Peugeot 206 Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) in the Peugeot 206 is an advanced technology designed to trap and eliminate 99.9% of harmful diesel particulates emitted by the engine. Developed by PSA Group and introduced in 2000, it helps reduce pollution and improve air quality by filtering soot and fine particles from the exhaust gas before they are released into the atmosphere.

The DPF system in Peugeot 206 operates in two main cycles:

• Filtration: The DPF traps fine soot particles from exhaust gases, forming a layer inside the filter.
• Regeneration: The trapped particles are periodically burned off at high temperatures to clean the filter and maintain normal pressure levels. This process is transparent to the driver.

The filter’s ceramic structure has microscopic pores that catch particles as small as 0.1 micron, which are harmful to health.

The DPF is positioned in the exhaust line after the catalytic converter and after the turbocharger. Exhaust gases pass through the turbocharger first, then through the DPF, which traps the particulate matter before the gases exit the vehicle.

The Peugeot 206’s DPF uses three regeneration methods to clean the filter:

• Natural Regeneration: Happens during prolonged high-speed driving, when exhaust gas temperature reaches about 450°C, burning off soot naturally.
• Assisted Regeneration: Engine control unit (ECU) raises exhaust temperature through specific engine controls if natural regeneration conditions are not met.
• Forced Regeneration: A manual or diagnostic intervention where the engine runs at high RPM with special settings to burn accumulated soot if other methods fail.

These processes ensure the filter remains effective without driver intervention under normal driving conditions.

The DPF regeneration is supported by:

• An engine control unit managing fuel injection and temperature control.
• A special additive injection system that helps burn particles at lower temperatures.
• An air intake warmer which heats the air to support combustion temperature during regeneration.

This combined management maintains optimal operation and efficient filtering during regeneration cycles.

The Peugeot 206 DPF system uses sensors and pressure monitors to check filter status:

• Pressure sensors before and after the DPF monitor differential pressure to detect blockages.
• Temperature sensors track exhaust gas temperature for proper regeneration.
• When soot build-up is excessive and regeneration fails, a warning light shows on the dashboard indicating DPF overload.

In severe cases, engine RPM may be limited to protect the engine and filter.

Common DPF issues include:

• Clogging: Particle accumulation reduces engine power and efficiency.
• Additive depletion: The special fuel additive essential for regeneration needs regular refilling.
• Sensor or pressure issues: Faulty sensors can impair regeneration management.

Maintenance usually involves:

• Regular driving conditions allowing natural regeneration.
• Refilling the additive tank timely.
• Performing forced regeneration or filter cleaning/replacement when necessary.
• Resetting the system and clearing faults using diagnostic tools.

Yes, the Peugeot 206 DPF system complies with Euro emission standards by effectively reducing pollution and particulates. Krosfou’s DPF products are manufactured in Europe to strict standards, including approval by TÜV SÜD, and meet or exceed original equipment technical requirements.

• Krosfou DPFs use high-grade ceramic monoliths with a thin rare-metal coating for durability and performance.
• The stainless steel INOX 409 construction ensures long-lasting corrosion resistance and strength.
• All products come with a 3-year warranty covering up to 100,000 km under proper use.

Choosing Krosfou ensures quality components that maintain your Peugeot 206’s emissions control and engine performance while abiding by legal standards for pollution control.