Exhaust Filter Full-DPF Cleaning

car with open hood

When a diesel particulate filter (DPF) becomes full or clogged with excessive soot and ash, it may require a thorough cleaning to restore its optimal functionality.

Here’s a general guide to exhaust filter full-DPF cleaning:

Confirm DPF condition

Before cleaning, ensure that the DPF is full or clogged. This can be determined through diagnostic tools or by observing warning lights on the dashboard indicating DPF issues.

Check manufacturer guidelines

Consult your vehicle’s owner manual or contact the manufacturer to understand their recommended cleaning methods for your specific DPF system. Different vehicles may have varying requirements and procedures.

Identify cleaning method

There are several methods available for full DPF cleaning:

Passive regeneration

In some cases, driving at highway speeds for an extended period can initiate a passive regeneration process where the exhaust temperature is elevated, allowing the DPF to self-clean. This method is effective for partially clogged filters but may not be sufficient for heavily clogged ones.

Active regeneration

Active regeneration may be necessary if the passive regeneration process doesn’t clear the DPF adequately. This involves using diagnostic tools or a manufacturer-provided switch to initiate a forced regeneration process. It increases exhaust temperatures to burn off accumulated soot. Follow the specific instructions provided by the manufacturer for initiating and completing an active regeneration.

a mechanic checking on a car

Thermal cleaning

If passive or active regeneration methods don’t resolve the issue, thermal cleaning is another option. This involves removing the DPF from the vehicle and subjecting it to high temperatures in a specialized cleaning machine. The process burns off the soot and ash, effectively cleaning the filter. Thermal cleaning is typically performed by professional cleaning services or specialized workshops.

Chemical cleaning

Chemical cleaning solutions can also be used to dissolve and remove the accumulated soot and ash from the DPF. This method typically involves soaking the filter in a cleaning solution or using a specialized cleaning kit. Again, following the manufacturer’s guidelines and using approved cleaning solutions is essential.

Professional assistance

Thermal cleaning and chemical cleaning methods are often best performed by professional cleaning services or specialized workshops. They have the necessary equipment, expertise, and experience to clean DPFs effectively. If you’re not confident in performing these tasks yourself, seek professional assistance to avoid causing further damage.

Preventative measures

Once the DPF is cleaned, it’s important to implement preventative measures to avoid future issues. Follow proper maintenance practices, drive at highway speeds periodically to encourage passive regeneration, use high-quality fuel, and adhere to the manufacturer’s recommendations for DPF maintenance and cleaning intervals.

Always prioritize safety and consult professionals or experienced technicians when in doubt or if you encounter persistent DPF issues.

Go to 30 Minute DPF Clean for the best DPF filter cleaning service

30 Minute DPF Clean is conveniently located in New Jersey, just 20 minutes South of Philadelphia.

Give one of our DPF cleaners a call now for more information!