Subaru Trezia Diesel Particulate Filter DPF (2010-2016)

The Subaru Trezia Diesel Particulate Filter (DPF) is an emission control device integrated into the exhaust system of Subaru Trezia models equipped with the 1.4 D (1ND-TV) diesel engine producing 90 hp (66 kW). It traps soot particles from diesel exhaust gases to reduce pollution and complies with Euro 4 and Euro 5 emission standards for models produced between 2011 and 2015.

DPFs for the Subaru Trezia typically contain a monolith honeycomb structure made from either cordierite, a porous ceramic material effective at trapping soot, or silicon carbide (carbide of silicon), which offers higher resistance to high temperatures. These monoliths are housed inside stainless steel (INOX 409) casings for durability and performance.

The DPF traps soot particles from the diesel exhaust to prevent them from being released into the atmosphere. It regenerates by burning off the accumulated soot through high-temperature combustion, which can be a passive regeneration (automatic during normal driving) or active regeneration triggered by controlled fuel injection. This process helps maintain engine efficiency and reduces emissions.

• Traps soot particles via ceramic monolith.
• Regenerates soot through combustion at high temperature.
• Monitored and controlled by the vehicle’s OBD system.

Proper functioning depends on regular driving that allows the engine to reach operating temperatures to enable passive regeneration.

Common problems include clogging due to soot accumulation if the vehicle is mainly used for short urban trips where the engine doesn’t reach optimal temperature frequently enough for regeneration. This may cause increased backpressure, loss of performance, and warn engine lights.

• DPF clogging from incomplete regeneration.
• Increased fuel consumption or engine misfire symptoms.
• Warning lights or fault codes from On-Board Diagnostics (OBD).

Regular maintenance and the use of specialized DPF cleaning products can help prevent clogging.

Yes, the DPF can be cleaned without removing it from the vehicle by using DPF cleaning products such as aerosol sprays or liquid cleaners designed to reduce cinder and soot buildup. These cleaners support both passive and active regeneration processes and help extend the filter’s lifespan.

• Available in aerosol sprays (400-450 ml) and liquid versions (5L).
• Decarbonizes filter to restore airflow efficiency.
• Supports extended DPF durability when used regularly.

For severely clogged filters, professional cleaning or replacement may be necessary.

When selecting a replacement DPF for your Subaru Trezia diesel vehicle, consider the following:

• Ensure compatibility with the 1.4 D (1ND-TV) engine and Euro emission standard (Euro 4 / Euro 5).
• Choose the correct filter length and weight according to original equipment specifications (300mm to 1050mm lengths available).
• Prefer new, high-quality DPFs made with stainless steel casings and certified monoliths to guarantee durability and performance.
• Avoid filters unsuitable for biodiesel or alternative fuels not recommended by the manufacturer.
• Verify the product reference and engine code for accurate fitment.

Professional installation and diagnostics are recommended to ensure the DPF system works correctly with vehicle sensors and OBD monitoring.

Krosfou offers brand-new, high-performance Subaru Trezia DPFs manufactured in Europe using premium materials like INOX 409 stainless steel and advanced ceramic monoliths treated for superior performance and durability. These products come with a 3-year warranty and comply with European emission regulations.

• Manufactured in Poland with strict quality control.
• Certified by leading automotive certification bodies.
• Manufactured according to OEM standards, not refurbished.
• Backed by technical support and professional advice.

Ordering direct from the factory ensures the best quality-to-price ratio and reliable delivery options within Europe and internationally.

Subaru Trezia DPFs from trusted manufacturers like Krosfou are available online with direct-from-factory shipping. Delivery options include quick standard delivery within Europe (1 to 6 working days) and express shipping (24 to 48 hours) with reliable carriers such as DHL and UPS.

• Free returns within 30 days if the product is unused and in original packaging.
• 3-year warranty limited to use not exceeding 100,000 kilometers.
• Order processing same working day if placed before noon and in-stock.
• Secure payment methods including credit card, bank transfer, and digital wallets.

For detailed compatibility, measurements, and fitting instructions, customers are advised to provide VIN or reference codes when ordering.

Note: Always ensure the DPF is suitable for your specific Subaru Trezia model and engine specification to maintain vehicle compliance and performance.