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How to Fix a Mercedes Ignition Key That Won't Work A key for ignition that doesn't work is among the most frustrating things you'll encounter when driving the Mercedes. It could be a sign of other issues. There are three main causes for Mercedes Benz ignition key problems. These are a bent key, loose cables, and an electronic switch that is not working properly. Loose Cable Untight cables could cause your Mercedes ignition key to become stuck. This issue can be fixed by tightening the cable around the shifter. The nut on the shifter side of the cable has to be tightened up to ensure there is no slack in the wire. This is particularly important for those who drive their Mercedes with the gears set to park, as this could cause the shifter to move the cable by one-sixteenth of an inch or so, which may cause your key to get caught. The loose cable could cause the steering wheel lock to become stuck. This is a critical security feature for your Mercedes. It stops potential thieves from driving the car away or using the steering wheel for navigation it without the use of a key. A mercedes ignition switch could also wear out and need to be replaced. It's an easy repair, but you should 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 use your key. It is recommended that you bring your mercedes in for this repair, or simply purchase a new OEM Mercedes ignition switch. Certain ignition keys of Mercedes can also be locked even when the vehicle is in park. This is a common problem in older Mercedes models and is typically caused by loose cables that connect the locking mechanism of your ignition assembly to the shifter. If you have a key that's locked in place, you should attempt a jump start and try to resolve the problem. This is a great way to test the battery, and it's a simple and inexpensive solution. There are many reasons why your mercedes ignition keys might not work. The most frequent reason is an unbalanced or dead battery. This problem is common for all makes and models of automobiles. You should consult with an automotive mechanic to determine the root reason. Electronic Switch The ignition switch is an essential electronic part in a car. When try these out is turned it triggers various systems. The first one is for activating electric accessories, while second turns on the ignition and fuel systems. The third turns the engine. Each ignition key from Mercedes is unique. When you insert the key into your vehicle's ignition the electronic switch checks the authenticity of the key. If it's valid the key sends an indication to the steering lock (if your vehicle has one) and other computer modules to unlock the door. This is a great method to get you started in your vehicle quickly and easilyand even if lose your keys, you can still get in and out without difficulty. However, even though we like the convenience of our ignition switches, they can also cause problems on the road. If your ignition switch is malfunctioning it might not be able to provide enough power to the car's crucial electrical components or be missing crucial connections that may prevent you from starting your car. A faulty ignition switch can cause your car to not start at all. It's usually because the switch isn't in the “on” position- which powers on fuel and ignition systems. A malfunctioning ignition switch may cause the key to not move into the first position. This is where you should check for warning lights on the dashboard. These lights typically turn on when you press the ignition key. They will dim when your car starts. In other cases the dashboard lights stay dark after you turn your key to the 'on position. The reason for this is that the ignition switch will momentarily provide power to the fuel pump and ignition systems when you switch the key to 'on however it will stop power as soon as the key is removed from the 'on' position. It is recommended to contact an auto mechanic if you have any of these issues. A qualified mechanic can tell whether the switch is malfunctioning and the steps to do to fix it. Locking the Steering Wheel Mercedes ignition keys are made with an anti-theft feature in mind. If someone steals your car and manages move the steering wheel while you're not present, it will activate the lock on the steering wheel to keep the vehicle from moving. This security measure is designed to protect your family and you from being injured during a crime. It also stops thieves from stealing your vehicle. Sometimes the lock might not be able to unlock or remain locked in an unlocked position. It could be due to several reasons, including broken or worn out ignition tumblers. You can either purchase a replacement key or repair it yourself. To fix this, you'll need to take off the ignition lock assembly. To do this, remove 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 important that the new component matches the parts of your vehicle. This will help ensure that the locking mechanism functions properly when you reinstall it. Also, make sure that the new ignition lock is properly installed and that all clips are properly engaged. This is particularly important for older models. Wear and wear and tear on the tumblers may cause your Mercedes ignition keys to become stuck in their locked position. This is a typical issue that should be addressed prior to the cylinder getting stuck or snaps off. To unlock a mercedes ignition key that's stuck in the locked position, try applying a little pressure to the key while turning it. To avoid damaging the lock mechanism or key, you should take it slow and gentle. It's a straightforward procedure that can solve your issue in a matter of minutes. This is a great method to ensure that your Mercedes ignition is in good condition and secure to drive it whenever you need. For more information or to set up an appointment, call Mercedes-Benz Centerville near Kettering. Tumbler When you insert a key into the ignition of your Mercedes it transmits precise information to the electronic ignition switch that will turn the engine on. The Mercedes will rotate when the infrared information is in sync with the ECU. This will start the engine of the Mercedes, and also power the entire system. If your car won't start it's possible that it is an opportunity to look at the ignition lock tumbler. Sometimes, the tumbler will get old and needs to be replaced. Sometimes, the tumbler may not be able engage the electronic ignition button. The most obvious indication that the Mercedes ignition lock tumbler may be defective is when it does not turn in the correct direction. This can be frustrating as you may have to battle the lock for a while before your car is able to turn. A malfunctioning ignition tumbler could also cause the key to block or even become completely blocked when it is put into the lock. It's crucial to take your vehicle to your Mercedes specialist in the event of this. They can then look at and repair the ignition switch tumbler. A bent key or a worn-out key might be reasons for why your Mercedes Benz ignition lock tumbler won't turn. If your key is bent at the end, you should flatten the bent end using the hammer and attempt to turn it over. Make sure to use a soft-headed hammer and that you tap very carefully. It is possible to untangle your key from the ignition lock by gently jiggling the cylinder. However, this is difficult and you should be cautious not to break your key while trying to untangle it. You can buy a replacement keyed Mercedes-Benz ignition lock tumbler in case it's damaged or not working. These parts are specifically made to fit your Mercedes' original locks, which means they will work with your Mercedes system.