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Mine got to be more & more hard to start, and would 'die' at low revs. I had to put it in neutral at traffic lights, and keep the revs up! Got the "Flywheeel sensor" (Top Dead Sensor?) replaced, now it's perfect. See "Renault Megane - Starting problem - coils".

Thanks to all who helped. It was the "Flywheel Sensor" as the garage called it (I'm guessing it's the same thing as the the Top Dead Sensor?), although the computer said 'No fault'. £45 from from Renault Main Dealer - not a free replacement as one might expect, but at least the guy said it had...

PS _ It looks like I might as well replace the "top dead sensor" at the same time. Is that what it's actually called? Ta again.

Hi - It doesn't seem to make that much difference whether it's cold or hot, but it is worse in the mornings (and gradually getting even worse). This morning I thought it wasn't going to start. So I will change the coolant sensor. Can anyone recommend an online source? Thank-you,

BTW, the Haynes book says that a little light should come on if the coolant temp sensor is faulty. I'll have a look in the manual to see just where it should be, but I haven't noticed anything.

>If it's problems starting from cold then the first thing to change would be the engine coolant temp sensor as this controls the fuelling side of things. Thanks - I'll give it a try, anyway. Would you say the coils are ruled out, then? (As it runs well when it starts?). Thanks again,

Mine is an Expression 2001 1.6 automatic. I've read other topics here on this, and it sounds like the starting problem is the coils, EXCEPT... that, once started, it drives very well. Wouldn't a coil problem cause misfiring etc when it was running? It used to start v easily, but gradually...