BMW 540i engine does not start after being inactive for two years, possible solenoid issue on BMW 540i

Some BMW 540i owners report experiencing starting issues after their vehicles have been inactive for two years, often related to the solenoid. In some cases, when attempting to start the engine, the solenoid may click but fail to engage, indicating a potential malfunction. Additionally, while jump-starting the car from the front of the engine may yield inconsistent results, jump-starting directly from the battery terminals tends to be more successful, further suggesting that the solenoid could be the culprit. To resolve these starting problems, it is advisable for owners to have the solenoid inspected and possibly replaced.