2021 Mercedes-Benz A35 AMG Key Won't Turn

Troubleshooting Steps to Resolve Ignition Issues with Your 2021 Mercedes-Benz A35 AMG 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 2021 Mercedes-Benz A35 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 the key not turning in the ignition of a 2021 Mercedes-Benz A35 AMG?

When faced with the frustrating issue of a key not turning in the ignition of your 2021 Mercedes-Benz A35 AMG, it's essential to approach the problem methodically. Start by checking for a steering wheel lock, as this is a common and easily overlooked cause. Gently turning the steering wheel while attempting to turn the key can often resolve the issue. If that doesn't work, inspect the key itself for any signs of wear or damage; a worn key may need replacement or reprogramming. Next, consider the ignition cylinder, which could be faulty or damaged due to wear over time. If the ignition cylinder appears to be in good condition, check the vehicle's battery, as a dead or low battery can prevent the ignition system from functioning properly. Lastly, if all these steps fail, the ignition switch may be the culprit, requiring professional inspection and potential replacement. By following this diagnostic approach, you can systematically identify and address the issue, potentially saving time and money on repairs.

What are the common problems that could cause the key to not turn in a 2021 Mercedes-Benz A35 AMG?

When faced with the frustrating situation of a key that won't turn in your 2021 Mercedes-Benz A35 AMG, it's essential to consider several common problems that could be at play. One of the first things to check is whether the steering wheel lock is engaged; this can often be resolved by gently turning the steering wheel while attempting to turn the key. Additionally, a weak or dead key fob battery can prevent the key from functioning properly, so replacing the battery in your key fob is a simple yet effective step. If these initial checks do not resolve the issue, the ignition switch itself may be malfunctioning, which could require professional diagnosis and repair. It's also worth examining the key for any signs of damage or wear, as a faulty key can hinder ignition. Lastly, a locked steering column due to a malfunction in the steering column lock mechanism may be the culprit, necessitating inspection by a qualified technician. By systematically addressing these potential issues, you can effectively troubleshoot and resolve the problem of a key that won't turn in your vehicle.

How urgent is it to address the issue of a key that won't turn in a 2021 Mercedes-Benz A35 AMG?

Addressing the issue of a key that won't turn in your 2021 Mercedes-Benz A35 AMG is not just a matter of convenience; it is a pressing concern that requires immediate attention. Ignoring this problem can lead to significant inconveniences, such as being unable to start your vehicle when you need it most, which can disrupt your daily activities and lead to unexpected delays. More critically, if the key is stuck due to a mechanical failure, it could pose serious safety risks, especially in emergency situations where you need to start your car quickly. Additionally, neglecting this issue may result in further damage to the ignition system or key mechanism, leading to more extensive and costly repairs down the line. Therefore, it is essential to prioritize this problem and seek professional assistance to diagnose and resolve the underlying cause, ensuring your vehicle remains safe and functional.

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Key Not Turning 2021 Mercedes-Benz A35 AMG: Causes & Fixes