The nut has rounded on the heater plug can not get a socket to fit n grip it on my renault master van 2002, what is the easiest way of getting it out not without preventing more damage
Apply direct heat to the plug body in order to make it expand within the threads of the cylinder head then either use 'mole' grips or tap on a slightly smaller socket.
howtomendit.com for free repair help, information and advice.
