BMW M850i XDrive Key Won't Turn

Troubleshooting Common Issues When Your BMW M850i xDrive Key Won't Turn and How to Resolve Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
35% chance it's the
Binding Steering Column/Lock
0%
27% chance it's the
Ignition Switch
0%
20% chance it's the
Ignition Key
0%
18% chance it's
Something else
The most common reasons a BMW M850i xDrive key won't turn are a binding steering column/lock, an ignition switch issue, or a problem with the ignition key.
  • Binding Steering Column/Lock: A binding steering column or lock can occur due to a worn or damaged steering column assembly or issues with the ignition lock mechanism.
  • Ignition Switch: A faulty ignition switch can prevent the engine from starting or cause intermittent electrical issues, affecting the vehicle's ability to run properly.
  • Ignition Key: A worn or damaged ignition key or ignition cylinder can prevent the key from turning, 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.

Troubleshooting Key Ignition Issues in a BMW M850i xDrive

When troubleshooting key ignition issues in your BMW M850i xDrive, it's essential to adopt a systematic diagnostic approach. Begin by checking the key fob, as many problems stem from key recognition failures. Start with a simple battery replacement for the key fob, as a low battery can often lead to the key not being recognized by the vehicle. If the key still isn't detected, attempt to resynchronize it with the car, which can often resolve communication issues. Next, inspect the vehicle's battery and electrical system; ensure that the battery is fully charged and that there are no loose connections. If the car still fails to start, consider examining the ignition module and related components, as these can also contribute to ignition problems. By following this methodical approach, you can effectively identify and resolve key ignition issues, saving time and potentially costly repairs.

What to Do When Your BMW M850i xDrive Key Won't Turn?

When faced with the frustrating situation of your BMW M850i xDrive key not turning, it's essential to understand the common problems that could be at play. One of the primary culprits is a binding steering column or lock, which can often be resolved by gently moving the steering wheel side to side while attempting to turn the key. Additionally, issues with the ignition switch or the key itself may arise, so inspecting these components is crucial. A weak battery, either in the key fob or the vehicle, can also prevent the key from functioning properly; therefore, checking the battery's condition is a vital step in your troubleshooting process. If these basic checks do not yield results, consider reaching out to BMW customer service for further assistance. Lastly, for owners of second-generation 8-Series models, keeping an eye on tire wear is important, as it can indirectly affect the vehicle's overall performance and functionality. By being aware of these common problems, you can take informed steps to resolve the issue and get back on the road.

What to Do When Your BMW M850i xDrive Key Won't Turn?

When your BMW M850i xDrive key won't turn, it's essential to act quickly to avoid further complications that could lead to costly repairs or safety risks. One of the first things to check is whether the steering column is binding, which can happen if the steering wheel is locked. Gently moving the wheel while attempting to turn the key can often resolve this issue. Additionally, inspect the ignition switch for any faults that might obstruct the key's movement. It's also wise to examine the key itself for any signs of damage or wear that could hinder its function. If these initial checks don't yield results, try gently jiggling the key while applying slight pressure, but be cautious not to force it, as this could damage the ignition system. If the problem persists, seeking professional assistance is advisable, as a qualified mechanic or locksmith can provide a thorough diagnosis and prevent further damage. Addressing these issues promptly is crucial, as neglecting them can lead to more significant problems down the line, impacting both your vehicle's performance and your safety on the road.

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BMW M850i xDrive Key Won't Turn? Troubleshooting & Repairs