VT 2016 Polo - Fair wear and Tear question

[Owenie]

Hello. I have recently submitted my letter to VT my 2016 Polo with 40,000 miles on the clock.
Just wondering if the Engine Management light being on (Heated Oxygen Sensor, Bank 1 sensor 2 - Lambda Sensor) is regarded as fair wear and tear? A Lambda sensor should last 50,000 - 60,000 miles and it has only come on this week. Just wondering whether I need to get it fixed or not prior to inspection.

Thanks!