2020 BMW I3 Won't Start

Common Causes for Your 2020 BMW i3 Not Starting and How to Resolve Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2020 BMW i3 won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take for a 2020 BMW i3 that won't start?

When your 2020 BMW i3 refuses to start, it's essential to approach the problem methodically to identify the root cause. Begin by checking the battery, as a weak or dead battery is often the most common culprit. Ensure it is fully charged and in good condition, as this can save you time and effort. Next, inspect the key fob; a malfunctioning key fob can prevent the vehicle from recognizing the key, so make sure it is working properly. Additionally, verify that the gear selector is in the correct position, typically Park or Neutral, as many vehicles require this for starting. Pay attention to any error messages or warning lights on the dashboard, as these indicators can provide critical insights into the issue at hand. If the battery appears weak, consider jump-starting the vehicle with jumper cables and a functioning car. Lastly, check the fuses related to the starting system, as a blown fuse can also hinder the starting process. By following these steps, you can effectively diagnose and potentially resolve the starting issue with your BMW i3.

What are the common problems that could cause a 2020 BMW i3 to not start?

When troubleshooting a 2020 BMW i3 that won't start, it's crucial to consider several common problems that could be at play. One of the primary issues often stems from battery concerns; an old or depleted battery can fail to provide the necessary power to start the vehicle. Additionally, the key fob may be malfunctioning, which can occur if its battery is dead or if there is a connectivity issue, preventing the car from recognizing the key. Another potential culprit is a faulty starter motor, which can lead to intermittent starting problems. Furthermore, issues within the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump, can hinder the engine's ability to receive fuel, thus preventing it from starting. Lastly, problems with the ignition system, including a defective ignition switch or worn spark plugs, can also contribute to starting difficulties. Accurately diagnosing these issues is essential for effective resolution, ensuring that your BMW i3 can get back on the road without delay.

How urgent is it to address the starting issue in a 2020 BMW i3?

When dealing with a starting issue in a 2020 BMW i3, the urgency of the situation cannot be overstated. If the vehicle fails to start completely, immediate action is necessary to prevent being stranded or causing further damage to the car's electrical system. Additionally, the presence of warning lights or error messages should not be ignored, as they often indicate underlying problems that could compromise safety or lead to costly repairs if left unaddressed. Even intermittent starting issues warrant prompt attention, as they may signal a deteriorating component that could fail entirely if neglected. Regular maintenance plays a crucial role in vehicle health, and addressing starting issues quickly can help avoid more significant problems down the line. Therefore, it is essential for DIY enthusiasts to prioritize these symptoms to ensure the reliability and safety of their BMW i3.

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