Peugeot 207 Diesel Particulate Filter DPF

The DPF on Peugeot 207 Diesel, especially the 1.6 HDi engine, is a ceramic component positioned after the catalytic converter in the exhaust line. It captures ultra-fine diesel particulates down to 0.1 micron, trapping soot in its porous honeycomb structure to meet stringent emission regulations.

The engine control unit monitors pressure difference, exhaust flow, driving type, and distance since last regeneration (typically 350–800 miles). When soot load is high, a forced regeneration initiates by injecting extra fuel to heat exhaust gases above 570°C, oxidising soot into CO2. This process may include temporarily disabling EGR, activating cooling fans, and adjusting air intake for optimal temperature.

Progressive clogging occurs when soot and DPF additive accumulate due to frequent short or urban trips that prevent natural regeneration. This leads to high differential pressure, limited engine speed (max 2200 rpm), and reduced air flow mode.

• Symptoms include power loss, increased fuel consumption (10-15%), strong exhaust smell, engine noise, DPF warning light illumination, and failed emission tests.
• Specific causes for Peugeot 207 include empty additive reservoir and inappropriate driving conditions.

Catching these signs early prevents costly repairs and ensures the vehicle passes emissions regulations.

Forced regeneration can be triggered via diagnostic tools such as PP2000 or Diagbox. The engine idles for a couple of minutes before revving to 4000 rpm with post-injection to burn off soot and reset faults.

• Cleaning options include hydrogen cleaning at home, which restores power and reduces fuel consumption by 10-15%.
• Chemical additives can also help but professional cleaning is recommended for best results.
• DPF replacement may be necessary if cleaning is ineffective, along with replacing the additive reservoir.

Regular servicing and monitoring help maintain DPF performance.

DPF replacement is recommended when cleaning and forced regen fail to resolve clogging symptoms or if the additive pouch is empty, causing pollution test failure.

• Replacement filters for Peugeot 207 Diesel models are available at competitive prices (e.g. around £276 for a new DPF).
• Replacing the additive pouch alongside the filter ensures compliance and prevents future clogging issues.

Timely replacement assists in meeting emission regulations and maintaining vehicle performance.

Preventive measures focus on proper driving and maintenance habits to ensure optimal DPF function.

• Regularly drive at motorway speeds (>20 minutes at higher revs) to allow natural regeneration.
• Avoid frequent short trips or city driving that prevent the DPF from reaching regeneration temperature.
• Perform routine check-ups and diagnostic scans to monitor DPF health and additive levels.

Following these tips helps avoid costly repairs and preserves engine efficiency.

The DPF warning light indicates issues with the particulate filter, often related to clogging or sensor faults.

• If the warning light is orange, it is typically a caution signal but could still cause a MOT failure if emissions exceed legal limits.
• A red warning light usually signifies a serious fault and will likely lead to MOT failure.
• A mechanic should diagnose whether the issue is a sensor malfunction or actual clogging problem.

Addressing the warning promptly ensures compliance with regulations and prevents engine damage.

Diagnostic tools like PP2000 and Diagbox provide detailed analysis of the DPF status by reading sensor data and clearing fault codes.

• They enable forced regeneration processes to burn off accumulated soot efficiently.
• Allow monitoring of additive pouch load and pressure differential across the DPF.
• Help reset warning lights and confirm successful regeneration or signal when replacement is required.

Using professional diagnostic assistance is key to optimal DPF service and avoiding costly issues.

For expert advice and quality parts, contacting a reputable supplier dedicated to Peugeot 207 DPF solutions ensures genuine, high-performance components backed by reliable warranties.