I have a renault megane 03 plate, 1.6 petrol its been cutting out when starting up and needs extra revs to get it going, recently even the revs haven't kept it going and it just keeps cutting out when my foot comes off the gas a little until its up in higher speeds and warmed up. Then a day after this the toxic fume light and service light came on. I've read lots of forums about what it could be and people seem to have had the same problem but have ended up spending loads of different solutions and parts (suggested and carried out by renault garages) which have done nothing in the way of solving the problem. Any ideas on what could actually be the problem as i certainly do not have the funds to pay out £700-£1000 to the renault garage not to fix the problem. Also is it safe to drive with the toxic fume light on? (I haven't so far, but will be needed to soon, and certainly to at least drive it to the garage)
Thanks

Marianne, January 2013

Toxic fume light, I would think, indicates a bad exhaust gas reading, meaning that the fuel is not burning correctly.
Silly as it may sound, I suggest this, simply because I had a problem, which pointed to similar plus turbo.
Check your air filter. On mine they had not replaced it as they should, PUT a screwdriver through it instead.
SO worth checking, easy way, take it out. IF the engine runs ok, filter, replace ASAP. DO NOT keep running without a filter, will cause other problems.
Just a thought

SD, January 2013