Volvo 850 » Ambient Outside Air Temperature Sensor

If the dash mounted digital outside air temp gauge in your Volvo is reading incorrectly or not at all, it is most likely caused by a failed or missing ambient temp sensor. The sensor is mounted up behind the front spoiler so it I subject to quite a harsh environment and can easily be knocked off if you scrape a parking block or curb. Easily replaced in about 5 minutes, no tools required.