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How to Fix a Mercedes Ignition Key That Won't Work One of the most frustrating things to deal with when you own a Mercedes is an ignition key that won't work. It could be a sign of other issues. There are three primary reasons for Mercedes Benz ignition keys problems. These include a bent or bent key or cable that is not in good condition, and an electronic switch that is not working properly. Loose Cable Cables that are loose can cause your mercedes ignition key to get stuck in place. This issue can be fixed by tightening the cable around the shifter. The nut that connects the shifter to the end of this cable needs to be tightened up to ensure there is no slack left in the wire. This is especially important when you drive your Mercedes with the gears in park, since this causes the shifter to move the cable by one-sixteenth of an inch or so, which could cause your key to get stuck. The loose cable can cause the steering wheel lock to get stuck. This is a crucial security feature of your mercedes since it can stop criminals from attempting to push the car away or using the steering wheel to navigate the vehicle without the key. Another issue that can arise with a mercedes ignition key is that the electronic switch can become worn down and need to be replaced. It's an easy repair, but you need to make sure that the new switch matches the one that is currently in use. A defective switch could lead to a variety of issues, including your vehicle not moving and the lights going out or the radio not working when you turn your key. You can bring your Mercedes to repair or purchase a new OEM Mercedes ignition button. Some ignition keys of Mercedes can become stuck in place even when the car's in park. This is a problem that is common with older Mercedes models. It's typically caused by a loose connection between the locking mechanism within the ignition assembly to the shifter. If you have a key that's locked in place, you should try a jump start and check if this resolves the problem. This is a good way to test the battery, and it's an easy and cost-effective solution. There are many other reasons the ignition key of your Mercedes could not turn but the most common is the battery is dead. This issue is prevalent for all makes and models of vehicles. You should consult an automotive mechanic to diagnose the root reason. Electronic Switch The ignition switch is an essential electronic device in a car. When the key is turned, it triggers different systems. The first position is where you can activate electrical accessories, the second powers the ignition and fuel systems, and the final cranks the engine. The ignition key from Mercedes is unique to each car, and when you insert it into the ignition system the electronic switch examines the key to ensure it's valid. If it's valid the key sends an alert to the steering lock (if your car has one) and other computer systems to unlock the door. This is a great method to get started with your car quickly and easily. Even if you misplace your keys , you'll still be able to access and leave your vehicle without difficulty. But, despite the fact that we enjoy the convenience of our ignition switches they can create serious issues for drivers. If your ignition switch is damaged it may not be able to send enough power to your vehicle's critical electrical components or may have a problem with the connections that could prevent you from starting your car. A defective ignition switch can cause your car to not start at all. This is usually due the fact that the switch does not turn to the ‘on’ position, which powers on fuel or ignition systems. A malfunctioning ignition switch may also cause the key to not turn into the first position. This is where you should look for warning lights on your dashboard. Usually, these lights light up when you press the ignition button , and they dim when your vehicle is running. In some instances, the dashboard lights will remain dark even after you turn the key to turn it on. The reason for this is that the ignition switch will temporarily provide power to the fuel pump and ignition systems if you turn the key to 'on', but then it will cut off power as soon as the key is removed from the 'on' position. If you have any of these problems, the best option is to seek the advice of an auto mechanic. A professional can tell you whether the switch is malfunctioning and what steps to take in order to repair it. Locking the steering wheel Mercedes ignition keys are made with an anti-theft feature in mind. If someone attempts to steal your car and manages to move the steering wheel even though you're not present, it will activate the locking mechanism on the steering wheel and stop the car from moving. This safety measure protects you and your family against being victim to a crime. It also stops thieves from stealing your vehicle. Sometimes the lock might not open or be locked in an unlocked position. It can happen for a number of reasons, such as damaged or worn out ignition tumblers. You can purchase a replacement key or repair it yourself. The first step to fixing this is to remove the ignition lock assembly. To do this, take off the plastic cover that covers the ignition and remove the fasteners. Once you have removed the ignition lock assembly, you can replace it with a brand new one. It is essential to ensure that the new part is an exact match for your car's parts. This will help ensure that the locking mechanism is working perfectly when you install it. Also, ensure that the new ignition lock is properly installed and that all clips are engaged. This is especially important with older models. Another reason that could cause your mercedes ignition key to be stuck in the locked position is wear and tear on the tumblers. This is a typical issue that should be addressed before the cylinder is stuck or snaps off. To unlock the mercedes ignition lock that is stuck in its locked position, apply a small pressure to the key while simultaneously turning the key. To avoid damaging the lock mechanism or the key you must take it slow and gentle. This is a simple and easy way to solve your issue. It's also an excellent way to ensure your mercedes ignition is safe and ready to go whenever you require it. For more information or to make an appointment, call Mercedes-Benz Centerville near Kettering. Tumbler When the key is inserted into the ignition of your Mercedes it transmits detailed infrared data to the electronic ignition switch, which will start the engine. The Mercedes will rotate when the infrared information matches the ECU. The Keylab will start the engine of the Mercedes and power all of its systems. When your Mercedes isn't starting, it may be time to take a closer look at your ignition lock tumbler. In some instances, the tumbler will simply get worn out and require replacement. Sometimes, the tumbler will not be able to engage the electronic ignition button. The most obvious sign that your Mercedes ignition lock tumbler may be malfunctioning is when it fails to turn in the correct direction. When this occurs, it can be frustrating because you may have to fight with the lock for a long period of time before you can start the car. A malfunctioning ignition lock tumbler could also cause the key to become jammed or become completely blocked once it is placed into the lock. If this occurs it's imperative to take the vehicle to your local Mercedes specialist so that they can examine and repair the ignition tumbler of the lock. Other possible causes for the Mercedes Benz ignition lock tumbler that won't turn include a bent key or a worn-out key. If your key has a bent end, it's crucial to smooth the edge with a hammer and try to turn it back. Use an incredibly soft hammer and tap the key carefully. If your key is stuck inside the ignition lock cylinder you can often get it out of the way by gently turning the steering wheel. However, this can be difficult and you must be careful not to break your key while attempting to free it. You can get a replacement keyed Mercedes-Benz ignition lock tumbler in case it's damaged or has gone missing. These parts are specifically made to fit your Mercedes original locks, meaning they will work with your Mercedes system.