BMW X3 starter failure with clicking noise and potential solenoid issue on BMW X3

Some BMW X3 owners report experiencing starter failure accompanied by a clicking noise, which typically indicates issues with the starter system, particularly the solenoid. Many owners find that a defective starter can prevent the engine from starting, resulting in a no-start condition. The clicking noise often suggests that while there is enough battery charge to activate the solenoid, there is insufficient power to engage the starter motor. This clicking can indicate that the starter solenoid is receiving voltage, but the motor may not turn over due to low battery power, prompting some owners to recharge or replace the battery before considering starter replacement. Additionally, some owners note that a drop in electrical power, accompanied by the clicking sound, could signify a locked engine, potentially requiring a new engine if caused by a broken connecting rod or timing chain. To troubleshoot, some owners use a Digital Voltmeter to check voltage levels at the starter and solenoid, while also testing for grounding issues. Furthermore, if the vehicle fails to start and displays error codes related to supply terminal voltage or sensors, it indicates underlying issues that must be resolved for successful starting.