MANNOL 9873 Engine Intake Cleaner for Carbon Deposit and Engine Intake - 400ml

A highly effective intake system cleaner designed for gasoline engines. Cleans the intake tract up to the valves—even hard-to-reach areas—without disassembly. In most cases, a single treatment restores the intake system to optimal condition.

• Deep cleaning action removes dirt, soot, carbon, resin, oil deposits & old stubborn buildup
• Restores idle stability and smooth engine operation
• Improves cold start, acceleration response & reduces fuel consumption
• Protects against corrosion & oxidation, preventing new deposits and reducing repair costs
• Safe for catalytic converters, oxygen sensors, and turbochargers
• Helps address symptoms of a clogged idle valve, such as:
  • Hard starting
  • Rough or fluctuating idle
  • Slow RPM drop when pressing the clutch
  • Black exhaust smoke

Application Method

• Shake the can well before use
• Spray after the air flow meter (avoid spraying directly on the sensor)
• Apply for at least 30 seconds while engine runs at idle (min. 2000 rpm)
• For heavy deposits on throttle body, manifold, or valves, repeat application
• After use, let the engine run for 20 seconds at 2000 rpm to burn off residues