Ford S-Max Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) on the Ford S-Max is a crucial exhaust system component designed to capture and remove harmful soot particles produced during diesel combustion. It stores these particles and periodically burns them off in a process called regeneration, leaving only residual ash.

DPF regeneration occurs in two main ways:

• Passive regeneration: Happens automatically during long, high-speed drives when exhaust gas temperatures are sufficient to burn off soot (typically after accumulating 40-50 grams of soot).
• Forced regeneration: Required when soot buildup exceeds 50 grams, indicating a clogged filter. This process uses a diagnostic tool to inject extra fuel and raise temperature to clean the filter.

For optimal regeneration, the engine must be at normal operating temperature, and long highway trips are recommended. Cold engines can block the regeneration process.

Signs indicating possible DPF issues include:

• Illuminated engine or DPF warning lights on the dashboard.
• Reduced engine power due to blocked exhaust flow.
• Higher fuel consumption caused by frequent regenerations and extra fuel injections.
• Failure of regeneration attempts or severe clogging requiring cleaning or repair.

If ignored, a clogged DPF can lead to further engine and exhaust system damage.

To maintain or clean your DPF, consider the following steps:

• Manual regeneration: Let the engine idle a few minutes, then accelerate gently (2000-2500 RPM) and drive at high speed to burn off soot and ash.
• Chemical cleaning: Use diesel additives like Diesel DPF Cleaner (for example, 300 ml for a 2.0 EcoBlue 190 HP Diesel S-Max) poured into the fuel tank followed by a regeneration drive to reduce soot and clean injection components.
• Diagnostic checks: Connect a diagnostic tool to the OBD port to monitor soot levels, force regeneration, or detect error codes such as P2463.
• Professional service: If clogging is severe, visit a Ford dealership or specialized workshop for DPF cleaning or ash removal. Avoid dismantling if exhaust leaks may damage sensors.

Regular long trips and using quality fuel with additives can prevent premature clogging.

Yes, for example, the Ford S-Max 2.0 EcoBlue 190 HP Diesel (mk2, code BCCC) uses a DPF compatible with specific diesel cleaning additives in a 300 ml dose. However, DPF principles of filtering soot and regeneration by high temperature apply broadly across Ford S-Max diesel engines.

• Always use additives and cleaning procedures compatible with your model.
• Consult your vehicle manual or a professional for model-specific recommendations.

Yes, during regeneration, exhaust gases reach very high temperatures which can pose safety risks:

• Do not park the vehicle on dry grass, leaves, or flammable surfaces during regeneration as this could cause a fire.
• Avoid running out of fuel as low fuel can interrupt regeneration and cause filter clogging.

These precautions help ensure safe and efficient operation of the DPF system.

For diagnosing DPF problems, it is advised to:

• Use an OBD diagnostic tool to check soot levels, force regeneration sequences, and detect error codes such as P2463.
• Consult professional workshops equipped to interpret diagnostic results and perform forced regeneration or repairs safely.
• Regularly monitor warning lights and engine behavior for early detection of filter issues.

Early diagnosis helps prevent further damage and costly repairs.

For genuine, high-performance Diesel Particulate Filters for your Ford S-Max, it is best to choose products that:

• Are brand new and manufactured in compliance with manufacturer specifications and European regulations.
• Feature high-quality stainless steel construction (such as INOX 409) and advanced monolith coatings for durability and performance.
• Have certifications by recognized automotive authorities ensuring equal or superior quality to original parts.
• Include a warranty of typically 3 years or up to 100,000 km under normal use conditions.

Always source parts from reputable suppliers who guarantee product performance and offer professional technical support.

Contact the supplier directly or a Ford authorized service center for model-specific parts and advice.