To change the idle air control valve on a Renault Megane 2, first, ensure the engine is off and cool. Disconnect the battery and remove the air intake duct to access the valve. Unscrew the old idle air control valve from its mounting, disconnect the electrical connector, and install the new valve by reversing the process. Reconnect the battery, and start the engine to check for proper operation.
yes
The idling speed is automatically sensed ....and set by the Air control valve
valve variator
You turn the valve cap anti-clockwise!
there isn't a drain plug, you will have to remove the bottom hose
Common problem have Solenoid replaced Usually the pressure regulator valve.
EGR valve sooted up
Worn valve, bent valve, damaged piston and/or rings, head gasket failure.
inlet is 0.10 to 0.15mm and exhaust is 0.25to0.30mm ...
E-mail Haynes Car Manuals and ask if they do a manual for this vehicle, then buy one.
Combined mpg actual 1600 rt scenic 8 valve =37.5mpg
in enging compartment