Temperature Light Flashing

[makil6]

hi folks. hopefully sorted my oil leak today(new crankcase breather pipe(dealer only 25 quid) fitted today) but when i was trying to access the bolts for the pipe i removed the top radiator hose at the temp sensor end. and since putting it back on the light above the temp indicator needle on the dash flashes after about 15 secs of the ignition being switched on. engine doesnt have to be running it just comes on and stays on till the ign. switched off. i've ran the gal as normal with the light flashing and the temp indicator needle doesnt rise any more than it used to. but now the missuss thinks its unsafe and wont drive it, so the question is. have i done some damage when removing the pipe or is there a pressure problem or does this light need to be reset somehow?

thanks. Mike

 

had this in the wrong forum to start with. oops!

[bigdaddy]

Flashing red light is low coolant in the system, and if you have topped up the system then run it at 1500 to 2000 rpm to get engine up to temp (keep an eye on the water level) run it till the fans come on,,,,,,,,,,,,,,,,

 

 

low on coolant or an air block

Edited June 2, 2007 by bigdaddy

[Neils TDi again]

On the back of the expansion tank (filler bowl) is a sensor for coolant level if its come out of its socket it will flash constantly like you describe.

 

Check the connector to make sure.

[makil6]

thanks guys. It was a broken wire on the level sensor on the expansion tank, nothin to do with the other work i had done. its on the front of the tank behind the battery. anyway job done. cheers mike.