LIQUI MOLY Pro-Line Diesel Particulate Filter Purge 500ml

LIQUI MOLY Pro-Line Diesel Particulate Filter Purge is a professional flushing fluid developed for cleaning diesel particulate filters (DPF/FAP) while they remain installed in the vehicle. This specialised product is designed to flush loosened soot and neutralise the preceding cleaning fluid during the professional DPF cleaning procedure.

What Is LIQUI MOLY Pro-Line Diesel Particulate Filter Purge?

LIQUI MOLY Pro-Line Diesel Particulate Filter Purge is the second stage of LIQUI MOLY’s two-step DPF cleaning process. After the particulate filter has been treated with Pro-Line Diesel Particulate Filter Cleaner, the Purge fluid is used to flush loosened soot and distribute remaining contaminants inside the filter.

The flushing process prepares the loosened deposits for removal during the subsequent regeneration process. This product is intended for professional workshop use and is not a standalone DPF cleaner or diesel fuel additive.

How Does DPF Purge Work?

During the first cleaning stage, LIQUI MOLY Pro-Line Diesel Particulate Filter Cleaner loosens soot deposits inside the particulate filter. The Purge fluid is then applied to flush the softened contaminants and neutralise the cleaning fluid.

The treatment helps distribute the loosened soot throughout the filter so that it can be burned off during regeneration.

After the Purge application, a suitable diagnostic scan tool is required to initiate the regeneration according to the vehicle manufacturer’s specifications.

Key Features and Benefits

• Designed for professional DPF cleaning.
• Flushes soot loosened by DPF Cleaner.
• Helps distribute contaminants inside the particulate filter.
• Neutralises the preceding cleaning fluid.
• Supports the subsequent DPF regeneration process.
• Helps restore optimum engine performance.
• Supports normal fuel consumption.
• Helps maintain DPF efficiency.
• Suitable for installed passenger-car DPF/FAP systems.
• Used as the second stage of LIQUI MOLY Pro-Line DPF cleaning.

Suitable Applications

LIQUI MOLY Pro-Line Diesel Particulate Filter Purge is designed for passenger-car diesel engines equipped with diesel particulate filters (DPF/FAP).

It is particularly relevant for vehicles experiencing DPF blockage associated with soot accumulation, including vehicles frequently used for short-distance driving and city traffic.

The product must be used together with LIQUI MOLY Pro-Line Diesel Particulate Filter Cleaner as part of the specified professional cleaning procedure.

Product Specifications

Application and Usage Instructions

LIQUI MOLY Pro-Line Diesel Particulate Filter Purge requires professional DPF cleaning equipment and should be applied by a trained technician.

The general two-stage cleaning procedure is:

1. Ensure the DPF temperature is below 40°C before beginning the cleaning procedure.
2. Access the particulate filter through the appropriate temperature or pressure sensor opening.
3. Apply LIQUI MOLY Pro-Line Diesel Particulate Filter Cleaner according to the official instructions.
4. Allow the cleaner to work for approximately 10–15 minutes.
5. Apply the complete 500ml Pro-Line Diesel Particulate Filter Purge using the specified spray equipment.
6. Reinstall the removed sensor and complete the procedure.
7. Initiate the required DPF regeneration using suitable diagnostic equipment and follow the vehicle manufacturer’s specifications.

The specified application equipment includes the DPF Pressurized Tank Spray Gun (part number 7946) and DPF-Probe with five interchangeable tips (part number 7945). A long spray probe (part number 20630) may be required for certain applications.

Important: The DPF must be cool before treatment. Special care is required to prevent cleaning or flushing fluid from entering the combustion chamber. Always follow the official product instructions and safety precautions.

Why Is the Purge Stage Important?

The first-stage DPF Cleaner loosens soot and contaminants inside the filter. The Purge stage then flushes the loosened material and prepares it for removal through regeneration.

Using the correct second-stage fluid is important because the DPF cleaning procedure is designed around both products working together. The final regeneration is also essential to complete the cleaning process.

Why Choose LIQUI MOLY Pro-Line Diesel Particulate Filter Purge?

LIQUI MOLY Pro-Line Diesel Particulate Filter Purge is specifically formulated for the flushing stage of professional DPF cleaning. It works with the corresponding Pro-Line DPF Cleaner to help remove loosened soot from an installed particulate filter.

The 500ml container provides the flushing fluid required for the manufacturer’s specified cleaning procedure. It is intended for professional workshops equipped with the correct application tools and diagnostic equipment.

Important Usage Information

• For professional workshop use only.
• Not a standalone DPF cleaner.
• Always use with Pro-Line Diesel Particulate Filter Cleaner.
• Do not pour into the diesel fuel tank.
• Do not add to engine oil or coolant.
• Use the specified DPF spray gun and probe.
• Ensure the DPF temperature is below 40°C before application.
• Complete the procedure with the required diagnostic-tool-activated regeneration.
• Follow the original product label and official safety instructions.

LIQUI MOLY Pro-Line Diesel Particulate Filter Purge 500ml is a professional DPF flushing fluid designed to remove loosened soot after the cleaning stage and prepare the filter for regeneration.