Citroen C2 Diesel Particulate Filter DPF (2003-2009)

The Diesel Particulate Filter (DPF) on the Citroën C2 is an anti-pollution device installed in the exhaust system after the catalytic converter and before the silencer. It captures up to 99% of harmful fine soot particles produced by diesel combustion, helping reduce cancer-causing and polluting emissions.

The DPF consists of a ceramic body with thousands of microscopic channels that trap soot particles on the walls. Exhaust gases flow through these channels while the soot accumulates, which improves filtration but increases back pressure, potentially causing engine clogging and power loss.

DPF regeneration is crucial to burn off soot deposits and maintain performance. There are three types of regeneration:

• Passive regeneration : Happens automatically when driving at high engine load and temperature (above 500-600°C), burning soot into CO2, water vapor, and ash every 500-700 km for 5-15 minutes.
• Active regeneration : Triggered by the engine control unit via sensors detecting excessive back pressure. It uses strategies like exhaust gas recirculation (EGR), post-fuel injection, and turbo adjustments to raise exhaust gas temperature and burn soot.
• Manual regeneration : Performed with a diagnostic tool to force a cleaning cycle, ideal for urban or short trips where natural regeneration is rare.

Ash from burnt soot is not combustible and accumulates over time, requiring periodic DPF replacement.

Citroën C2 diesel models (such as the 1.6 HDi 70/68 hp) have DPFs that can become blocked especially with frequent urban driving and short trips that prevent proper regeneration. Common issues include:

• Illuminated DPF warning light indicating clogging due to high back pressure.
• Loss of engine power and increased engine wear from soot build-up.
• Incomplete regeneration cycles, leading to faster DPF saturation.

Regular longer drives at highway speeds help maintain natural regeneration and prevent these problems.

Yes, replacement of the DPF on a Citroën C2 is possible with proper guidance. Detailed illustrated tutorials and step-by-step videos are available online to assist with the process. They cover disassembly, installation, and safety precautions.

When purchasing a replacement DPF, ensure that it matches the exact reference for the Citroën C2 1.6 model to maintain compatibility and performance.

Special additives like cerine are used to lower soot combustion temperature by about 100°C, which helps the DPF regenerate at lower engine load and temperature, making regeneration easier and faster.

Some DPFs in diesel vehicles may also use AdBlue to reduce nitrogen oxide (NOx) emissions as part of the selective catalytic reduction (SCR) process, enhancing environmental compliance.

Krosfou DPFs come with a 3-year warranty covering up to 100,000 kilometres, ensuring high reliability and compliance with European regulations.

Manufactured from stainless steel INOX 409 and high-quality ceramics with advanced coating technology, Krosfou DPFs meet or exceed original equipment standards and are TÜV Sud certified for quality and performance.

• New, not reconditioned parts
• Direct from factory quality at competitive pricing
• Manufactured using 2025-grade technology

This ensures durability, optimal engine performance, and pollution reduction for your Citroën C2.

Proper maintenance of the DPF involves:

• Driving regularly at sufficient speed and load to allow passive regeneration.
• Using additives designed for DPFs to facilitate soot combustion.
• Performing manual regeneration with diagnostic tools if recommended.
• Monitoring engine and DPF warning lights and responding promptly.
• Ensuring regular servicing to check EGR valve and sensors related to DPF function.

These measures help reduce risk of clogging and maintain engine performance and emission standards compliance.

You can order quality, original Krosfou DPFs specifically designed for the Citroën C2 1.6 diesel from authorized dealers and online platforms offering direct-from-factory parts with warranty.

• 3-year warranty included
• Fast shipping options available in the UK and Europe
• Technical support and installation guides
• Professional services such as DPF cleaning and diagnostic help for warning light issues

Always ensure you provide the exact vehicle model and engine reference to receive compatible parts and support. Prompt and accurate help reduces downtime and protects vehicle performance.

For optimal results, seek professional diagnostic if the DPF warning light appears or if running issues are detected.