Renault Megane 2012 Problems

The offer you've had is a normal one offered by most car companies. They pay the cost of the parts and you cover the rest, but to my mind that's a bit of a cop-out. The part failed, and to fail in a matter of three years means it was defective and not up to the job. I agree that you could well have a claim under the statutory consumer laws, but it comes down to how much you want to pursue the matter.