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How to Monitor DPF Blockage on the Alfa Romeo Giulietta

Model: Alfa Romeo Giulietta MK 1 - Years: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
Part: Diesel particulate filter

Video tutorial

Let’s see how to monitor potential blockages of the diesel particulate filter (DPF) on the Alfa Romeo Giulietta: The DPF filter is designed to trap all the pollutants produced by the diesel engine; when the filter becomes blocked, the ECU automatically initiates a regeneration process to clean the filter.

If the vehicle fails to regenerate, the diesel injected into the filter for this cleaning can lead to severe engine combustion issues.

There is a mobile application that can be accessed via an OBD2 reader, allowing you to view the blockage percentage of the filter. If the warning light comes on indicating that the vehicle needs regeneration, Alfa Romeo suggests driving for about 15 minutes at 2,000 RPM in 5th gear on the motorway (around 80 mph) to raise the temperature of the DPF. Therefore, use your OBD2 reader (available at various prices on major e-commerce platforms, starting from £19.00). The application is only for Android phones and is called "ALFADPF". Connect the OBD2 reader, turn on the ignition, and open the app. It shows how blocked the DPF is and many other parameters.

This application is very useful for those who primarily use it in the city.


Updated on 15 August 2026 by ScegliAuto


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by ScegliAuto

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