Citroen C-Crosser Diesel Particulate Filter DPF (2007-2012)

The Diesel Particulate Filter (DPF) on the Citroen C-Crosser, particularly on diesel engines like the 2.2 HDi from 2007 to 2010 (Euro 4), is an anti-pollution device inserted in the exhaust line after the catalytic converter. Its main purpose is to capture fine particles such as soot and carbon residues from diesel exhaust gases, helping to reduce vehicle emissions and comply with environmental standards.

The DPF operates through two main phases:

• Filtration phase : It traps fine particles produced during diesel combustion.
• Regeneration phase : The DPF is cleaned automatically once the engine exhaust temperature reaches approximately 550°C.

Regeneration can be passive during long motorway drives at high RPM, or active when the engine control unit injects extra fuel to raise temperature for cleaning. This process uses an additive (Eolys/Cérine) to aid combustion of particles inside the filter.

Common issues include:

• DPF warning light illumination, often due to clogging (>45%) or faulty sensors.
• Increased fuel consumption and loss of engine power.
• Potential blockage in the exhaust system, risking turbo or engine damage.

It is important to perform a diagnostic scan to check error codes and should not ignore warning signs. Proper regeneration or replacement may be necessary, and error codes should only be cleared following problem resolution.

Maintenance tips for the DPF include:

• Regular long motorway journeys to enable passive regeneration.
• Professional cleaning procedures to prevent coking and overheating.

When replacement is needed, genuine new DPF units suitable for C-Crosser 2.2 HDi models are available with a warranty and typically delivered within days. The exhaust after-treatment system includes both the DPF and the catalytic converter in different parts.

The DPF in diesel engines like the Citroen C-Crosser uses an additive to aid particle combustion and is specifically designed for diesel emissions. Petrol engines, such as those with PureTech technology, use Gasoline Particulate Filters (GPF) which do not require additives. Both filters aim to trap fine particulate matter but target different fuel types and pollutants.

The DPF significantly reduces fine particulate emissions to meet Euro 4 regulations and beyond, contributing to cleaner air quality. It also preserves the exhaust system's longevity by preventing carbon build-up, thus maintaining vehicle performance and fuel efficiency.

• Reduces soot and harmful particle emissions.
• Limits engine exhaust degradation and potential failures.
• Supports compliance with environmental laws.

Proper DPF functioning is essential for both ecological responsibility and optimal vehicle operation.

High-quality, new DPFs for the Citroen C-Crosser are made with superior stainless steel (INOX 409) and certified technology. They are backed by a 3-year warranty and meet or exceed original manufacturer specifications. These filters ensure durable performance and fitment suitable for your vehicle's requirements.

• Manufactured with advanced honeycomb monolith technology.
• Certified by major European testing authorities.
• Direct-from-factory quality offering excellent price-to-performance ratio.

Always choose genuine, brand-new parts to maintain vehicle warranty and environmental compliance.

Resetting the ECU after a DPF replacement is crucial for proper system operation. This process is distinct from resetting the DPF additive counter, which tracks the additive consumption within the filter. Both resets ensure the vehicle's computer recognises the new component and manages regeneration cycles effectively.

A professional diagnostic tool should be used to perform these resets to avoid triggering warning lights and ensure ongoing DPF functionality.