OK, so my Cupra tdi during the summer gets to 1/2 way on the temp gauge, and stays there whatever sort of journey I do.
Now the ambient temp has dropped, I have found that the engine temp goes to 1/4 on the gauge, and rarely goes up to 1/2 unless I am ragging it. Now I know that the engine cover normally has a sheet of insulation attached to warm the engine (and keep it quieter), but mine was knackered, so removed it.
Mpg has stayed constant, so thats all good. So whats going on? Is it normal to stay on 1/4 in the winter, or do you think my thermostat isn't working anymore - if it was thermostat I would still expect it to get to 1/2 but just take a long time.
As I say, mpg isn't suffering, and neither is performance. I changed the sensor before the summer, as that had died, so its not that.
Now the ambient temp has dropped, I have found that the engine temp goes to 1/4 on the gauge, and rarely goes up to 1/2 unless I am ragging it. Now I know that the engine cover normally has a sheet of insulation attached to warm the engine (and keep it quieter), but mine was knackered, so removed it.
Mpg has stayed constant, so thats all good. So whats going on? Is it normal to stay on 1/4 in the winter, or do you think my thermostat isn't working anymore - if it was thermostat I would still expect it to get to 1/2 but just take a long time.
As I say, mpg isn't suffering, and neither is performance. I changed the sensor before the summer, as that had died, so its not that.
