Lenry Posted April 3, 2013 Report Share Posted April 3, 2013 Is it normal for the temp gage to sit at the second / third line (the first group at the far left of the gage well below 70 degrees).Only when the car has stopped for 3 minutes, does the needle point sky wards at 90 degrees.I'm assuming the radiator is doing it's job by cooling the coolant when the car is moving.Only... in the polo the needle points up, after 3-4 minutes, regardless of whether the car is moving.What's your thoughts? Quote Link to comment Share on other sites More sharing options...
Leebo2012 Posted April 3, 2013 Report Share Posted April 3, 2013 The temp gauge should sit in the middle if its going above that then there's a problem. Also it could be giving you false reading so get the cooling sensor checked. Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 3, 2013 Author Report Share Posted April 3, 2013 I thought as much, I wanted to double check before I place an order with my local rip off "VW or SEAT" franchise. Quote Link to comment Share on other sites More sharing options...
lupoluke Posted April 3, 2013 Report Share Posted April 3, 2013 Thermostat, have a search. Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 3, 2013 Author Report Share Posted April 3, 2013 (edited) Have a search? Are you suggest I can get a good one from somewhere other than a VAG garage? Edited April 3, 2013 by Lenry Quote Link to comment Share on other sites More sharing options...
lupoluke Posted April 4, 2013 Report Share Posted April 4, 2013 Use the search function (top right) this has been coverd a bazillion times lol It's easy enough to change if you know how to use a spanner, can get hold of them from any decent motor factors or euro car parts ect, get some coolant too . Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 4, 2013 Author Report Share Posted April 4, 2013 Cool beans - I bet that's a common request "use the bloody forum search feature" :-p Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 7, 2013 Author Report Share Posted April 7, 2013 Hi,Looking for some ideas.I checked the coolent temp sensor (cts) this afternoon.I have a 4 pin yellow banded CTS.Measured the two left pins, while the engine was warming up from cold and found the resistance going down, this is good :-)so the CTS is working.So I thought I would check the voltage going into the CTS, it measured 4.8v.That's all I have :-) anyone know where I go from here?I have putchased a new CTS from SEAT but don't want to use it if it's not required (it cost £37). Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted April 8, 2013 Report Share Posted April 8, 2013 Have you changed the thermostat then? Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 8, 2013 Author Report Share Posted April 8, 2013 Have you changed the thermostat then?No that's still in place, I'm focusing on the CTS as the temp gage is not moving above 55 degrees. Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted April 8, 2013 Report Share Posted April 8, 2013 So it doesn't get to 90 when stationary like you said in your first post? Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 8, 2013 Author Report Share Posted April 8, 2013 Yes it did but that was the only time I've ever seen it at 90. I basically to the car for a 15 blast on a country road loop. During the drive the needle didn't get above 55-60. Only when I parked up and sat with the engine running did the needle slowly creep up to 90. I have a spare Temp sensor (bought one from SEAT the other day). Although the one in the car is responding to heat is it worth me changing it anyway? I was thinking of returning it for a £37.50 refund. Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted April 9, 2013 Report Share Posted April 9, 2013 Well it sounds like your thermostat is stuck open to me Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 9, 2013 Author Report Share Posted April 9, 2013 (edited) Well it sounds like your thermostat is stuck open to meI was coming round to that conclusion, thanks for the advice. I will oder one to for this weekend. I assume it's easy enough to install (I'll search the forum). I'll post the results.Cheers Edited April 9, 2013 by Lenry Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted April 9, 2013 Report Share Posted April 9, 2013 Yes. Be careful not to damage the thing it fits into, I'm told they Are prone to cracking, mine was fine though.Get some coolant to top up with too Quote Link to comment Share on other sites More sharing options...
Lenry Posted April 9, 2013 Author Report Share Posted April 9, 2013 OK, I'll be carful.I have a couple of litters of Coolant ready :-)I confirmed the CTS is OK, by reading the real time temp via ta VAGCOM cable this evening. The took 20 minutes to get to 78 Degrees.I reset the error code for when I disconnected the CTS cable. Quote Link to comment Share on other sites More sharing options...
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