Renault SM3 Intake Air Temperature Sensor Issue

It sounds like you're experiencing a similar issue to what I encountered with my 2018 Volvo V60. The symptoms you describe, including the check engine light, reduced power, and a diagnostic code pointing to an air-related sensor, are quite indicative of a faulty sensor. In my case, it was the mass airflow sensor, which, while not identical to your intake air temperature sensor, performs a similar function in measuring airflow. Have you inspected the sensor itself for any visible damage or loose connections?

Thanks for the quick response! I did give the sensor a quick look, but didn't notice anything obvious like frayed wires or cracks. Where was the sensor located in your Volvo? I'm wondering if it's in a similar spot, and maybe I'm missing something. Also, how did you finally resolve the issue with your car?

The mass airflow sensor in my Volvo was located in the intake ducting, directly after the air filter box. Given that your Renault SM3 is experiencing similar symptoms and the diagnostic tool is pointing towards the intake air temperature sensor, it is probable that the sensor is indeed faulty and requires replacement. While you might be able to replace it yourself, given the potential for complications and the need for specialized tools, I would recommend taking your vehicle to a reputable workshop for diagnosis and repair. The cost of replacing the intake air temperature sensor, including labor, is estimated to be around 155€.

Okay, that's what I was afraid of. I appreciate the advice; I'll take it to a shop and have them check it out. Just wanted to make sure I wasn't missing anything obvious. Turns out it was exactly what we thought. The faulty intake air temperature sensor was replaced, and the problem is solved! Thanks again!