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How to Fix a Mercedes Ignition Key That Won't Work One of the most frustrating issues to face when you own a Mercedes is an ignition key that doesn't work. It can be an indicator of other issues, too. There are three main reasons for Mercedes Benz ignition key problems. These include a bent key or a cable that is loose, and an electronic switch that's malfunctioning. Loose Cable Loose cables can cause your Mercedes ignition key to get stuck. This problem can be resolved with an easy tightening of the cable that connects to the shifter. Make sure that the nut at the end of the cable that connects to the shifter is tightened tightly so that the wire isn't sagging. This is particularly important for those who drive their Mercedes with the gear set to park, as this could cause the shifter to move the cable by about a 16th of an inch or so, which could result in your key getting caught. This loose cable could also cause your key to bind to the lock on your steering wheel. This is an essential security feature of your mercedes as it blocks potential thieves from dragging the car away or using the steering wheel to navigate the vehicle without the use of a key. A mercedes ignition button can be worn out and require to replaced. It's a simple fix which can be accomplished quickly, but it is important to make sure your new switch is in line with the one you currently have. A defective switch could cause a variety of issues, like your vehicle becoming stuck and the lights going out or the radio not working when you turn your key. You can either bring your Mercedes to repair or buy a new OEM Mercedes ignition button. Certain ignition keys from Mercedes can get stuck even when your car is in park. This is a typical issue in older Mercedes models, and is usually caused by a loose cable that connects the locking mechanism in your ignition assembly to the shifter. Jump start is a great way to verify that your key is still in place. This is a great method to test the battery, and it's a quick and cheap solution. There are a variety of other reasons that your mercedes ignition key may not work however the most common is the battery being dead. This is a common issue for all models and makes of automobiles. It is recommended to consult an auto mechanic to find the exact cause. Electronic Switch The ignition switch is a crucial electronic part of a vehicle. It has several positions that provide power to various systems when the key is turned. The first one activates electric accessories, while second turns on the ignition and fuel systems. The third position cranks the engine. Each mercedes ignition keys is unique. When you insert the key into your car's ignition the electronic switch checks the authenticity of the key. If it's valid it sends signals to the steering lock (if your vehicle has one) and other computer modules to unlock the door. This is a fantastic way to get started with your car quickly and easily. Even if you lose your keys , you'll still be able to get in and exit your car without any trouble. However, even though we love the convenience of our ignition switches, they can pose serious dangers for our roads. If the ignition switch you use is not working properly it may not provide enough power to your car’s critical electrical components or may have a problem with the connections that could prevent you from starting your car. A malfunctioning ignition switch may cause your car to not start at all. Often, this is because the switch doesn't turn to the 'on' position -which turns on the fuel and ignition systems. Another indication of a malfunctioning ignition switch is that it will not go into the initial position, where you could look for warning indicators on the dashboard. Usually, these lights light up when you press the ignition button and then dim once the car is running. In other situations, the dashboard lights remain dark after you move your key to the “on' position. The reason for this is that the ignition switch will briefly provide power to the ignition and fuel pump systems if you turn the key to 'on but it will stop power once the key is removed from the “on” position. You should contact an auto mechanic if you encounter any of these problems. A qualified mechanic can tell if the switch is defective and the steps to do to fix it. Steering Wheel Lock Mercedes ignition keys are designed with an anti-theft feature in mind. If someone steals your vehicle and manages to move the steering wheel even though you're not present it will activate the lock on the steering wheel and stop the car from moving. This security measure protects your family and you from being victim to the perpetrator of a crime. It also prevents thieves from taking your car. Sometimes the lock may not be unlocked or remain locked in an unlocked position. This can happen for many reasons, such as worn or damaged ignition tumblers. You can either purchase the key replaced or fix the issue yourself. To fix this issue, you'll need to take off the ignition lock assembly. To do this, you must remove the plastic cover that covers the ignition, and take out the fasteners. Once you've removed the ignition lock assembly, you are able to replace it with a brand new one. It is important that the new piece matches your car's parts. This will help ensure that the locking mechanism works correctly when you install it. It is also important to ensure that the new ignition lock is correctly installed and that all of the clips are engaged correctly. This is especially crucial for older models. Another reason that could cause your ignition key for mercedes to get stuck in the locked position is wear and tear on the tumblers. This is not an uncommon issue that should be fixed before the cylinder is totally stuck or snaps off. To unlock a mercedes ignition key that's stuck in the locked position, you should try applying a bit of pressure to the key while simultaneously turning it. It is recommended to do this slowly and slowly, in order to avoid damaging the lock mechanism or the key. This is a fast and easy way to solve your problem. This is a great way to ensure your Mercedes ignition is ready and secure, so you can operate it whenever you need to. If you require further assistance call Mercedes-Benz of Centerville near Kettering for more information or to set up an appointment. Tumbler When you insert a key into the ignition of your Mercedes it transmits specific information to the electronic ignition switch that will turn the engine on. The Mercedes will rotate when the infrared information is in sync with the ECU. This is the start of the engine and powers the many components inside it. If your car isn't starting, it might be an opportunity to look at the ignition lock tumbler. In some cases, the tumbler will simply wear out over time and require replacement. Sometimes, mercedes car key programming will be unable to engage the electronic ignition switch. One of the most common indications that the Mercedes ignition lock tumbler is defective is that it doesn't turn into the proper position. When this occurs, it can be frustrating as you could have to struggle with the lock for a long time before you are able to get the car started. Another sign of an ignition lock tumbler not working properly is that it could get jammed up or completely block the key when it's inserted into the lock. If this happens it's imperative to take your vehicle to a local Mercedes specialist to have them examine and repair the ignition tumbler of the lock. Other possible causes for a Mercedes Benz ignition lock tumbler that won't turn include the possibility of a bent or worn-out key. If your key's bent end causes it to not turn then you can flatten it with a hammer to make it straight again. Use the hammer with a soft, gentle head and gently tap. If your key is stuck inside the ignition lock cylinder, you can often get it free by gently jiggling the steering wheel. But, this can be difficult and you should be cautious not to break your key while attempting to untangle it. You can purchase a new keyed Mercedes-Benz ignition tumbler if it's damaged or not working. These parts are made to fit your Mercedes original locks, so they will work with your Mercedes' system.