2017 Mercedes-Benz C63 AMG Key Won't Turn

2017 Mercedes-Benz C63 AMG key won't turn in ignition

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Reviewed by
Devin Cabugcal
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 2017 Mercedes-Benz C63 AMG 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 a 2017 Mercedes-Benz C63 AMG key not turning, and how should I diagnose them?

When faced with a situation where your 2017 Mercedes-Benz C63 AMG key is not turning, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start with the simplest solution by checking the key fob battery; a dead battery is a common issue that can easily be resolved by replacing it. If the battery is functional, inspect the key fob for any signs of physical damage, as a faulty fob may require repair or replacement. Next, consider the ignition lock cylinder, which can wear out over time or become jammed, preventing the key from turning. If you suspect this is the case, a professional locksmith or mechanic may need to assess and repair it. Additionally, check if the steering wheel lock is engaged; gently turning the steering wheel while attempting to turn the key can sometimes release the lock. If none of these steps resolve the issue, the ignition switch itself may be faulty, necessitating a more in-depth inspection and potential replacement by a qualified technician. By following this methodical approach, you can effectively diagnose and address the problem with your vehicle's ignition system.

What are the common problems that could cause the key to not turn in a 2017 Mercedes-Benz C63 AMG?

When dealing with a key that won't turn in a 2017 Mercedes-Benz C63 AMG, it's essential to understand the common problems that could be at play. One frequent issue is the steering wheel lock mechanism, which can engage if the steering wheel is turned after the engine is turned off, making it difficult to turn the key. Additionally, a faulty key fob or a weak battery can prevent the key from turning, so checking and possibly replacing the battery in the key fob is a good first step. Ignition switch problems, such as wear or electrical issues, may also hinder the key's movement, potentially requiring repair or replacement of the switch. Furthermore, a malfunctioning ignition cylinder can be the culprit, necessitating inspection and possibly replacement by a qualified mechanic. Lastly, issues with the steering column lock, whether due to damage or malfunction, can also obstruct the key from turning. If these common problems are not resolved through simple troubleshooting, consulting a professional mechanic is advisable to accurately diagnose and address the issue.

What should I do if the key won't turn in my 2017 Mercedes-Benz C63 AMG?

If you find that the key won't turn in your 2017 Mercedes-Benz C63 AMG, it's crucial to address the issue promptly to avoid further complications. Ignoring this problem can lead to being stranded or, worse, potential damage to the ignition system. Start by examining the key for any signs of wear or damage, as a faulty key can often be the culprit. Additionally, check the steering wheel; sometimes, the steering lock can engage, preventing the key from turning. If these steps don’t resolve the issue, inspect the key fob battery, as a weak battery can interfere with ignition. Should these DIY solutions fail, it may indicate a deeper problem with the ignition switch, which could require professional assistance. Taking swift action not only ensures your safety but also helps prevent costly repairs down the line.

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2017 Mercedes-Benz C63 AMG Key Won't Turn: Causes & Fixes