annoying temperature light

  1. L-plater Joined: Nov 2013 blackburn Posts: 73 Saxo vtr 1.6
    #1
    alright guys, just having an issue with my temp warning light coming on

    temperature gauge never goes over the half way mark and I've flushed the system and the light still comes on sometimes, not always though but if i take her down the bypass and after a minute or two it may come on. i checked all the hoses and they aren't anywhere near scalding hot after a good run.

    it's not even getting near worrying pressure either as i took a towel and slowly undid the cap but only a slight bit of pressure was released.

    also bled the air out but still the same , is this something to worry about or should i just ignore it, just checking if anyone has had a similar issue.

    here is a pic of the situation: http://prntscr.com/2bykii
  2. Established Member Joined: Mar 2011 Birmingham Posts: 2148 Rover BRM, Rover 800 Coupe, Mk6 golf.
    #2
    Faulty temp sensor maybe?
  3. L-plater Joined: Nov 2013 blackburn Posts: 73 Saxo vtr 1.6
    #3
    hmm thought it would be that but would my gauge still be working correctly if it was? the lights only started coming on in the last two days but the needle still behaves exactly how its always done, slowly goes up to half and stays there
  4. Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.
    #4
    For the cost of a sensor(around £15-£17)its worth replacing mate.
  5. Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned
    #5
    Quote:
    Originally Posted by just_w00t View Post
    hmm thought it would be that but would my gauge still be working correctly if it was? the lights only started coming on in the last two days but the needle still behaves exactly how its always done, slowly goes up to half and stays there
    A sensor can get erratic sometimes, just get it changed. Worth doing it, as if the car senses overheating, the fan kicks in and overcools the engine. Result is the engine can't get up to temperature and mpg gets worse.


  6. L-plater Joined: Nov 2013 blackburn Posts: 73 Saxo vtr 1.6
    #6
    Quote:
    Originally Posted by stevo67 View Post
    For the cost of a sensor(around £15-£17)its worth replacing mate.
    Quote:
    Originally Posted by Manu View Post
    A sensor can get erratic sometimes, just get it changed. Worth doing it, as if the car senses overheating, the fan kicks in and overcools the engine. Result is the engine can't get up to temperature and mpg gets worse.


    http://www.youtube.com/watch?v=BkizzI9n41k
    Ill get it changed anyway and looking at that video damn! that one is a faulty haha, hate those old green dash lights glad i changed mine!
  7. Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned
    #7
    It happens, as a matter of fact I had to change mine recently, the car was running like a potato simply because the engine then couldnt get up to regular temp as the fan was constantly on. The heater was way off too, despite that the needle was working properly while I got a fault code showing through. New sensor and 2 minutes later and it was all sorted.
  8. L-plater Joined: Nov 2013 blackburn Posts: 73 Saxo vtr 1.6
    #8
    Quote:
    Originally Posted by Manu View Post
    It happens, as a matter of fact I had to change mine recently, the car was running like a potato simply because the engine then couldnt get up to regular temp as the fan was constantly on. The heater was way off too, despite that the needle was working properly while I got a fault code showing through. New sensor and 2 minutes later and it was all sorted.
    cheers i will get it changed, i just though it was odd that the car has absolutely no symptoms what-so-ever regarding the cooling system, and she runs perfect as well so just wondering if anything else could cause this light to go off like a dash fault or anything, only thing that made me think it wasn't the sensor is the gauge is perfect still, first things would be the sensor though like you say, cheers!