Liqui Moly Pro-Line Intake System Cleaner Diesel

Liqui Moly Pro-Line Intake System Cleaner Diesel is a high-performance cleaning solution engineered to restore and maintain the efficiency of diesel engine intake systems. Built with precision German technology, this cleaner is specially formulated to dissolve carbon deposits, oil residues, and other stubborn contaminants that accumulate within the intake manifold, valves, EGR system, and turbocharger.

Over time, diesel engines—especially those equipped with Exhaust Gas Recirculation (EGR)—can suffer from reduced air intake due to soot and dirt build-up. This not only compromises fuel efficiency but also diminishes engine power, causes rough idling, and increases emissions. Liqui Moly’s intake cleaner helps combat these issues by penetrating deep into the intake system and cleaning it thoroughly without the need for disassembly.

The product is sprayed directly into the intake tract using the included application hose. As the cleaner is drawn in by engine vacuum, it actively breaks down deposits and evaporates residue, leaving components clean and restored. The cleaning process takes just a few minutes, making it a quick and effective part of regular engine maintenance.

Suitable for all diesel engines with and without turbochargers, it is especially useful for modern diesel vehicles with DPF systems that are sensitive to airflow restrictions. It helps ensure that your engine breathes clean air, which translates to better combustion, improved throttle response, reduced smoke, and smoother operation.

Liqui Moly Pro-Line Intake System Cleaner Diesel is trusted by professional mechanics and car enthusiasts alike. Whether you’re driving a diesel sedan, SUV, van, or commercial vehicle, this cleaner provides the care your engine needs to stay responsive and fuel-efficient for longer.

Restore your engine’s performance and breathe new life into your diesel vehicle with Liqui Moly’s powerful and professional-grade intake system cleaner.