2016 BMW 750i XDrive Won't Start

Resolve Starting Issues for Your 2016 BMW 750i 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 2016 BMW 750i 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 2016 BMW 750i xDrive won't start?

When your 2016 BMW 750i xDrive refuses to start, it's essential to adopt a methodical diagnostic approach to identify the underlying issue. Begin by checking the battery, as a weak or dead battery is a common culprit for starting problems. Ensure that the battery terminals are clean and securely connected. Next, inspect the key fob; if the battery in the fob is low or malfunctioning, it may prevent the vehicle from recognizing the key. Additionally, confirm that the gear selector is in the correct position, typically Park or Neutral, as many vehicles have safety mechanisms that inhibit starting in other gears. Pay attention to any warning lights on the dashboard, as these can provide valuable clues about potential issues. If the battery seems to be the problem, attempting to jumpstart the car can help determine if a replacement is necessary. Don't forget to check the fuel gauge; running out of gas is a surprisingly common reason for a no-start condition. Lastly, inspect the fuses for any that may have blown, as this could also be a factor in the starting failure. By following these steps, you can effectively narrow down the cause of the starting issue and take the necessary actions to resolve it.

What are the common problems that could cause a 2016 BMW 750i xDrive to not start?

When troubleshooting a 2016 BMW 750i xDrive that won't start, it's crucial to consider several common problems that may be at play. A weak or dead battery is often the first suspect, as it can stem from either the battery itself or issues within the 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 vital role; faulty spark plugs, ignition coils, or a defective ignition switch can disrupt the spark needed for ignition. Another potential culprit is the starter motor, which, if malfunctioning, will fail to crank the engine. Furthermore, the Engine Control Module (ECM) is essential for managing engine functions, and any issues here can lead to starting problems. Lastly, don't overlook the vehicle's security system; a faulty immobilizer or key fob can also prevent the car from starting. By systematically checking these components, DIYers can effectively diagnose and address the starting issues with their BMW.

How urgent is it to address the starting issue in a 2016 BMW 750i xDrive?

When dealing with a starting issue in your 2016 BMW 750i xDrive, understanding the urgency of the situation is crucial. If your vehicle is completely failing to start or showing intermittent problems, it is essential to address these symptoms promptly. Ignoring such issues can lead to being stranded or, worse, causing further damage to the engine or electrical systems. Additionally, keep an eye on any warning lights that may illuminate on your dashboard, as these indicators can signal more serious underlying problems that require immediate attention. Conducting a diagnostic scan can provide clarity on the root cause of the issue, helping you gauge the urgency more accurately. If you're uncertain, consulting a professional mechanic can offer valuable insights and prevent potential complications. Ultimately, addressing starting issues in a timely manner not only ensures the safety and reliability of your vehicle but also helps you avoid costly repairs down the line.

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