Substitutable numbers: 1786775, AV61-5L200-AB, AV615L200AB
• Category: Oxygen Sensors

Role of the DPF Exhaust Pressure Sensor in Ford Focus Mk3

The DPF exhaust pressure sensor in the Ford Focus Mk3 works in conjunction with lambda sensors and the engine control unit (ECU), providing accurate information about the pressure difference before and after the diesel particulate filter. Based on this data, the ECU determines the timing and intensity of DPF regeneration, which affects:

• maintaining correct engine power across the full load range,
• stable exhaust system operation without excessive backpressure increase,
• reduced fuel consumption due to properly executed soot burn-off cycles,
• lowered risk of DPF clogging and the engine entering limp mode.

A functional exhaust pressure sensor is therefore an important element not only for emissions but also for driving comfort and the durability of the entire exhaust system.

Benefits of Using an Original Ford Sensor

The offered DPF exhaust pressure sensor for Ford Focus Mk3 comes from the Ford OE line, meaning it retains factory operating parameters and is fully compatible with the engine control unit's software. In practice, this translates to:

• reliable electrical fitment – correct signal values for the ECU, without the need for adaptation,
• proper cooperation with lambda sensors and O2 sensors in the same system,
• stable pressure readings across the entire temperature and load range,
• reduced risk of diagnostic errors related to incorrect aftermarket part characteristics.

By adhering to OEM specifications, the sensor allows for the restoration of correct DPF system operation after experiencing exhaust pressure-related faults or failed filter regeneration.

Used Condition – A Conscious Choice for Your Exhaust System

This part is offered in used condition, representing a sensible compromise between repair cost and maintaining OEM quality. With proper vehicle diagnostics and system verification:

• a used exhaust pressure sensor can effectively replace a damaged factory component,
• it allows for reduced service costs while maintaining original manufacturer specifications,
• it serves as a test part when diagnosing DPF and lambda sensor issues.

For more practical tips on selecting and installing used sensors and control modules, refer to our guide: Used Automotive Electronics – Second-Hand ECUs and Sensors.

Lambda Sensor and O2 Sensor Selection, Compatibility, and Integration

This sensor model is designed to work with the lambda sensor and O2 sensor system in the Ford Focus Mk3, ensuring:

• data consistency transmitted to the engine control unit from various emission sensors,
• easier computer diagnostics – pressure and exhaust gas composition readings are predictable and consistent with service documentation,
• reduced risk of false P-codes related to DPF and lambda sensors.

When replacing the sensor, it is recommended to inspect vacuum/pressure lines and electrical connectors to fully utilize the sensor's capabilities and prevent recurring errors after installation.

Other Ford Lambda Sensors and O2 Sensors

If you are also looking for other lambda sensors and O2 sensors for Ford, check out our dedicated offer: Ford Lambda Sensors and O2 Sensors. This will allow you to easily assemble a complete set of components responsible for exhaust emission control in your vehicle.