Citroen Xsara Picasso Diesel Particulate Filter DPF (1999-2012)

The Diesel Particulate Filter (DPF), also known as FAP, is a post-treatment device fitted after the catalytic converter in the exhaust system of the Citroën Xsara Picasso diesel models. It is ceramic-based and traps soot particles from exhaust gases to reduce pollution, using two distinct regeneration modes to burn off accumulated particles.

DPF regeneration occurs in two main ways:

• Passive regeneration: Happens naturally during high-load driving on roads or motorways, when exhaust temperatures reach 550 to 600°C, burning off soot automatically.
• Active regeneration: Uses a special additive injected to lower combustion temperature to around 450°C. The vehicle’s engine management unit controls additive injection, turbo, and injection timing to facilitate cleaning, followed by a brief forced regeneration period where engine speed rises to 4000 rpm.

The engine control unit (ECU) manages the process by:

• Prohibiting exhaust gas recirculation during regeneration
• Controlling the turbocharger to maintain engine torque
• Performing a third injection after the main injection to increase exhaust temperature
• Directing intake air through a warming circuit by adjusting throttle positions

This process helps ensure effective burning of trapped soot in the DPF.

The DPF can typically last over 80,000 kilometers under normal driving conditions before becoming saturated. While soot particles are burned off via regeneration, the residual ash accumulates gradually and may require cleaning or replacement eventually.

Common symptoms of DPF issues include:

• Increased fuel consumption
• Reduced engine power
• Higher harmful emissions
• Dashboard warning light “Service” with a clogging alert message
• If regeneration attempts fail, the DPF overload icon may illuminate

Regular checks and timely regeneration are recommended to avoid serious clogging.

Chemical cleaning can extend the filter’s life. Specialized DPF cleaners or sprays are administered via the differential pressure sensor to dissolve soot deposits, lowering pressure and restoring performance. After cleaning, an electronic reset and adaptation of the DPF system is necessary.

If cleaning is insufficient, replacement with a high-quality stainless steel DPF designed for the 1.6 HDi Xsara Picasso may be required.

• Engine: 1.6 HDi
• Power: 109 hp / 80 kW
• Manufacture years: 2004/08 - 2010/08
• Filter material: Ceramic
• Regeneration temperature: 450°C with PSA additive
• Expected lifespan: Over 80,000 km

This filter is designed to meet strict European pollution standards with durable materials and performance technology.

High-performance, approved DPFs and catalytic converters made in stainless steel with premium ceramic monoliths are available directly from manufacturers like Krosfou. These products come with a 3-year warranty and meet or exceed original manufacturer specifications and European regulations for pollution control.

Ordering direct from factory ensures access to durable, market-leading DPFs with reliable shipping and customer support.