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How to Fix a Mercedes Ignition Key That Won't Work An ignition key that does not work is among the most frustrating things you have to deal with when driving a Mercedes. It could also be an indication of other issues. There are three main causes for Mercedes Benz ignition key problems. The most common causes are a bent key cable, loose wires, and an electronic switch that is malfunctioning. Loose Cable Cables that are loose can cause the ignition key of your Mercedes to get stuck. This problem can be resolved with an easy tightening of the cable connected to the shifter. The nut that connects the shifter to the end of the cable must be tightened to ensure that there is no slack left in the wire. This is particularly crucial when you drive your Mercedes with the gear set to park, as this could cause the shifter to move the cable one-sixteenth inch or so, which may cause your key to get stuck. The loose cable could also cause the lock on your steering wheel to become stuck. This is a crucial security feature of your mercedes since it can stop potential thieves from pushing the car away or using the steering wheel to drive the vehicle without the use of a key. Another issue that could arise with an ignition key for a Mercedes is that the electronic switch might become worn down and need to be replaced. This is an simple repair, however you need to ensure that the new switch matches the one you have. A damaged switch can lead to a variety of issues, including your car stalling, the lights not working, or the radio not working when you turn your key. It's best to bring your Mercedes in to have this repaired, or simply purchase the new OEM Mercedes ignition switch. Certain ignition keys from Mercedes can also become locked even when the vehicle is in park. This is a typical issue in older Mercedes models, and is typically caused by a loose cable that connects the locking mechanism inside your ignition assembly to the shifter. If you have a key locked in place, you must try a jumpstart and see if this solves the problem. This is a good way to test the battery, and it's a quick and affordable solution. There are many reasons why your ignition keys for Mercedes may not work. The most common reason is an inoperable or damaged battery. This problem is common for all models and makes of vehicles. You should consult with an auto mechanic to find the reason. Electronic Switch The ignition switch is a crucial electronic component in a vehicle. It is equipped with several positions that power on different systems as the key is turned. The first one activates electrical devices, the second position turns on powers the ignition and fuel systems, and the third turns 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 make sure it's legal. If the key is valid it will send the signal to the steering lock of your car and other computer modules to unlock your door. This is a great way for you 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 trouble. However, as much as we appreciate the convenience of our ignition switches, they could also cause issues on the road. When the ignition switch is malfunctioning, it may not be sending enough power to your car's critical electrical components, or it may have a problem with the connections that prevent your vehicle from starting. One of the most common indications of a damaged ignition switch is that it can't start your vehicle in any way. This is usually due the issue that the switch does not move to the “on” position, which powers on fuel or ignition systems. Another sign of a defective ignition switch is that the key does not move into the desired position, from which you can look for warning lights on the dashboard. These lights typically turn on when you press the ignition key. They then dim when your car is started. In some instances the dashboard lights remain dark even after you turn the key on. The reason is that the ignition switch will briefly provide power to the ignition and fuel pump systems if you turn the key to 'on however it will stop power when the key is removed from the 'on' position. You should contact an auto mechanic if you encounter any of these issues. A professional can determine if the switch is defective or not and also what steps to take to correct it. Steering wheel lock Mercedes ignition keys are designed with an anti-theft feature in mind. If someone attempts to steal your car and shifts the steering wheel with no being present, it will trigger the steering lock and stop the vehicle moving. This security measure is designed to guard your family and you from harm during a robbery. It also prevents thieves from taking your car. However, there are times when the lock won't unlock or is locked. This could be due to a variety of reasons, including damaged or worn out ignition tumblers. You can get a replacement key or fix it yourself. The first step for fixing this is to remove the ignition lock assembly. To do this, take off the plastic cover that covers the ignition and take out the fasteners. After you've removed your ignition lock assembly, you can replace it with another one. It is important to ensure that the new component is exactly the same as your car's parts. This will help ensure that the locking mechanism will work well when you replace it. You should also ensure that the new ignition lock is properly installed and that all of the clips are engaged correctly. This is especially important with older models. Wear and wear and tear on the tumblers may also cause your mercedes ignition keys to be stuck in their locked position. This is not a rare problem that needs to be rectified before the cylinder is completely stuck or snaps off. To unlock the mercedes ignition key stuck in the locked position, apply a small amount of pressure to the key while simultaneously turning it. To avoid damaging the lock mechanism or key you must take it slow and gentle. This is a simple process that should solve your problem in a matter of minutes. It's also a great method to ensure that your Mercedes ignition is secure and ready to go whenever you need it. If you require further assistance, contact Mercedes-Benz of Centerville near Kettering for further information or to schedule an appointment. Tumbler When you insert an ignition key into the ignition of your Mercedes it transmits precise information to the electronic ignition switch to start the engine. The Mercedes will turn when the infrared data is in sync with the ECU. This is the start of the engine and powers all the systems within it. If your car won't start it could be time to inspect the ignition lock tumbler. Sometimes, the tumbler will wear out and need to be replaced. Sometimes, the tumbler will not be able the electronic ignition button. try these out that the Mercedes ignition lock tumbler could be malfunctioning is when it fails to move in the right direction. This can be frustrating since you might have to battle the lock for a long time before the car can turn. Another sign that an ignition lock tumbler not working properly is that it could block or completely block the key when it's inserted into the lock. If this happens it's crucial to take your vehicle to a local Mercedes specialist to have them examine and service the ignition lock tumbler. Other possibilities for a Mercedes Benz ignition lock tumbler that won't turn is a bent key or a worn out key. If your key's bent end is causing it not to turn and is causing it to not turn, you can flatten it using a hammer to make it straight. Use an easy-headed, soft hammer and tap it carefully. You may be able to remove your key from the ignition lock by gently jiggling it. This can be tricky so be careful not to harm your key when trying to untangle it. If you have a broken or missing Mercedes ignition lock tumbler, you can order an original keyed replacement from your local Mercedes-Benz dealer. These parts are specially designed to fit the original locks of your vehicle, so you can rest confident that they'll have the ability to work with the system in your Mercedes.