Skoda Rapid Diesel Particulate Filter DPF (2012-2019)

The Diesel Particulate Filter (DPF) is an essential emission control component fitted on Diesel and some petrol engines in Skoda Rapid models. It captures fine soot particles from the exhaust gases, preventing them from polluting the atmosphere. The DPF regenerates automatically by burning off accumulated soot at high temperatures (around 600°C) through late fuel injections which create an exothermic reaction inside the filter. This process helps keep the filter clean and maintains engine performance.

DPFs are mainly found on Euro 6 versions of Skoda Rapid and Rapid Spaceback, including both Diesel and petrol engines. Common versions include:

• 1.6 TDI Diesel engines (codes CXMA, CAYB, NH1/NH3) producing between 90 and 115 PS
• 1.0 TSI petrol engines with a combined DPF and catalytic converter (2018-2019 models)
• Rapid Spaceback 1.6 TDI Diesel models with noted DPF usage

The DPF specifications and reference numbers vary depending on the engine and model year.

Common symptoms of DPF issues include:

• DPF warning light illuminated on the dashboard
• Reduced engine power and performance
• Increased fuel consumption
• Risk of total DPF blockage leading to engine limp mode
• Emissions exceeding legal limits

Causes often include short trips preventing proper regeneration, faulty pressure sensors (DeltaP), old or contaminated filters, and excessive soot accumulation.

DPF regeneration may be:

• Passive: Occurs naturally during longer drives at higher speeds, typically on highways.
• Active: The engine management performs late fuel injections to increase exhaust temperature and burn soot.
• Forced: A diagnostic tool initiates regeneration by heating the exhaust line when normal regeneration fails.

Cleaning can also be done using chemical additives or ultrasonic processes, but injecting additives carries risks and reprogramming the ECU to disable the DPF is illegal in Euro 6 vehicles.

The typical lifespan of a DPF is around 100,000 to 200,000 kilometres, depending on driving conditions. Frequent short trips might reduce lifespan due to incomplete regeneration.

• Replacement is necessary when the filter is fully blocked and cleaning methods fail.
• On the Skoda Rapid Spaceback 1.6 TDI, replacement parts can cost around £1,148 including labour, with a repair time of 3 to 5 hours.

Krosfou offers brand-new, high-performance DPFs and catalytic converters for Skoda Rapid models, meeting or exceeding OEM specifications with a 3-year warranty. Manufactured in stainless steel (INOX 409) with advanced monolith technologies, these filters are recognized for quality and durability.

• They comply with European standards and are TÜV SÜD certified.
• Available for both Diesel and petrol engines Euro 6 compliant.
• Direct factory delivery ensures competitive pricing and fast shipment.

Professional customers can access additional discounts and support through a PRO account.

The DPF warning light may remain on due to:

• Excessive soot accumulation from incomplete or failed regeneration cycles.
• Faulty pressure sensors (DeltaP) that monitor the filter status.
• Short-distance driving that prevents the engine reaching optimal temperature for regeneration.
• ECU detecting DPF malfunction or blockage, triggering fault codes.

Proper diagnostics with an OBD scan is recommended to check fault codes and sensor data before deciding on cleaning or replacement action.

Maintaining the DPF in good condition requires regular maintenance and appropriate driving habits:

• Longer drives at steady speeds (highway driving) promote passive regeneration and reduce soot buildup.
• Frequent short trips should be minimized, as they prevent proper filter regeneration and increase soot levels.
• Regular oil changes and using the correct fuel help avoid premature filter contamination.
• Monitoring DPF sensor data and addressing warning lights early avoids costly repairs.

Following these recommendations prolongs DPF life and maintains low emissions and engine performance.

For precise diagnostics or repair, always consult a qualified Skoda garage.