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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 the ignition key that doesn't work. It could also be a sign that you have other problems. There are three main reasons Mercedes Benz ignition keys problems. This includes a bent key or a cable that is loose, and an electronic switch that's not working. Loose Cable The loose cables can cause the ignition key of your Mercedes to get stuck. This issue can be solved by a simple tightening of the cable on the shifter. Make sure the nut at the end of the cable that connects to the shifter is tightly tucked so that the wire isn't sagging. This is particularly crucial in the event that you drive your Mercedes with the gears set in park position, as this will cause the shifter to move the cable by about a 16th of an inch or so, which may cause your key to become stuck. The loose cable may cause the steering wheel lock to become stuck. This is an essential security feature of your Mercedes since it can stop potential thieves from pushing the car away or using the steering wheel for navigation the vehicle without having a key. Another issue that can arise with a mercedes ignition key is that the electronic switch could get worn out and need to be replaced. This is a simple fix that can be done quickly, but it is important to ensure that your new switch is in line with the one you have. A defective switch could lead to a variety of issues, including your vehicle becoming stuck and the lights not working, or the radio not working when you turn your key. You can either take your Mercedes in for repair or buy a new OEM Mercedes ignition button. Some mercedes ignition keys can also be locked, even when the 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 of your ignition assembly to the shifter. If you have a lock that is locked in place, you should try a jumpstart and see if this solves the issue. It's a quick and easy method to test your battery. There are a variety of other reasons that your mercedes ignition key could not turn but the most common is the battery being dead. This issue is common to all makes and models of vehicles. You should seek the advice of an automotive mechanic to diagnose the root cause. Electronic Switch The ignition switch is an essential electronic part in a car. As the key is turned, it activates different systems. The first position activates electrical components, the second power on fuel and ignition systems, and the final cranks the engine. Each mercedes ignition keys is unique. When you insert the key into the ignition of your vehicle the electronic switch confirms that it is valid. If it's valid it will send an alert to the steering lock (if your vehicle has one) and other computer components to unlock the door. This is a great way to start your vehicle quickly and easily. Even if you lose your keys you can still be able to get into and out of your vehicle without hassle. But, despite the fact that we enjoy the convenience of our ignition switches they can pose serious dangers for our roads. If your ignition switch is defective, it could not send enough power to your car's critical electrical components , or it could be missing crucial connections that could stop you from starting your car. A defective ignition switch can cause your car to not start at all. Most often, this is because the switch doesn't move to the 'on' position — which powers on ignition and fuel systems. Another sign of a faulty ignition switch is that the key does not move into the desired position, where you can look for warning lights on the dashboard. Usually, these lights come up when you press the ignition button , and they dim when your vehicle is running. In certain instances, the dashboard lights will remain dark even after you turn the key to 'on'. This is because the ignition switch temporarily supplies power to the fuel pumpand ignition systems, and ignition if the key has been switched to 'on'. However it will shut off power after the key is removed. If you're experiencing any of these problems, the best option is to seek out a diagnosis from an auto mechanic. A specialist can tell you if the switch is defective and what steps you should take in order to repair it. Locking the steering wheel Mercedes ignition keys come with an anti-theft feature. If someone steals your vehicle and manages to move the steering wheel when you're away it will activate the lock on the steering wheel and prevent the vehicle from moving. This measure of security protects you and your family from being the victim of an act of crime. It also stops thieves from stealing your car. Sometimes the lock might not be able to unlock or be locked in an unlocked position. This can be due to many reasons, such as broken or worn out ignition tumblers. You can either buy a new key or repair the problem yourself. To fix this issue, you'll need to take off the ignition lock assembly. To do this, take off 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 new one. It is essential to make sure the new part is exactly the same as the components of your car. This will ensure that the locking mechanism is working well when it's reinstalled. Also, make sure that the new ignition lock has been properly installed and that all clips are properly engaged. This is especially crucial for older models. Wear and wear and tear on the tumblers could cause your Mercedes ignition keys to get stuck in their locked position. This is a common issue which needs to be taken care of before the cylinder becomes stuck or snaps off. To unlock mercedes key repair which is stuck in its locked position, apply a small pressure to the key while simultaneously turning the key. It is recommended to do this slowly and slowly, so as not to harm the lock mechanism or the key. This is a simple procedure which will resolve your issue in no time. This is a great method to ensure that the Mercedes ignition is functioning and secure so you can use it at any time. If you require further assistance call Mercedes-Benz of Centerville near Kettering for more information or to schedule an appointment. Tumbler When you insert a key into the ignition of your Mercedes it transmits specific information to the electronic ignition switch to start the engine. As the infrared data corresponds to the data stored in the ECU the Mercedes will begin to turn. This triggers the car's engine and powers the many components inside it. If your car won't start, it may be time to look at the tumbler in your ignition lock. Sometimes the tumbler will just get worn out and require to be replaced. Other times, it will be unable to activate the electronic ignition switch. One of the most frequent indications that the Mercedes ignition lock tumbler is not working properly is that it won't turn to the right position. When this happens, it could be frustrating as you could need to battle with the lock for a long time before you can get the car started. A malfunctioning ignition lock tumbler could also cause the key to become jammed or become completely blocked when it is in the lock. If this occurs it's imperative to take the vehicle to the local Mercedes specialist so that they can examine and service the ignition lock tumbler. Other possibilities for a Mercedes Benz ignition lock tumbler that won't turn include a bent key or a worn-out key. If your key is bent at the end, it's crucial to flatten the bent end using an hammer, and then try to turn it over. Use the hammer with a soft, gentle head and tap it carefully. killer deal can sometimes untangle your key from the ignition lock by gently jiggling it. It can be difficult, so be cautious not to cause damage to your key while trying to untangle it. You can purchase a replacement keyed Mercedes-Benz ignition lock tumbler , if it's damaged or is missing. These parts are specially designed to fit the original locks in your vehicle, so you can rest confident that they'll have the ability to be compatible with the system in your Mercedes.