What causes the BMW X5 to fail to start and make abnormal noises?

2 Answers
OBrayden
07/24/25 12:22am
BMW X5 failing to start and making abnormal noises is usually caused by insufficient battery power and other reasons. Below is relevant information: Reasons for failing to start with abnormal noises: Insufficient battery power; Battery voltage too low; Battery malfunction; Fuel supply system failure; Ignition system failure; Incorrect gear position. Solutions for failing to start with abnormal noises: Charge the battery; Replace the battery; Shift to P gear before starting; Replace the ignition system; Replace the fuel supply system. Method for starting the vehicle: Insert the key and turn on the ignition switch; Press the clutch pedal and shift the gear lever into 1st gear; Release the handbrake and lift the clutch pedal, then press the accelerator.
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MacValeria
08/10/25 8:09pm
I've experienced a similar issue with my BMW X5 before - it wouldn't start and made a clicking noise. At first I thought the battery was dead, but voltage tests showed it was fine. Turned out the starter motor's gear was stuck, causing that grinding sound. Especially in cold winters when battery performance drops significantly, these strange noises are more likely to occur. When you hear clicking during startup attempts, it's best not to keep trying repeatedly to avoid damaging the starter or draining the battery. I recommend first checking if the battery terminals and connections are loose or corroded. If those are fine, take it to a shop for professional diagnostic equipment. BMW's electronic systems are quite smart but occasionally temperamental - fixing issues early saves both hassle and money. Regular maintenance of the starting system every six months can prevent such problems.
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