Subaru Impreza Diesel Particulate Filter DPF

The DPF is fitted on Subaru Impreza diesel models, specifically those with the 2.0 D engine (150 HP / 110 kW). Compatible generations include the GR and GH models produced between 2009 and 2010, as well as the later Impreza 2.0 D AWD models (2011-2016) that comply with EURO 5 standards.

The DPF is a combined catalytic converter and particulate filter system designed to reduce pollutant emissions from diesel Boxer engines. It captures fine soot particles emitted by the engine and removes them by burning at high temperatures during filter regeneration.

Regular preventive cleaning of the DPF is recommended to avoid costly immobilization and restore engine power.

• Cleaning prevents premature clogging of the filter.
• Step-by-step guides and video tutorials are available to help with DPF replacement.
• Some suppliers offer installation kits and free shipping for replacements.

This maintenance keeps the DPF performing safely and effectively.

The DPF light indicates a potential fault with the particulate filter, which can lead to increased emissions and engine performance issues.

• Ignore the warning light at your own risk, as the DPF may be clogged or malfunctioning.
• It is important to promptly diagnose and address the issue to maintain your car's efficiency and comply with environmental standards.

Regular driving at sufficient speed and load helps the filter regenerate and stay clean.

Technically, the DPF can be removed and replaced by a replacement pipe on 2.0 diesel engines fitted in Subaru Impreza and other models like Forester and Legacy.

• However, this modification may have legal and environmental implications and should be considered carefully.
• Removing the DPF is not recommended as it compromises emission control and can cause regulatory non-compliance.

Always check local regulations and consider professional advice before making such changes.

Krosfou offers new, high-performance DPFs and catalytic converters specifically designed for Subaru Impreza diesel models.

These products come with a 3-year warranty and comply with strict European regulations, featuring durable stainless steel construction and advanced monolith technology.

• Manufactured in Europe with TÜV SÜD certification.
• Supported by professional technical assistance and installation guides.
• Available for direct factory delivery with options for express shipping.

Choose genuine original parts for optimal engine power, emission reduction, and long-lasting performance.

DPF regeneration is a process that burns off accumulated soot particles in the filter by raising exhaust temperatures.

• This can happen passively during sustained driving at highway speeds or actively via engine management software forcing a regeneration cycle.
• Regular regeneration is crucial to maintain exhaust flow and avoid blockages.
• Short trips and low speeds can prevent full regeneration, leading to DPF clogging issues.

Driving your Subaru Impreza on longer journeys or at steady speeds periodically helps keep the DPF system in optimal condition.

Several options exist to safely clear or clean your Subaru Impreza DPF when issues arise:

• Performing a forced regeneration using diagnostic tools to raise exhaust temperature and burn off soot.
• Using specialised cleaning services that chemically or physically remove soot safely without damaging the filter.
• Reviewing EGR system operation and engine software to optimise DPF regen cycles and avoid clogging.

Avoid skipping maintenance or attempting to remove the filter altogether, as this can affect engine power and emissions compliance.

Consult with qualified auto professionals to choose the best maintenance method.