Diesel Particulate Filter (DPF) issues can lead to warning lights, reduced engine performance, and vehicles entering limp mode if left unresolved. At Harmac Automotive, we carry out thorough DPF diagnostics using advanced scan tools to identify the root cause of the fault, whether it’s excessive soot build-up, sensor issues, or underlying engine-related concerns. Our focus is not just clearing the fault, but ensuring the problem is correctly diagnosed to prevent it from returning.
We offer professional in-house DPF chemical cleaning using modern equipment designed to effectively remove soot and ash build-up from the filter. This process restores proper exhaust flow and improves system efficiency, while helping to significantly reduce costs by avoiding unnecessary DPF replacements. Our controlled cleaning process ensures a thorough result while maintaining the integrity of the filter.
Our qualified technicians take the time to assess the complete system, ensuring any contributing faults are identified and rectified. By combining accurate diagnostics with professional cleaning and repair, we deliver a reliable, long-term solution — getting your vehicle back to optimal performance and helping prevent future DPF issues.
Using specialised equipment, our technicians can safely clean and restore blocked filters without damaging the internal structure.
Cleaning a blocked DPF can often be a much more cost-effective solution than replacement, while helping extend the life of the system.
Our DPF services include:
Before cleaning begins, we carry out a comprehensive inspection of the filter to ensure it is suitable for cleaning.
This includes checking for:
This process ensures the filter can be safely cleaned and returned to proper working condition.
Performed by a technician using diagnostic equipment when the filter becomes heavily blocked. This process does not address the underlying fault, and repeated forced regeneration can damage the DPF. In most cases, it is not recommended.
Over time, ash and other contaminants can accumulate inside the filter and restrict exhaust flow. Regular inspection and cleaning can help.
Our technicians can diagnose DPF faults and provide the most effective solution to get your diesel vehicle running properly again.