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How to Fix a Mercedes Ignition Key That Won't Work An ignition key that does not work is one of the most frustrating issues you'll have to face when driving in a Mercedes. It can be an indicator of other issuesas well. There are three main causes for Mercedes Benz ignition keys problems. They are a bent key as well as a loose cable and an electronic switch that is not working properly. Loose Cable The loose cables can cause your Mercedes ignition key to become stuck. mercedes benz car key replacement can be solved by an easy tightening of the cable connected to the shifter. The nut that connects the shifter to the end of this cable needs to be tightened in a way that there is no slack left in the wire. This is particularly important when your Mercedes is in the park position. The shifter can move the cable about one sixteenth inch, which could cause your key to get stuck. This loose cable can also cause your key to be tied to the steering wheel lock. This is an important security feature for your Mercedes. It helps prevent thieves from taking the car away or using the steering wheel to drive without having a key. The ignition switch on a Mercedes can be worn out and require to be replaced. It's an easy fix, but you need to make sure that the new switch matches the one that is currently in use. A faulty switch can cause a myriad of issues, such as your car stalling, the lights going out, or the radio not working when you turn your key. It is recommended that you bring your mercedes in for this repair, or simply purchase an OEM Mercedes ignition switch. Certain Mercedes ignition keys may get stuck even when the car is in park. This is a problem that is common in older Mercedes models, and is typically caused by loose cables that connect the locking mechanism in your ignition assembly to the shifter. If you have a key that's locked in place, try a jump start and check if this resolves the problem. This is a fast and easy method to test your battery. There are many reasons why your Mercedes ignition keys might not be turning. Most commonly, it's the battery is damaged or dead. This is a common issue for all makes and models of vehicles. You should consult with an automotive mechanic to identify the cause. Electronic Switch The ignition switch is an essential electronic part of a car. When the key is turned, it triggers different systems. The first one activates electrical accessories, while the second powers the ignition and fuel systems, while the third cranks the engine. The mercedes ignition key is unique to each car and when you insert it into the ignition system the electronic switch will check the key to verify that it's valid. If it's valid the key sends an alert to the steering lock (if your vehicle has one) as well as other computer modules to unlock the door. This is an excellent way to start your car quickly and easily. Even if you lose your keys , you'll be able to be able to get into and out of your car with no difficulties. However, while we love the convenience of our ignition switches, they also cause issues on the road. If the ignition switch is faulty it might not be sending enough power to your car's critical electrical components, or it may have missing connections that could keep you from starting your car. A faulty ignition switch can cause your vehicle to not start at all. This is usually due to the fact that the switch doesn't change to the “on” position, which turns on fuel or ignition systems. A malfunctioning ignition switch could cause the key to not go into the first position. This is where you can check for warning lights on the dashboard. The lights are usually activated when you press the ignition button. They then dim when your car is started. In other situations the dashboard lights stay dark after you turn your key to the 'on' position. This is due to the fact that the ignition switch temporarily provides power to the ignition, fuel pump systems, and other systems when the key is turned to “on”. However it will cut off power when the key is removed. You should seek out an auto mechanic if you have any of these issues. An expert can identify if the switch is malfunctioning or not, and the steps you can take to fix it. Steering wheel lock Mercedes ignition keys have an anti-theft feature. If someone breaks into your vehicle and manages to move the steering wheel even though you're not around it will activate the lock on the steering wheel and keep the vehicle from moving. This security measure is designed to guard you and your family from being injured during a crime. It also prevents thieves from taking your car. Sometimes the lock may not unlock or remain locked in an unlocked position. It could be due to a number of reasons, including worn or broken ignition tumblers. You can purchase an alternative key or fix it yourself. The first step to fix this is to remove the ignition lock assembly. To do this, you must remove the plastic cover that covers the ignition and remove the fasteners. Once you've removed your ignition lock assembly, you'll be able to replace it with a brand new one. It is crucial to ensure that the new part is compatible with the car's components. This will help ensure that the locking mechanism is working correctly when you install it. Also, make sure that the new ignition lock is correctly installed and that all of the clips are in the correct position. This is especially important for older models. Another issue that can cause your mercedes ignition key to stop working in the locked position is wear and tear on the tumblers. This is a frequent issue that needs to be addressed prior to the cylinder getting stuck or snaps off. To unlock a mercedes ignition lock that is locked in its position, apply a bit of pressure to the key while simultaneously turning the key. It's best to do this slowly and gently, so as not to harm the lock mechanism or the key. This is a quick and easy way to solve your issue. It's also a great option to ensure your mercedes ignition is secure and ready to go when you need it. If you need additional help call Mercedes-Benz of Centerville near Kettering for more details or to schedule an appointment. Tumbler When you insert an ignition key into the ignition of your Mercedes it sends detailed information to the electronic ignition switch to turn the engine on. The Mercedes will turn when the infrared data is in sync with the ECU. This starts the car's engine, and also powers the numerous components inside it. If your Mercedes isn't able to start then it's probably time to take a closer look at the tumbler in your ignition lock. Sometimes, the tumbler will get old and needs to be replaced. Sometimes, the tumbler will not be able engage the electronic ignition button. The most obvious sign that the Mercedes ignition lock tumbler could be defective is when it doesn't turn in the right direction. This can be frustrating as you might be fighting the lock for a while before the car can turn. Another symptom of an ignition lock tumbler that's malfunctioning is that it will block or completely block the key when it's placed into the lock. If this happens it's crucial to take the vehicle to the local Mercedes specialist so that they can examine and service the ignition tumbler of the lock. A bent or worn-out key are also possible the reason why your Mercedes Benz ignition lock tumbler will not turn. If your key has a bent end, it's important to flatten the bent end using the hammer and attempt to turn it. Be sure to employ a hammer that is soft and that you tap very carefully. You can sometimes remove your key from the ignition lock by gently jiggling the cylinder. This isn't easy, so make sure not to harm your key when trying to loosen it. If you have a broken or missing Mercedes ignition lock tumbler, you can get an original keyed replacement from your local Mercedes-Benz dealer. These parts are specially designed to fit the original locks on your vehicle so you can be confident that they'll have the ability to work with the system that is in your Mercedes.