The diesel particulate filter (DPF) is a crucial component in diesel engine vehicles, designed to reduce harmful particulate emissions. Below we explore how it works and how to properly maintain it:
1. Particle filter function:
- The DPF traps and stores soot particles from the exhaust.
- Helps comply with environmental regulations and reduces pollution.
2. Regeneration process:
- Passive regeneration: Occurs automatically while driving under specific conditions.
- Active regeneration: Initiated when the DPF cannot be passively cleaned, temporarily increasing the exhaust temperature.
3. Maintenance of the particulate filter:
- Carry out periodic cleaning of the DPF to ensure its efficiency.
- Use fuel additives that help reduce the accumulation of particles.
4. Symptoms of a clogged DPF:
- Loss of engine power.
- Increased fuel consumption.
- Indicator lights on the instrument panel.

Importance of DPF maintenance:
- Extends engine life: A clean DPF ensures that the engine runs efficiently.
- Emissions reduction: Contributes to environmental protection by reducing emissions of harmful particles.
- Preventing costly breakdowns: A clogged DPF can cause serious damage to the engine and other components.
- nt.
- Savings on repair costs: Avoid major problems by maintaining the proper oil level.
In Santa Eulalia Workshops, we offer cleaning and maintenance services for the particulate filter to ensure its correct functioning. Visit us in Barcelona and Terrassa for more information.