BMW 528i intermittent starting issue with multiple warning lights despite new battery and starter replacement on BMW 528i

Some BMW 528i owners report experiencing intermittent starting issues accompanied by multiple warning lights, even after replacing the battery and starter. These problems are often attributed to common causes such as battery, alternator, or starter failures. In cases where the engine does not attempt to start, it may indicate a malfunctioning starter. To troubleshoot, some owners suggest jump-starting the vehicle, recharging the battery, or using a spare key, while also checking for issues with the fuel system, such as a clogged fuel filter or faulty fuel pump. Additionally, blown fuses or faulty relays may contribute to the problem. For those diagnosing the starter, checking for 12v+ at Terminal 30 during a start request can be helpful. It is advisable for owners to investigate the alternator, fuel system components, and electrical connections to accurately identify the root cause of these starting issues.