Peugeot 208 Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) on a Peugeot 208 diesel engine is an essential exhaust component designed to trap fine soot particles generated by diesel combustion. It helps the vehicle meet Euro 5 and Euro 6 emission standards by reducing particulate emissions into the atmosphere.

The DPF consists of a porous silicon carbide structure with alternating blocked channels that force exhaust gases through filtered walls to capture soot particles (down to 0.1 micron). The engine control unit monitors DPF saturation through differential pressure sensors, gas temperature, airflow, fuel injection, and mileage. When the filter saturates, the system initiates regeneration by injecting a post-injection of fuel to raise exhaust temperature to around 600°C to burn off soot. A special additive (Eolys) helps lower the combustion temperature for PSA vehicles.

Regeneration modes include:

• Passive regeneration - high-speed driving
• Active regeneration - post-injection heating
• Forced regeneration - via diagnostic tool

The Peugeot 208 integrates the DPF within the HDi system, featuring an intake air preheater via a coolant-heated exchanger to optimize regeneration.

A faulty DPF on a Peugeot 208 may display the following signs:

• Illumination of warning lights such as "Check Engine" or anti-pollution light
• Reduced engine power and limited acceleration with a capped maximum RPM around 2200-3000
• Increased fuel consumption due to frequent regenerations
• Excessive smoke or burnt smell during regeneration process
• Abnormal differential pressure readings (above 160-300 mbar indicates filter clogging)

These symptoms can lead the vehicle into a degraded operating mode until corrective action is taken.

Use a diagnostic tool compatible with Peugeot systems (e.g. Diagbox/PP2000) to check the following parameters:

• Differential pressure across the DPF at ignition off (0-5 mbar normal)
• Differential pressure at idle with warm engine (0-10 mbar normal)
• Pressure readings at increasing engine speeds up to 3000 RPM (20-60 mbar normal for <2L engines; 70-90 mbar for >2L)
• Pressure above 160-300 mbar indicates moderate clogging requiring forced regeneration
• Pressure above 300 mbar indicates critical clogging requiring professional cleaning or replacement

Also check the quantity level of the Eolys additive and inspect for any sensor or pipe damage causing false readings.

Depending on the condition, solutions include:

• Forced regeneration via diagnostic tool: engine idles for 2 minutes then revs to 4000 RPM with post-injection burn for 10-30 minutes to clear soot
• Professional cleaning: ultrasonic or solvent cleaning to remove accumulated soot and ash, especially for heavily clogged filters
• DPF replacement: if clogging is irreversible; ensure OEM or high-quality compatible parts for Peugeot 208 models (1.4 / 1.6 HDi)

Preventive measures include regular highway driving at >2000 RPM for 20-30 minutes to enable passive regeneration and avoid frequent short urban trips which cause early clogging.

When choosing a DPF for your Peugeot 208, consider the following:

• Ensure the part is an original or high-quality premium DPF manufactured to strict European standards, like those made with INOX 409 stainless steel and advanced ceramic monoliths.
• Compatibility with your vehicle model and engine type (check 208 I/II, 1.4 HDi or 1.6 HDi variants)
• The presence of a 3-year warranty covering up to 100,000 km use
• Availability of technical support and installation documentation

Avoid reconditioned or non-certified parts to ensure durability, performance, and compliance with emission regulations.

To maintain your Peugeot 208 DPF and avoid premature failure, follow these guidelines:

• Drive regularly at highway speeds above 2000 RPM for 20-30 minutes to enable passive regeneration
• Avoid excessive short urban trips where the engine does not reach operating temperature
• Use the recommended fuel additive (Eolys) properly to assist soot combustion
• Have regular diagnostic checks of DPF pressure and additive levels at authorized garages
• Replace engine oil and spark plugs on schedule as improper combustion can increase soot

Proper maintenance will help reduce running costs and extend DPF durability.

DPF replacement costs vary between approximately €25 and €1026 depending on the supplier, quality, and Peugeot 208 model. It is recommended to purchase original or certified high-quality DPFs with a warranty for best performance and durability.

• Delivery options include standard shipping with 1 to 6 working days in Europe or express delivery within 24 to 48 hours.
• International shipping times range from 3 to 15 working days with different carriers available.
• Free returns within 30 days for unused products in original packaging are often available from reputable suppliers.

Always check for product specifications, compatibility, warranty terms, and service support before purchase to ensure a smooth checkout and installation experience.