I'm having issues with the driver's door handle on my R26. It has been "sticking" when I pull the handle out, sometimes I can't unlock the door and now every time I lock up, the alarm goes off (which is quite inconvenient!!). Could I replace the assembly with a second hand one (from a car with keyless entry) or is it matched to my car so will either need to repair it or get one from the Renault Main Stealers? Thanks Paul