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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 does not work. It could be a sign of other issuesas well. There are three main reasons Mercedes Benz ignition keys problems. The most common causes are a bent key cable, loose cables, and an electronic switch that is not working properly. Loose Cable Loose cables could cause your mercedes ignition key to become stuck in place. This issue can be resolved by simply tightening the cable around the shifter. Check that the nut at the end of the cable that connects to the shifter is tightened to ensure that the cable doesn't stretch. This is especially crucial if your Mercedes is in park position. The shifter can move the cable approximately 16 inches and could cause the key to become stuck. The loose cable could cause the steering wheel lock to get stuck. This is an essential safety feature of your mercedes since it can stop potential thieves from pushing the car away or using the steering wheel to steer the vehicle without having a key. A mercedes ignition switch can be damaged and will need to be replaced. This is a simple repair which can be accomplished quickly however it is essential to ensure that your new switch is in line with the one you currently have. A defective switch could cause your car to stop the engine, all lights to go out and the radio not working when the key is pressing. You can either take your Mercedes in for repair or buy a new OEM Mercedes ignition button. Certain Mercedes ignition keys may be stuck in place even when the car is in park. This is a problem that is common with older Mercedes models. It is usually caused by a loose cable that connects the locking mechanism of the ignition assembly to the shifter. Jump start is a great way to check if your key is in good condition. It's a quick and easy method to test the battery. There are many reasons your Mercedes ignition keys might not work. The most common reason is the battery is damaged or dead. This issue is prevalent for all makes and models of automobiles. You should consult an automotive mechanic to identify the root reason. Electronic Switch The ignition switch is an essential electronic device in a car. It comes in a variety of positions, which provide power to various systems when the key is turned. The first position turns on electrical components, the second activates the ignition and fuel systems, while the third cranks the engine. The ignition key of the Mercedes is unique to each vehicle and when you insert it into your vehicle's ignition system the electronic switch examines the key to make sure it's genuine. If the key is valid, it will send an alert to the steering lock of your car and other computer modules to unlock your door. This is a great way to start your car quickly and effortlessly- and even if you have lost your keys, you can still access the car without any trouble. But, despite the fact that we enjoy the convenience of our ignition switches they can be a source of serious trouble for our roads. If your ignition switch is malfunctioning it may not be able to send enough power to your vehicle's vital electrical components or could be missing vital connections that can prevent you from starting your car. One of the most common symptoms of a faulty ignition switch is that it can't start your vehicle at all. The Keylab is usually due the fact that the switch doesn't switch to the “on” position, which is the one that powers on ignition or fuel systems. Another indication of a damaged ignition switch is that the key does not move into the desired position, where you could look for warning lights on the dashboard. These lights typically turn on when you press the ignition key. They then dim once your car is started. In other instances the dashboard lights stay dark once you have moved your key to the 'on position. This is due to the fact that the ignition switch will temporarily supply power to the fuel pump, ignition systems, and the like if the key is turned to “on”. However the switch will then shut off power after the key is removed. If you are experiencing any of these issues, your best bet is to seek out a diagnosis from an auto mechanic. A specialist can tell you that the switch is not working properly and what steps you should take in order to fix it. Locking the steering wheel Mercedes ignition keys come with an anti-theft feature. If someone tries to steal your car and shifts the steering wheel, without being present, it will activate the steering lock and stop the car from moving. This security measure protects you and your family members from being the victim of a crime. It also stops thieves from taking your car. Sometimes the lock might not open or remain locked in an unlocked position. This could be due to a variety of reasons, such as worn or damaged ignition tumblers. You can either buy an entirely new key or fix the issue yourself. To fix this, you'll have to remove the ignition lock assembly. To do this, simply remove the plastic cover that covers the ignition and remove the fasteners. After you have removed the ignition lock assembly you can replace it with a new one. It is essential to ensure that the new part is compatible with the car's components. This will ensure that the locking mechanism operates correctly when it is installed. You should also ensure that the new ignition lock is correctly installed and that all clips are properly engaged. This is particularly important for older models. Wear and tear on the tumblers can cause your Mercedes ignition keys to get stuck in their locked position. This is not a typical issue and should be addressed before the cylinder becomes completely stuck or is snapped off. To unlock the mercedes ignition key stuck in the locked position, you should try applying a bit of pressure to the key while turning it. To avoid damaging the lock mechanism or the key it is recommended to do this slowly and gently. This is an easy and simple solution to your problem. This is a great method to ensure that the Mercedes ignition is functioning and secure to drive it whenever you need. If you need additional help get in touch with Mercedes-Benz of Centerville near Kettering for further information or to schedule an appointment. Tumbler When keys are inserted into the ignition of your Mercedes it transmits precise infrared data to the electronic ignition switch to start the engine. The Mercedes will rotate when the infrared information matches the ECU. This will start the car's engine and powers the many components inside it. If your car isn't starting it's possible that it is time to examine the ignition lock tumbler. In some cases, the tumbler will simply get worn out and require replacement. In other cases, it could be unable to engage the electronic ignition switch. The most obvious indication that the Mercedes ignition lock tumbler might be damaged is when it doesn't turn in the right direction. This can be frustrating as you might be fighting the lock for a long time before your car is able to turn. A malfunctioning ignition lock's tumbler can cause the key to become jammed or become completely blocked when it is placed into the lock. If this occurs, it's important to bring your vehicle to a local Mercedes specialist to have them examine and repair the ignition lock tumbler. Other possibilities for the Mercedes Benz ignition lock tumbler that isn't turning include bent keys or a worn out key. If your key is bent at the end, it's important to flatten the ends with the hammer before trying to turn it over. Use a soft-headed, gentle hammer and tap carefully. You can sometimes remove your key from the ignition lock cylinder by gently jiggling it. This can be tricky so make sure you don't cause damage to your key while trying to loosen it. You can get a replacement keyed Mercedes-Benz ignition lock tumbler , if it's damaged or has gone missing. These parts are made to fit your Mercedes original locks, which means they will work with your Mercedes' system.