recently had a new radiator fitted and since then the dash orange coolant warning light is on permanent, now the only sensor i think it could be is the one that pops into the plastic water tank/ is there a quick fix?I had the same problem on my 2.5 diesal....i got rid of the annoying orange light by removing the sensor from the water bottle , then putting a small bit of wire into the connector to complete the circuit and cause the light to go out...This is only a temporary measure till i get a new sensor , and of course i check the water level much more often , and keep an eye on the tempreture , as now i don,t have any warning of low coolant level....