The idle air control valve is integrated into the throttle body unit as shown here:
It may not look exactly like that, there was an update some time around then but the parts are very similar and the principles are the same.
There is a forum thread with a few more pictures of the cleaning process here: http://www.renaultforums.co.uk/showthread.php?t=65279
Please note: Moving the throttle butterfly manually may mean you need to undertake a 'throttle body reset' as the throttle is computer controlled and has no physical link to the pedal. The process is discussed and explained here in post 14. http://www.cliosport.net/threads/dont-touch-throttle-body.321352/
This is the process described:
Minimum throttle stop must be reprogrammed as follows:
a) switch the ignition on for approx. 3 secs
b)switch off he ignition and wait aprox, 5 secs
c) restart the engine and allow the coolant temperature to reach 60°C (approx. 3 mins from ambient temp of 20°C
d) road test the car and allow the ECU to learn the throttle valve adaptives