Need advice regarding engine code P0440

Hello all, I have never posted here before

I drive a 2018 xdrive x1, and recently my check engine light came on

I read the code and it displayed as P0440, for the EVAP system

2018-19 x1’s are covered under extended warranty for the air pump in the EVAP system

I called my local BMW and they said that they would need to perform a diagnostic ($210) to determine whether the malfunction is indeed caused by the air pump If it is, they’ll waive the diagnostic fee and replace the part for free

Should I take my chances and hope that the light is a result of the air pump malfunction ? Any x1 owners have any advice for me? I’m sitting just over 80k miles

Thanks and I appreciate any advice!