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How to Fix a Mercedes Ignition Key That Won't Work One of the most difficult issues to face when you own a Mercedes is the ignition key that doesn't work. It could also be a sign of other issues. There are three primary causes for Mercedes Benz ignition key problems. This includes a bent key or cable that is not in good condition, and an electronic switch that is not working properly. Loose Cable Loose cables could cause your mercedes ignition key to get stuck in place. This problem can be solved by simply tightening the cable around the shifter. The nut on the shifter side of this cable should be tightly tightened so that there is no slack in the wire. This is particularly important when your Mercedes is in park position. The shifter can move the cable around a sixteenth inch which could cause your key to be stuck. The loose cable can cause the steering wheel lock to become stuck. This is an essential safety feature of your mercedes, as it prevents criminals from attempting to push the vehicle away or using the steering wheel to drive the vehicle without the use of a key. A mercedes ignition switch can be damaged and will need to be replaced. This is a straightforward fix that can be completed quickly however it is essential to ensure that the new switch is compatible with the one you have. A damaged switch can cause a variety of issues, like your vehicle stalling and all the lights going out, or the radio not working when you turn your key. It is recommended that you bring your mercedes in to have this repaired, or simply purchase a new OEM Mercedes ignition switch. Certain ignition keys of Mercedes can also become locked even when the vehicle is in park. This is a common problem in older Mercedes models and is usually caused by loose cables that connect the locking mechanism of your ignition assembly to the shifter. Jump start can be used to check if your key is still in its place. This is a quick and simple method to test your battery. There are many other reasons that your mercedes ignition key might not turn however the most frequent is a dead battery. This is a typical issue for all kinds of brands and models of cars, and you should consult an mechanic for the exact cause of your issue. Electronic Switch The ignition switch is an essential electronic part of a vehicle. As the key is turned it triggers different systems. The first position is where you can activate electric accessories, while the second turns on the ignition and fuel systems. The third position cranks the engine. The ignition key of the Mercedes is unique to each car and, when you insert it into the ignition system the electronic switch tests the key to make sure it's valid. If it's valid it sends signals to the steering lock (if your car has one) as well as other computer modules to unlock the door. This is a great method to start your vehicle quickly and easily. Even if you misplace the keys, you'll be able be able to enter and exit your car with no difficulty. However, even though we enjoy the convenience of our ignition switches, they can cause serious problems for drivers. If the ignition switch is defective the switch may not be supplying enough power to the vital electrical components, or it may have missing connections that may prevent your vehicle from starting. A faulty 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 activates fuel or ignition systems. A malfunctioning ignition switch could also cause the key to not be able to go into the first position. This is where you can check for warning lights on your dashboard. The lights are usually activated when you press the ignition button. They then dim once your car starts. In some instances, the dashboard lights will remain dark even after turning the key to turn it on. The reason for this is because the ignition switch may temporarily provide power to the fuel pump and ignition systems if you turn the key to 'on and then it will stop power when the key is removed from the 'on' position. If you're experiencing any of these issues, the best choice is to seek out a diagnosis from an auto mechanic. A professional will be able to tell you whether the switch is defective or not, and the steps you can take to fix it. Steering Wheel Lock Mercedes ignition keys have an anti-theft feature. If someone tries to gain entry into your vehicle and shifts the steering wheel, without being present, it will activate the steering lock and stop the car from moving. This measure of security protects your family and you from being victim to criminals. It also prevents thieves from driving away with your car. Sometimes the lock may not unlock or remain locked in an unlocked position. This can be due to many reasons, including damaged or worn out ignition tumblers. You can purchase a replacement key or repair it yourself. To fix this, you will need to remove the ignition lock assembly. To do this, take off the plastic cover that covers the ignition, and take out the fasteners. Once you've removed your ignition lock assembly, you are able to replace it with a new one. It is essential to ensure that the new part is a perfect match to the components of your car. mercedes keys replacement will ensure that the locking mechanism operates perfectly when it's installed. You should also ensure that the new ignition lock is properly installed and that all clips are correctly engaged. This is especially crucial for older models. Another reason that could cause your ignition key for mercedes to become stuck in the locked position is wear and tear on the tumblers. This is a frequent issue that needs to be dealt with before the cylinder gets stuck or snaps off. To unlock an ignition lock from a Mercedes that is locked in its position, apply a small pressure to the key while simultaneously turning the key. To avoid damaging the lock mechanism or the key it is best to do this slowly and gently. This is a simple and simple solution to your problem. It's also a great way to ensure your mercedes ignition is safe and ready to drive at any time you need it. If you require assistance, contact Mercedes-Benz of Centerville near Kettering for more details or to schedule an appointment. Tumbler When keys are inserted into the ignition of your Mercedes it will send detailed infrared data to the electronic ignition switch to start the engine. The Mercedes will turn when the infrared data is in sync with the ECU. This will start the engine of the Mercedes and will power all its systems. If your car won't turn on, it might be an opportunity to look at the ignition lock tumbler. In some instances the tumbler may get worn out and will require replacement. Sometimes, the tumbler will not be able engage the electronic ignition button. One of the main indications that the Mercedes ignition lock tumbler is defective is that it won't turn into the proper position. This can be frustrating as you might have to fight the lock for a long time before your car is able to turn. A malfunctioning ignition lock's tumbler can also cause the key to become jammed or become completely blocked when it is put into the lock. If this occurs it's crucial to take the vehicle to the local Mercedes specialist so that they can look over and service the ignition lock tumbler. A bent key or a worn-out key are also possible the reason why your Mercedes Benz ignition lock tumbler won't turn. If the bent part of your key causes it to not turn the way you want, you can smooth it using a hammer in order to get it back straight. Make sure you make use of a soft-headed hammer, and tap it very carefully. You may be able to remove your key from the ignition lock by gently jiggling the cylinder. This isn't easy, so make sure you don't end up damaging your key in trying to unravel 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 specifically designed to fit the original locks of your vehicle so you can be assured that they'll be able to work with the system in your Mercedes.