Citroen C3 Picasso Diesel Particulate Filter DPF (2009-2017)

The Diesel Particulate Filter (DPF) in the Citroën C3 Picasso reduces harmful emissions by capturing soot particles from the exhaust gases. It is placed after the catalytic converter in the exhaust system and traps carbon-based particles to help meet Euro 5 emission standards.

The DPF regeneration removes accumulated soot through two modes:

• Passive Regeneration: Occurs naturally when exhaust gases reach 550 to 600°C during high-speed driving.
• Active Regeneration: Triggered by the engine management system when temperature is insufficient, injecting fuel into the exhaust to raise temperature and burn off soot.

Citroën’s diesel engines use a fuel additive to lower combustion temperature of particles to about 450°C, facilitating efficient regeneration.

To clean the DPF without dismantling, drive the vehicle continuously at 60 to 80 km/h for 25 to 30 minutes. This helps the filter reach the necessary temperature to burn off accumulated ash and soot.

• Alternatively, a professional diagnostic tool such as VCDS can be used for thorough cleaning.
• The filter can hold up to 60 g of ash before requiring cleaning or replacement.

This maintenance is especially important for vehicles mainly driven on short urban trips.

Common symptoms of a defective DPF include:

• Increased fuel consumption
• Loss of engine power
• Illumination of the 'Check Engine' warning light
• Service warning accompanied by a clogging risk message

Addressing these signs promptly helps prevent further engine or emission system damage.

The DPF in the Citroën C3 Picasso is commonly made from cordierite or silicon carbide (SiC), with SiC offering greater durability. All filters comply with European CE/CEE standards and meet Euro 5 emission requirements.

• Constructed with high-quality ceramics and stainless steel for reliability.
• Certified for performance and environmental conformity.

This ensures both long-term efficiency and adherence to legal emission limits.

The recommended replacement interval for the DPF in the Citroën C3 Picasso 1.6 HDI is:

• First replacement at 160,000 km
• Subsequent replacements every 20,000 km

Following this schedule helps maintain optimal engine performance and emission control.

Labour time and replacement costs vary by engine version:

• 1.6 BlueHDi 100: approx. 48 minutes, total cost between €475 and €1,068
• 1.6 HDi 109 cv and 1.6 116 cv: approx. 2 hours 12 minutes, cost varies
• 1.6 Flex 113-122 cv: approx. 55 minutes, cost varies

Note: Petrol versions such as 1.2 THP 110cv and 1.4 VTi 95cv do not have a DPF and thus do not incur these replacement costs.

To ensure the longevity and proper functioning of the Citroën C3 Picasso's DPF, it is recommended to:

• Prefer long-distance driving to allow passive regeneration at high exhaust temperatures.
• Avoid using biodiesel or vegetable oils such as colza oil, as these can damage the filter.
• Have installation and removal performed by qualified personnel to avoid damage.
• Ensure your vehicle is equipped with OBD (On-Board Diagnostics) for proper system monitoring.

Following these guidelines helps prevent clogging and maintains engine efficiency.

For professional assistance, the Krosfou DPF range offers new parts with a 3-year warranty and proven reliability.