2018 Mercedes-Benz AMG GT C Key Won't Turn

Troubleshooting Steps to Resolve Ignition Issues with Your 2018 Mercedes-Benz AMG GT C Key

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Reviewed by
Andrew Hajjar
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 2018 Mercedes-Benz AMG GT C 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.

What are the potential causes for the key not turning in a 2018 Mercedes-Benz AMG GT C, and how should I diagnose them?

When faced with the issue of a key not turning in a 2018 Mercedes-Benz AMG GT C, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start with the simplest solutions, such as checking the key fob battery; a low battery can easily prevent the key from functioning properly. Next, examine the steering wheel to ensure it isn't locked, as this can also hinder the key's movement. If these initial checks don't resolve the issue, inspect the ignition cylinder for any signs of wear or damage, as a faulty cylinder may require professional attention. Additionally, confirm that the transmission shift lever is correctly positioned in "Park" or "Neutral," as an improper gear selection can block the key from turning. Lastly, evaluate the key itself for any visible damage or wear, and consider testing a spare key to rule out the possibility of a faulty original. By following this methodical approach, you can effectively diagnose and address the key turning issue in your vehicle.

What are the common problems that could cause the key to not turn in a 2018 Mercedes-Benz AMG GT C?

When facing the frustrating issue of a key that won't turn in a 2018 Mercedes-Benz AMG GT C, it's essential to understand the common problems that could be at play. One frequent culprit is the steering wheel lock, which can engage if the steering wheel is turned after the engine has been turned off, effectively preventing the key from turning. Additionally, a faulty key fob or a weak battery within it can hinder ignition, making it necessary to either replace the battery or the entire fob. Ignition switch issues, stemming from wear and tear or electrical malfunctions, may also be responsible, potentially requiring repair or replacement. Furthermore, a defective ignition cylinder can obstruct the key's movement, necessitating inspection and possible replacement by a qualified mechanic. Lastly, problems with the steering column lock mechanism can contribute to this issue, which may also need repair or replacement. If you encounter this problem, it's advisable to consult a professional mechanic who can accurately diagnose the issue and recommend the best course of action.

How urgent is it to address the ignition issue in a 2018 Mercedes-Benz AMG GT C when the key won't turn?

When dealing with an ignition issue in a 2018 Mercedes-Benz AMG GT C where the key won't turn, it is essential to recognize the urgency of the situation. Ignoring this problem can lead to immediate inconveniences, such as being unable to start your vehicle, which can disrupt your daily plans or leave you stranded in an unfamiliar location. Moreover, this ignition malfunction may indicate deeper issues within the vehicle's security system or electrical components, posing significant safety risks if left unresolved. Additionally, neglecting the problem could result in further damage to the ignition system or related parts, leading to more extensive and costly repairs down the line. Therefore, it is highly advisable to seek professional assistance to diagnose and address the ignition issue promptly, ensuring the vehicle remains safe and functional.

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