2003 Renault Megane Authentique from UK and Ireland - Comments

The engine management light comes on & there is a loss of power, this fault can occur at any time, not just on start-up. At the same time the engine sounds off-key & runs lumpy. If the engine is switched off & then re-started the engine can run OK. The loss of power is dangerous particularly if entering a round-about or trying to exit a junction. As at 020505, this vehicle has been returned to the main dealer for rectification on numerous occasions, it has had two sets of injector coils, a new set of plugs & a new throttle box. It is still faulting out. I have contacted Renault customer Services & basically they cannot solve this problem any better than the local dealer. I cannot believe that a company like Renault can walk away from this problem. Has any other Renault driver experienced this problem?

This fault is dangerous.

Renaults attitude is unbelievable.

The car design is brilliant.

I would have another Megane if this problem could be cured.

I am having the exact same problem with my wifes 1997 Megane. So far two different Renault garages have not managed to find the fault. Did you ever get it sorted?

I have a Megane Scenic that has the same problem as your one, but engine management light does not come on, local garage fitted new coils, but problem still persists, this is dangerous when overtaking,suddenly power fades and overtaking becomes a nightmare.

I have the same problem it is now only running on 2 cylinders rather than 4, has no power and always cuts out and revs up. the garages have fitted a new lambda sensor, but has not solved are now looking at changing the ECU unit, but this will be very costly - of all the expert opinions no one has been able to solve this problem. I am now worried about forking out lots of money for a new ecu if this will still not solve the problem.

I have a 2000 Megan, well I think its 2000 X Reg anyway, I had a similar problem and apparently there are many versions of the coils which cause this problem, the Grey topped Coil Packs seem to be OK, it's a problem with the older versions.

At least that is what fixed mine.