Liqui Moly Pro-Line Intake System Cleaner Diesel 400ml

This Liqui Moly Pro-Line Intake System Cleaner Diesel is a powerful solvent with a highly effective additive combination designed to tackle contamination and deposits within the diesel intake and throttle valve areas. It effectively loosens and removes residues such as oil, resin, and soot, ensuring smooth operation of all moving parts and enhancing the reliability of diesel engines.

To use, access the intake system, ideally downstream of the air flow meter, turbocharger, or charge air cooler, and position the cleaner directly in front of the intake manifold. Start the engine to begin the cleaning process. If the engine struggles to maintain speed or fails to start with the intake pipe removed, disconnect the air flow meter plug with the ignition off. After cleaning, any stored fault codes should be cleared from the engine control unit using a diagnostic device, and the air flow meter recalibrated if necessary.

Avoid contact with the air flow meter and painted components. If engine speed increases by more than 1,000 RPM during application, cease spraying immediately to prevent potential damage.