Fiat Punto Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) on Fiat Punto diesel models, including Punto II 188, Grande Punto, and Punto Evo 1.3 Multijet 16v, is a device in the exhaust system designed to trap harmful fine soot particles emitted during diesel combustion. It helps meet Euro 5 and higher emissions standards by reducing carcinogenic particulate emissions before gases exit the exhaust.

The DPF performs two main phases:

• Filtration phase: Exhaust gases pass through porous walls in the filter, which capture soot particles, slowly clogging the filter.
• Regeneration phase: When filter clogging reaches about 45-95%, the engine control unit triggers an automatic regeneration cycle that injects diesel post-combustion to heat the exhaust to around 600°C, burning off soot and clearing the filter. This typically requires motorway driving at 2500-4000 rpm for 20-30 minutes with the engine at operating temperature.

A DPF warning light on the dashboard signals when regeneration is needed or if there are interruptions from frequent short urban trips. Ignoring this can cause reduced engine power and forced regeneration at a garage.

The DPF is present on several Fiat Punto diesel variants:

• Punto Evo (2009/10 - 2011/11): 1.3 Multijet 16v engine with a specific replacement filter available.
• Punto II (188): Diesel Multijet engines; recommended filter replacement every 120,000 - 150,000 km.
• Grande Punto (2005+): 1.3 and 1.6 Multijet engines with standard mechanical DPF and dashboard messages like "DPF Cleaning - Keep Engine Running".

Frequent issues related to the DPF include:

• Clogging: Short city trips that interrupt regeneration lead to up to 95% filter obstruction causing power loss, warning lights, engine limp mode, and increased fuel consumption.
• Sensor failures: Malfunctioning differential pressure sensors or clogged fuel injectors can cause error codes and prevent proper DPF operation.
• Early issues: Some Fiat Punto owners report DPF problems as early as 1000-1050 km if the vehicle’s use is not suited to proper regeneration cycles.

DPF cleaning and maintenance methods include:

• Manual regeneration: Drive for 20-30 minutes on the motorway at 3000-4000 rpm to allow passive regeneration and burn soot.
• Forced regeneration: If the warning light remains on, visit a garage for forced regeneration via OBD diagnostics and possibly an engine oil change.
• Chemical cleaning: Using specialized products (e.g., Bardahl 360), combined with sensor disconnection and machine injection to clean the filter, followed by additive dosing and error code resets.
• Replacement: Recommended every 120,000 to 150,000 km with original-quality parts designed specifically for your Punto model.

Estimated garage cleaning costs typically range between €150 and €400 in France.

To avoid frequent DPF clogging and prolong its life, consider the following:

• Avoid short trips under 15 minutes which prevent proper regeneration.
• Include regular motorway drives each week to maintain optimal exhaust temperature.
• Use high-quality diesel fuel and recommended DPF additives.
• Regularly check and maintain sensors, injectors, and engine components.

The DPF warning light indicates issues with soot build-up or regeneration failure. Immediate actions include:

• Drive at sustained speed on a motorway for 20-30 minutes to trigger regeneration.
• If the light stays on, this may lead to engine limp mode or increased fuel consumption.
• Visit a garage promptly for diagnosis and forced regeneration to avoid costly damage.

Ignoring the light risks permanent DPF clogging and engine problems.

Krosfou provides brand-new, high-performance stainless steel DPF replacements for Fiat Punto and other models with a 3-year warranty and guaranteed compliance with European standards. Our DPFs feature advanced honeycomb monoliths treated with thin-layer rare metal coatings for durability and efficiency. Ordering directly from factory ensures the best quality at competitive prices.

All products come with certification from TÜV SÜD Automotive GmbH and comply with manufacturer specifications to ensure reliable performance and emissions control.

For ordering, delivery, warranty, and installation support, contact Krosfou's expert team.