Peugeot 4007 Diesel Particulate Filter DPF (2007-2012)

The Diesel Particulate Filter (DPF) on the Peugeot 4007, especially the 2.2 HDi 156 hp model (2007-2013), is an advanced system designed to trap 99.9% of particulate matter from diesel engine exhaust gases. It uses a ceramic filter combined with a special additive that promotes the combustion of soot at around 450°C, reducing harmful emissions and complying with European environmental standards.

The DPF regeneration in the Peugeot 4007 happens in two main ways to burn off accumulated soot and keep the filter clean:

• Natural Regeneration: Occurs during long drives at higher speeds when exhaust gases naturally reach the necessary temperature (~450°C) to burn soot.
• Assisted/Forced Regeneration: Triggered by the engine control unit (ECU) if the temperature is insufficient. It includes measures like pre-injection and post-injection of fuel, air intake heating, and limiting engine speed to initiate combustion of soot.

This process is monitored by sensors that measure pressure before and after the DPF to decide when regeneration is needed, usually every 350 to 800 km depending on driving conditions.

Common signs of issues with the DPF include:

• The DPF warning light illuminating on the dashboard, indicating the need for service.
• Reduced engine power and limited rpm to protect the system.
• Increased fuel consumption and smoky exhaust due to clogged particulate filter.
• Frequent incomplete or failed regenerations, especially if the vehicle is mostly used for short urban trips.

Timely attention to these symptoms is important to avoid costly repairs and ensure vehicle compliance with environmental regulations.

Recommended maintenance intervals for the Peugeot 4007 DPF system are:

• Regular checks every 350 to 800 km for regeneration requirements.
• DPF replacement generally advised between 125,000 and 185,000 km to prevent failures.
• Professional cleaning or forced regeneration as needed when warning lights indicate clogging or pressure issues.

Proper maintenance extends the life of the DPF and ensures optimal engine performance and emissions control.

Yes, clearing the "Check DPF System" warning usually requires completing a regeneration cycle and may involve the following procedures depending on the condition of the DPF:

• Drive at sustained speeds on a highway for 30 minutes or more to complete natural regeneration.
• Use a diagnostic tool to perform forced regeneration if natural regeneration is insufficient.
• Clean the DPF using specialized additives injected via the pressure sensor line, followed by a controlled engine idle to burn off residues.
• If necessary, replace the DPF and refill the additive tank to restore full system functionality.

After the procedure, any engine fault codes should be erased with an OBD scan tool to reset the system and extinguish the warning light.

To maintain the Peugeot 4007 DPF, the following products and tools are commonly used by experts and technicians:

• DPF Cleaners: Additives like Xenum DPF Cleaner injected via the pressure sensor line can help dissolve soot deposits without dismantling.
• OBD Scan Tools: Diagnostic tools such as PP2000 PSA allow scanning, reading fault codes, and performing forced regenerations.
• Original Additives: PSA-approved additives are essential for promoting efficient soot combustion within the filter.

Regular use of correct maintenance products enhances the DPF's lifespan and ensures compliance with European emission norms.

Yes, driving patterns have a significant impact on DPF performance:

• Frequent short urban trips can lead to incomplete regenerations, causing soot buildup.
• Long-distance and high-speed drives facilitate natural regeneration by reaching required exhaust temperatures.
• Engine speed management during the regeneration process (e.g., limited to 2200 rpm in reduced flow mode) is crucial for effective soot combustion.

Optimizing driving habits helps reduce the risk of DPF clogging and extends the filter's service life.

The DPF system is essential in meeting stringent European emission regulations by:

• Removing up to 99.9% of particulate matter from diesel exhaust, significantly reducing harmful soot emissions.
• Enabling the vehicle to comply with Euro 4 and Euro 5 standards applicable to the Peugeot 4007.
• Contributing to cleaner air and reduced environmental impact of diesel vehicles.

Maintaining the DPF in optimal condition is therefore a critical part of responsible car ownership and service.

For precise diagnostics and maintenance, using dedicated scan tools and following manufacturer recommendations is essential.