BMW 7 Series: Check Engine Light and Hybrid System Malfunction

It's possible for previously repaired issues to reoccur, especially if the root cause wasn't fully addressed. For the check engine light and unsteady engine, start by checking for any loose or damaged connections in the ignition system, such as spark plugs or ignition coils. If the hybrid system malfunction persists, it could indicate a deeper issue that needs professional attention. It's important to address these issues promptly, as they can affect vehicle safety and performance. Please update on your findings or if you have further questions.