[Lockhah]

Hi folks! New member here. Proud owner of a 2020 XC40 Inscription and new to Volvo for that matter. My CEL came on at 752 miles. I did a quick check with my OBD2 Scanner and found the upstream O2 Sensor had failed. Took it to the dealer and they confirmed what I found. Dealer replaced both sensors (upstream and downstream of Cat Converter). To have an O2 Sensor failed that early in a vehicle life is quite surprise to me. They are very reliable and should last a minimum of 50-60M miles. Hoping this is a "one of". Your thoughts?

 

[bdalameda]

All O2 sensors are outsourced by the OEM and manufactured by only a very few companies, Bosch, Denso, NGK and perhaps a couple of others. Doubtful that you will have to worry about another failure and this failure is probably just a simple defect. Here in the US the federal requirement is that any part of the emission control system must be warrantied for 8 years or 80,000 miles. The failure of this sensor has nothing to do with Volvo's quality or dependability.

 

[Lockhah]

Thanks for the thorough explanation. I do hope this is the case.