Peugeot 3008 Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) is a ceramic component located in the exhaust line after the catalytic converter. It is designed to trap and burn harmful soot particles—composed of carbon nuclei with hydrocarbons, sulfates, sulfur, and metallic oxides—emitted by diesel engines. In the Peugeot 3008 diesel, a specific additive such as DPR (also called cerine) is injected into the fuel to lower the combustion temperature of soot from about 550-600°C to around 450°C, enhancing the DPF’s efficiency.

A blocked DPF on a Peugeot 3008 may cause several symptoms including :

• Illumination of the "Check Engine" or DPF warning light on the dashboard.
• Loss of engine power due to exhaust gas flow restriction.
• Increased fuel consumption.
• Abnormal differential pressure readings (e.g., 18-31 mbar at idle instead of 6-8 mbar), detectable via OBD diagnostics.
• Engine vibrations or error codes such as P2453 (DPF pressure sensor fault) or P2463 (DPF restriction).
• Severe blockage when soot load reaches around 50 grams, preventing automatic regeneration.

Addressing these symptoms promptly helps avoid further damage and costly repairs.

The DPF cleaning or regeneration in the Peugeot 3008 diesel occurs through three main processes :

• Passive Regeneration : Soot is burned off at high exhaust temperatures during regular driving at higher engine loads (such as highway driving). The DPR additive helps lower the combustion temperature of soot.
• Active Regeneration : When driving conditions do not reach high enough temperatures (e.g., city traffic or idling), the ECU injects extra fuel into the exhaust to increase DPF temperature via the catalytic converter, burning the soot.
• Forced Regeneration : This is performed by diagnostic tools like PSA’s Diagbox in a garage. The vehicle is stationary, engine warmed up, and a specific regeneration command is launched to clean the DPF over 30-40 minutes.

Note: Over time, residual ash accumulates and cannot burn off, requiring professional cleaning or part replacement.

Some maintenance and cleaning can be done DIY or by professionals :

• Chemical cleaning involves disconnecting differential pressure sensors, injecting a cleaning product (such as Cody Mille) into the DPF, letting it act, then running the vehicle with fuel additive and performing a regeneration using Diagbox.
• Manual removal and cleaning has a difficulty of about 2/5 and requires accessing the DPF from below, disconnecting sensors, clamps, and fixings, followed by manual cleaning.
• Beware of issues with the additive system: an empty additive tank or faulty pump will prevent successful regeneration and cause recurrent clogging. The system should be checked and refilled if necessary.
• Professional diagnostic is recommended to read soot load, pressure sensors, and error codes to decide the best action.

Improper handling of sensors or additives can cause sensor damage, so expert assistance is advised for complex repair.

Ignoring DPF warning lights or continuing to drive with a blocked filter can lead to :

• Severe engine performance loss due to exhaust backpressure.
• Higher fuel consumption and increased emissions.
• Increased risk of permanent damage to the DPF, leading to costly replacement.
• Potential damage to other engine components caused by incomplete combustion or sensor faults.
• Failure to pass vehicle emission inspections or MOT tests.

Timely diagnosis and maintenance minimize these risks.

To maintain your DPF and avoid clogging :

• Drive regularly at higher engine speeds (such as motorway trips) to promote passive regeneration.
• Use fuel and additives compatible with PSA standards, such as DPR or Blue D products.
• Regularly check the additive tank level and the additive pump functionality.
• Avoid excessive short trips and idling which prevent effective regeneration.
• Seek professional diagnostic checks if the DPF warning light appears to catch early signs of clogging or faults.

Proper driving style and maintenance extend DPF lifespan and improve diesel engine efficiency.

Krosfou offers brand-new Peugeot 3008 DPFs manufactured with high-grade materials and advanced technology, covered by a 3-year warranty limited to 100,000 km use. Highlights include :

• Produced in Europe, certified by TÜV SÜD, ensuring quality equal or superior to original parts.
• Made from stainless steel INOX 409 with high-performance ceramic monoliths coated with rare metals.
• Not refurbished or reconditioned parts; fully compliant with manufacturer specifications and European regulations.
• Technical support, installation guides, and factory direct supply ensuring excellent reliability and durability.

Choosing certified quality DPFs with warranty gives peace of mind and optimal performance.

For further information and detailed support :

• Consult professional technical documentation and user manuals specific to Peugeot 3008 diesel engines.
• Use diagnostic software such as PSA’s Diagbox for in-depth readings of soot levels, sensor status, and error codes.
• Watch instructional videos for cleaning and removal procedures to understand the complete process.
• Participate in forums and communities sharing advice on DPF maintenance, error codes, and repair tips.
• Contact specialised garages with experience in DPF servicing and additive refilling for complex repairs.

Always ensure to use authentic parts and trusted service providers to maintain your vehicle’s emission system in excellent condition.