Alfa Romeo Mito Diesel Particulate Filter DPF (2008-2018)

The Diesel Particulate Filter (DPF) on the Alfa Romeo MiTo, especially the 1.3 JTDM diesel model, is an exhaust component designed to trap fine particulate matter. It uses retention and automatic regeneration controlled by the vehicle's ECU to prevent clogging and ensure compliance with Euro 4 emission standards.

Compatible models primarily include the Alfa Romeo MiTo 1.3 JTDM (955) with 90 hp / 66 kW, manufactured from January to November 2009, engine code 199A3000. The filter corresponds to OE numbers such as 51818964, 55199689, and others. It meets Euro 4 emission standards. Other variants like the MiTo 0.9 petrol may have different DPF requirements.

The vehicle’s ECU detects soot build-up in the DPF and activates a regeneration process to burn off the trapped particles, cleaning the filter automatically.

• Regeneration is triggered based on pressure sensors monitoring the DPF.
• The process helps prevent clogging and maintains engine performance.
• Common issues with regeneration may relate to a faulty EGR valve affecting soot levels and exhaust flow.

Forced regeneration can sometimes be done with diagnostic tools or engine remapping.

Common symptoms indicating a DPF problem include:

• Illuminated DPF warning light on the dashboard.
• Reduced engine power or limp mode.
• Increased fuel consumption or excessive smoke from the exhaust.
• Frequent regenerations or failed regeneration attempts.

Early diagnosis and repair can prevent more costly replacements or engine damage. Always check logs and codes using an OBD diagnostic tool at a garage.

Replacement or maintenance typically involves:

• Following step-by-step guided tutorials or manuals for removal and fitting.
• Allowing about 1 hour for labour on similar models.
• Using a kit including all mounting parts and instructions when available.
• No return of the old DPF is generally required.

New original DPFs come with a 3-year warranty and are made of high-grade stainless steel with certified quality confirming compliance with European standards.

Physically removing or bypassing the DPF is not recommended as it is an essential emissions control device mandated by Euro 4 regulations.

However, electronic suppression through ECU remapping can be done to skip the DPF clogging detection process, but this should be done with caution to avoid legal or technical issues.

• Electronic remap can stop the warning light caused by a faulty DPF.
• Such modifications must be checked for compliance with local laws and garage guidelines.

Always consult a professional garage before proceeding with any removal or remapping to ensure conformity and vehicle safety.

New original DPFs offer several advantages:

• They are fully homologated with E-mark certification and TÜV SÜD approval.
• Manufactured from premium INOX 409 stainless steel for durability.
• Equipped with high-quality monoliths for optimal soot filtration and minimal backpressure.
• Accompanied by a 3-year warranty covering up to 100,000 km.
• Direct factory production ensures reliable quality and consistent performance.

These factors help maintain engine power, reduce emissions, and extend service intervals compared to inferior alternatives.

Detailed documentation, installation manuals, and video tutorials are available for DPF replacement and maintenance on Alfa Romeo MiTo models.

• Step-by-step illustrated guides help with disassembly and fitting.
• Technical support teams can assist with compatibility checks using your vehicle VIN and reference parts.
• PRO customers may access additional resources such as a dedicated app for faster account management and order tracking.

Contact your local garage or technical support service to ensure proper installation and compliance with emission regulations.

Always verify with professionals before replacing or modifying the DPF to avoid further issues or invalidating warranties.