Hi all, when I brought my car I ran VAG com and it showed that the signal for the engine temp sensor was impulsive, it was then that I noticed that the temp gauge didn't actually work. I located the sensor, pulled it out and gave it a clean and refitted and it worked. Next time I started the engine it had stopped working again. Fiddled with it again and it worked then a repeat next time I started the engine. Would this be a fault with the sensor or the connector? Cheers lee
Engine temp sensor
- Thread starter lnewland
- Start date
Bought one for my wifes car last year, the old one was black but, the new one was green and threads on here were saying that the newer ones were green etc. Anyway, if you buy it from Audi you will get the correct one!
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coatesy
poking badgers with spoons
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if you've got an old a3 T sport its a small square blue four pin sensor, my engine is AGU iv just changed mine and bought a green one then was like oh that's blatantly not going to fit so had to research and found out i needed the blue one ,
Audi | Euro Car Parts UKâs No.1 Car Parts Retailer
thats the one i had to put in my AGU
Audi | Euro Car Parts UKâs No.1 Car Parts Retailer
thats the one i had to put in my AGU
i have the same problem. my car tem gets warm stood still but goes cold on the run, it through up the code temp sensor but is the thermostat gone too???
Nope, nothing wrong with your Coolant Sensor in which case, that is simply the thermostat. End of.
Might change my thermostat as well. I saw someone comment recently that there is a knack of changing it without loosing hardly any fluid can anyone give me a heads up on what this nackered is because I have only just had the fluid changed when I had the water pump replaced
ok cheers welly,
so my car has the error code coolant temp sensor, my car wen sat still will rise to 90 however as soon as i start to drive i cools down to 60, is this then the thermostat and not the sensor, how come the sensor throws the code???
so my car has the error code coolant temp sensor, my car wen sat still will rise to 90 however as soon as i start to drive i cools down to 60, is this then the thermostat and not the sensor, how come the sensor throws the code???
Because it's seeing lower than expected readings normally.
If the car is stationary and the temp rocks up to 90 on the dash, the sensor is working perfectly. Think about it, if the sensor was knackered, then it wouldn't be reading properly, like ever.
When you are staionary, the water warms up due to the lack of airflow through the rad, you see that reflected in the sensor reading.
Start with the thermo. 110%.
Drain the fluid out of the system using the tap on the bottom of the rad. This was you can catch and reuse the fluid. Sorted. :thumbsup:
thank you very much Welly, a great help i almost ordered a sensor...
one las question...... where is the thermostat
Thanks
Dan
one las question...... where is the thermostat
Thanks
Dan
Here's a how to guide for the thermo change (be warned, it's fiddly, but not that hard). It's for a Golf GTI, but the same principlesapply, everything is in pretty much the same place.
How To: Replace the thermostat
Thermostat here:
Audi | Euro Car Parts UKâs No.1 Car Parts Retailer
How To: Replace the thermostat
Thermostat here:
Audi | Euro Car Parts UKâs No.1 Car Parts Retailer
Also have a look into you temp sender/switch - that was what was causing faulty temp readings on my dials and therefore leading to bad fuel consumption!
