Join Date: Feb 2007
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As was mentioned before, have you checked the speed sensor on the gearbox or haven't the later models got this?
I had the same problem on my megane Phase 1. I bought the sensor from a dealer for £30 and had it fitted during a service I had. Cured my problem straight away. Like I said, not sure if it was mentioned but for info mine was on the top of the gearbox, a little black sensor.
Currently in Mike11's garage:
An LPG powered Ford Focus ST170.