Peugeot 206 Diesel Particulate Filter DPF

The DPF is an essential exhaust system component in diesel Peugeot 206 cars, particularly in HDi engines. It captures and reduces harmful particulate emissions from combustion, helping the vehicle comply with antipollution standards and reduce environmental impact.

The main models with DPF are :

• Peugeot 206 1.6 HDi (motor codes 9HZ or DV6TED4) made between 2004-2007 with 109 hp (80 kW)
• Peugeot 206+ 1.4 HDi (motor code DV4C) from February 2006 onwards

These DPFs are specific to diesel engines introduced post-2004 for Euro 4 emission compliance.

Common issues include:

• Clogging or saturation by soot leading to warning light "Service" or messages such as "risk of filter blockage" or "DPF engine fault"
• Loss of engine power, black smoke emissions, and diagnostic trouble codes (eg. P2002)
• Causes include frequent short city drives preventing proper regeneration, dirty engine oil, or lack of maintenance.

DPF regeneration, which burns off particles at high temperatures (usually on highways), helps maintain filter condition but advanced blockage requires manual cleaning or replacement.

Replacement involves these general steps :

• Prepare by removing the engine cover, raise the car and warm the engine to expand joints
• Access the DPF underneath, remove clamps and bolts securing the DPF (usually 16mm and 19mm keys)
• Disconnect sensors such as lambda and EGR if attached, then remove the DPF carefully
• Fit the new DPF unit, tighten to manufacturer torque specs, reconnect sensors
• Clear fault codes via OBD scanner and drive on highway 20-30 minutes for regeneration

Time estimation: 1-2 hours. Use protective gear to avoid burns during hot engine work.

Yes, moderate clogging can sometimes be treated :

• Using fuel additives designed to reduce soot accumulation
• Professional cleaning using ultrasonic or chemical processes

However, illegal removal or disabling of the DPF is strongly discouraged and against regulations.

Best practices include :

• Regular highway driving over 20 minutes at around 2500 rpm to allow automatic DPF regeneration
• Frequent engine oil changes every 10,000 to 15,000 km with quality oil
• Monitor DPF sensor readings with an OBD diagnostic tool to detect early faults

Following manufacturer maintenance schedules and avoiding mostly short urban trips helps maintain DPF condition.

High-quality new DPFs matching original specifications are available from specialist suppliers. These units are manufactured in stainless steel with advanced ceramic monoliths, certified to equal or superior standards compared to original parts. Warranty coverage of 3 years / 100,000 km is standard.

• Example models include Silicon Carbide (SiC) DPFs for 1.6 HDi and direct fit versions for 206+
• Prices generally range from approximately £300 to £800 plus fitting costs
• Always verify compatibility via your vehicle’s VIN and trusted technical support

Consult professional garages or authorized distributors for best quality and installation advice.

Cleaning a DPF by pressure washing is a delicate process and not generally recommended as a DIY method due to risk of damage to the ceramic filter element.

• If professional cleaning is performed, it is done carefully with controlled pressure to avoid harming the delicate honeycomb structure inside the DPF
• The cleaning direction usually follows the flow of exhaust gases, but only trained technicians should perform this
• Incorrect pressure or direction can cause cracks or breakage, affecting performance and emissions

For maintenance, fuel additives and regular regeneration are preferred preventive methods. If cleaning is essential, consult a specialist service equipped for ultrasonic or chemical cleaning of DPF units.

Always ensure sensors and exhaust components are inspected and properly refitted after any cleaning procedure.