Key Considerations and Compliance Tips When Installing CDPFs on Euro V/VI Diesel Vehicles

Under Euro V and Euro VI standards, diesel vehicles are required to meet much stricter limits for particulate matter (PM) and nitrogen oxides (NOx). The CDPF (Catalyzed Diesel Particulate Filter) plays a critical role in helping vehicles meet these targets. Proper selection and installation are crucial to ensure compliance and performance.

Here are the main points to consider when installing a CDPF on Euro V or Euro VI diesel vehicles:

1. Certification and Regulatory Compliance
The selected CDPF should have valid certifications such as CE, EPA, CARB, or local environmental authority approval. Supporting documentation and traceability codes should be available for inspection or registration.

2. System Compatibility
Make sure the CDPF’s dimensions, connection ports, and backpressure design match the original exhaust system to avoid issues like increased exhaust resistance, engine warning lights, or reduced fuel economy.

3. Regeneration Compatibility
Euro VI vehicles typically use active regeneration systems. The CDPF must support both active and passive regeneration or have customized catalyst coatings tailored to the vehicle’s exhaust temperature range.

4. Material and Longevity
Silicon carbide (SiC) is recommended due to its high thermal durability, especially under high-load or frequent start-stop conditions. A service life of 5+ years or over 150,000 km is ideal.

5. Installation Records and Documentation
After installation, retain serial numbers, supplier certificates, test reports, and installation photos for compliance checks or roadside inspections.

6. Professional Installation and After-Sales Support
Work with experienced installers for calibration and system integration. Confirm warranty periods, maintenance intervals, and replacement policies.