i have a renault megane 1.6i 16v coupe y reg.my car usually starts well.but just latley it hasnt a couple times.i was told it might be the immobiliser.so got new key and battery and has been alot better.yesterday it done it again.wouldnt start.but would bump start.it turns over and the light goes out when key in ignition as it should.any ideas?

rob, March 2012