04 X5 Temp Gauge in Red even after temp sensor replace

[skorpiond]

Guys,

I noticed my temp gauge needle went all the way to red zone even when the X5 is idle and the engine is completely cold. I had the coolant level low warning and noticed that my coolant level was really low. Bought the coolant and filled it up and did the regular bleeding. Same issue though...

I went ahead and I did a lot of reading and searching and found out about the coolant temperature sensor which I have replaced today, yet the same issue with the temp gauge all the way up is still there.

Any idea?

Again, I don't think is the thermostat as the engine can be completely cold and needle goes to the red zone almost instantly. Please help!

Thanks,
Dany