Peugeot RCZ Diesel Particulate Filter DPF (2010-2015)

The Diesel Particulate Filter (DPF) is an anti-pollution device installed in the Peugeot RCZ's exhaust system, positioned after the catalytic converter and before the muffler. It captures up to 99% of soot particles produced by diesel fuel combustion, significantly reducing harmful emissions.

The DPF consists of a ceramic body containing around 50 microchannels per cm² arranged in parallel. Exhaust gases flow through these channels, trapping soot particles inside while allowing gases to pass through. This design effectively filters particulate matter from emissions.

Soot particles accumulate on the DPF walls, which improves filtration but creates backpressure in the exhaust. This backpressure clogs the engine, reducing power and efficiency. In extreme cases, a fully blocked DPF can stop the engine due to air being blocked from exiting.

DPF regeneration clears trapped soot by burning it off. There are three types:

• Passive regeneration: Occurs naturally at full engine load when exhaust heat burns soot automatically.
• Active regeneration: Triggered by the engine control unit during low load driving, activating the EGR valve, post-injection, and turbo control to increase exhaust temperature and burn soot.
• Manual regeneration: Initiated with a diagnostic tool, useful for short trips or frequent urban driving preventing natural regeneration.

Active regeneration typically happens every 500 to 700 km and lasts 5 to 15 minutes.

The Peugeot RCZ fitted with the 2.0 HDI engine (163 hp / 120 kW), produced between 2010 and 2015, uses a specific DPF model designed for this powertrain. It is built to last the vehicle's entire life under normal driving conditions without mechanical shock.

Yes, additives like cerine reduce combustion temperature by 100 degrees to help regenerate the DPF even when engine load is incomplete. The Peugeot RCZ DPF system can also work with AdBlue in additive systems to improve emission control.

• Cerine additive lowers soot burn temperature.
• Compatibility with AdBlue for enhanced emission treatment.

Proper use of these additives aids in maintaining DPF efficiency and extends its service life.

Commercial cleaning solutions like BARDHAL EVO 360 are available for unblocking and cleaning the DPF. Additionally, detailed video tutorials and illustrated manuals can guide you through replacing the filter yourself if required.

• Use specialized cleaning additives for soot removal.
• Follow illustrated DIY guides for filter replacement.

Regular maintenance helps prevent costly DPF faults and warning messages.

The DPF captures carcinogenic soot particles harmful to both environment and human health. While very fine nanoparticles can sometimes escape filtration, the DPF significantly reduces harmful emissions and helps preserve air quality and public health.

Maintaining a properly functioning DPF reduces diesel particulate pollution and contributes to cleaner air standards.