E30 temp gauge was working till 2 weeks ago.suddenly got buzzing sound and then needle point to cold although enging is hot.any idea if temp gauge or thermostat dead?Thanks in advance
check if ur temp sensor is working. u cud ground one of the wires from the terminal to ground and see if the temp gauge move to max or not. if it does, means ur sensor is dead. loose connection oso can cos this... go figure...