2017 BMW 640i XDrive Won't Start

Resolve Starting Issues for Your 2017 BMW 640i xDrive

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Reviewed by
Bo Fader
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 2017 BMW 640i xDrive 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 when a 2017 BMW 640i xDrive won't start?

When your 2017 BMW 640i xDrive won't start, it's crucial to adopt a systematic diagnostic approach to identify the root cause effectively. Start by checking the battery, as a dead or weak battery is often the primary reason for starting issues; you can jump-start the vehicle or measure the voltage with a multimeter. Next, ensure that the key fob is functioning properly, as a depleted battery in the fob can prevent the car from recognizing it. It's also important to confirm that the gear is in the correct position—Park or Neutral for automatic transmissions, or the appropriate gear for manual ones. Additionally, check the fuel level to rule out the possibility of running out of gas. If these initial checks do not resolve the issue, using an OBD-II scanner can help you retrieve any error codes that may point to more complex problems. Furthermore, inspect the fuses related to the starting system for any that might be blown, and visually examine the engine bay for any signs of damage or loose connections. By following this structured approach, you can efficiently narrow down the potential causes of the starting issue and take informed steps toward a solution.

What are the common problems that could cause a 2017 BMW 640i xDrive to not start?

When troubleshooting starting issues with a 2017 BMW 640i xDrive, it's essential to consider several common problems that could be at play. A weak or dead battery is often the first suspect, as it can stem from either the battery itself or the vehicle's charging system. If the battery checks out, the next area to investigate is the fuel system; a clogged fuel filter or a malfunctioning fuel pump can hinder fuel delivery, preventing the engine from starting. Additionally, the ignition system plays a crucial role; faulty spark plugs, ignition coils, or a defective ignition switch can disrupt the ignition process. If these components are functioning correctly, the starter motor should be examined, as a failure here can stop the engine from cranking altogether. Furthermore, the Engine Control Module (ECM) is vital for managing engine functions, and any issues with it can lead to starting problems. Lastly, don’t overlook the vehicle's security system; a malfunctioning immobilizer or key fob can also prevent the car from starting. By systematically checking these areas, you can effectively diagnose and resolve the starting issues with your BMW.

How urgent is it to address the starting issue in a 2017 BMW 640i xDrive?

When dealing with a starting issue in your 2017 BMW 640i xDrive, it is crucial to assess the urgency of the situation. If your vehicle fails to start consistently or presents unusual symptoms such as strange noises or warning lights, these could be indicators of a more serious underlying problem that requires immediate attention. Safety should always be a priority; starting issues can lead to hazardous situations, especially if they occur while driving. Additionally, neglecting these symptoms can result in further damage to your vehicle, leading to more extensive and costly repairs in the future. Addressing the problem promptly not only ensures your safety and that of your passengers but also helps maintain the convenience of your daily routine by preventing unexpected breakdowns. Therefore, it is advisable to take any starting issue seriously and seek a resolution as soon as possible to avoid escalating complications.

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2017 BMW 640i xDrive Won't Start: Causes & Solutions