I am looking for the coolant temp sensor on my 2005 TT 3.2. I think it is on the right side of the engine near the air box. I see two sensor looking things, one with a black connector and one with a red one. Is it one of these or is it somewhere else?

I am getting p2181 and am going to replace the sensor first before going to more expensive means. Also if you have any suggestions or tips on replacing the sensor, feel free to offer them up.

Thanks in advance!