How to access the Idle Air Control Valve, Renault Clio mk2

Question

I have an idling issue with my Renault Clio mk2 1.2L 2002 - the engine stalls as I slow down at lights and roundabouts etc...

I have been searching the web for solutions to this problem, Most answers point towards the Idle Air Control valve needing cleaning/replacing - I am now trying to locate it in the engine I did find a diagram, however I am not sure if it is accurate.

How do I get to the IACV, or even better do you have a few pictures/video demonstrating how to access it?

Thanks.

Sam · Accepted Answer

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

user74200 · Answer

By the way, this:

the throttle is computer controlled and has no physical link to the pedal

is incorrect. This is me pushing the lever on my Clio 2 1.2 8V 2007 throttle that the wire that the pedal pulls actuates:

As you can clearly see, the throttle butterfly valve is open because I push the lever. This means that the throttle pedal actually does have a physical link to the throttle valve! The only thing that is computer controlled is the idler valve, but I don't know how you would move that, since it is pretty hard to get to and spring-loaded, so if you move it, it will go back to the original (closed) position anyway. Anyway, even those computer-actuated throttle valves actually are spring-loaded too. And if your throttle is computer-actuated, you probably do not have any idler valve, because the computer does the same with the throttle valve.

How to access the Idle Air Control Valve, Renault Clio mk2

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