Pro-Line Diesel Intake System Cleaner (400ml) – Liqui Moly LM20208

Pro-Line Diesel Intake System Cleaner (400ml) – Liqui Moly LM20208

SKU: LM20208   ITEM NO: 157215

Price: $19.95

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Pro-Line Diesel Intake System Cleaner (400ml) – Liqui Moly LM20208


Universal Truck Diesel Applications


A mixture of cleaning agents for cleaning and maintaining intake manifold and throttle body of Diesel engines. Dissolves and removes deposits and contaminants thus restoring the normal function of moving parts. Also ideally suited to clean intake valves of modern direct-injection engines. Regular use keeps the intake system in perfect working order and reduces repair costs. Safe with catalytic converters, EGR, and DPF systems.


  • optimizes economical use
  • simple to use
  • cleaning possible without dismantling
  • suitable for diesel particulate filters
  • rapid cleaning
  • good cleaning action


Suitable for use in all diesel engines, with or without turbochargers. Safe for use with catalytic converters and particulate filters (DPF).

To prepare, attach the tube with the nozzle. To gain access, remove the hose or pipe immediately before throttle housing. The engine needs to run to perform cleaning. If unable to start the engine, disconnect the air mass sensor connector while the ignition switch is in the off position. Maintain minimum engine speed of 2000 rpm while spraying cleaner in short intervals of 2-3 seconds, and at the same time move the nozzle back and forth across the opening to completely treat the intake tract. If the engine speed fluctuates more than 1000 rpm stop spraying immediately and wait for the speed to stabilize.

Keep cleaning fluid from contacting air mass meter or painted surfaces. If excess deposits inside EGR valve, intake manifold, or intake valves, a second can of cleaner may be used to improve the result. After completion, leave the engine running at 2000 rpm for a minimum of 20 seconds to allow complete removal of any residing fluid in the intake system. Afterward, erase any stored fault codes with a compatible scan tool.


Do not remove the spray head from the can again after assembly.

Additional information


Manufacturer Part Number



1 Year


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