The MultiAir system , developed by Fiat, represents one of the most innovative technological solutions for the control of variable valve lift. However, precisely because of its sophistication, it can be subject to malfunctions caused by dirty oil , sludge or micro-blockages in the hydraulic channels.
One of the most effective solutions to prevent and solve light problems is the use of specific additives for cleaning the MultiAir module . In this article we present the best products on the market and explain how and when to use them.
💡 Why use an additive for the MultiAir module?
The MultiAir module works with an electro-hydraulic system powered by the engine oil. If the oil is contaminated or degraded, it can compromise the correct functioning of the solenoid valves, leading to:
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Misfires
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Fault codes like P1067, P0300, P0302, etc.
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Power Losses
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Intake system malfunction
Using a cleaning additive allows you to:
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Remove sludge and deposits
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Improve oil flow
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Restore valve functionality
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Avoid mechanical intervention if the problem is only related to dirt
📊 The best additives for cleaning the MultiAir module
1. Bardahl B2 Engine Treatment
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Reduces friction and helps keep the oil circuit clean
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Improves engine compression and sealing
2. Tunap 957 Engine Cleaning Oil Additive
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Specific for cleaning hydraulic components and oil circuits
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Used in professional fields, also effective on MultiAir engines
3. Liqui Moly Hydraulic Lifter Additive
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Specific for hydraulic systems such as MultiAir
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Removes sludge and improves the functioning of solenoid valves
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It is poured directly into the hot engine oil
4. Arexons Oil Circuit Cleaning Treatment
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Helps dissolve deposits and sludge in the lubrication circuit
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Easily available in auto centers and spare parts stores
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To be used before oil change
5. MOTUL Engine Flush
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Safely removes residues and impurities from the engine
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Helps clear oil lines and valves
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It is used before the oil change, with a hot engine.
✅ How and when to use these additives
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Warm engine : Most additives should be used with the engine warm, to improve their action.
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Before changing the oil : Many products should be left to act for 10-20 minutes with the engine idling, before proceeding with the oil change.
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Oil Compatibility : Make sure the additive is compatible with the type of oil you are using (usually 0W20 or 5W30 in MultiAir engines).
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Frequency : Every 15,000-30,000 km, or before the onset of severe symptoms.
👍 Extra tip
In addition to using additives, always make sure to:
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Use high quality engine oil
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Respect the replacement intervals
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Fit original or premium equivalent oil filters
🚗 Are you looking for spare parts or additives for your MultiAir engine?
On Autoricambi Tritella you will find selected products and technical support to choose the right additive. Trust those who really know Italian engines!
📆 Conclusion
MultiAir module cleaner additives are a smart, preventative solution to keep your engine running efficiently. Products like Liqui Moly, Bardahl, and Sintoflon are helpful tools to avoid serious damage and costly repairs.
Contact us for personalized advice or visit our blog to discover other articles dedicated to car maintenance.
