Rick's Free Auto Repair Advice

Posts Tagged: BMW DISA Valve


How to save money on a BMW DISA Valve BMW’s from 2001-2012 contain a BMW DISA Valve to open a secondary passage in the intake manifold to change the length of the intake runner. DISA stands for Differentiated Intake System Actuator. Why do you need a DISA valve? In gasoline engines the intake valve opens during the intake phase to suck in air or an air/fuel mixture. This causes a rapid flow of air down the intake runner. When the valve closes the air slams to a screeching halt and … Read More

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