[bluesky]

My MY2018 X3 (late 2017 production) had same check engine light issue occur in mid-2019... after trying “reprogramming”, dealer replaced the indicated Upper Shutters which cleared the fault. (I rarely use Eco or Sport mode). Just today the engine light came on again and the diagnosis now is both Upper and Lower Shutters failed, with parts overnighted to arrive tomorrow morning. Service Advisor acknowledged this has become a well known issue in MY2018 X3 & X5.

Now I’m wondering if enough time has elapsed (~2 yrs) for BMW to begin substituting more robust parts to prevent recurrence of these widespread failures.