http://www.gearbest.com/car-gadgets/p... if you need ODBII for older renault
if your heater blower is on full and you cannot turn it off, then probably you need to change your resistor pack. hour job max. cost 15 dollars for the item. And mechanic would take much more to change it.
http://haggarddiy.blogspot.com/2015/0...
• Renault scenic 2004 ignition coil change Coil change