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How to Fix a Mercedes Ignition Key That Won't Work An ignition key that does not function is among the most frustrating things you have to deal with when driving a Mercedes. It could be a sign of other issuestoo. There are three main reasons for Mercedes Benz ignition key problems. They are bent keys, loose cables, and malfunctioning electronic switches. Loose Cable Untight cables can cause your Mercedes ignition key to get stuck. This issue can be solved by a simple tightening of the cable connected to the shifter. The bolt on the shifter end of this cable should be tightened in a way that there isn't any slack in the wire. This is crucially important if you drive your Mercedes with the gear set to park, since this causes the shifter to move the cable by a sixteenth of an inch or so, which may cause your key to get caught. This loose cable could also cause your key to be tied to the steering wheel lock. This is a vital security feature of your Mercedes, as it prevents criminals from attempting to push the car away or using the steering wheel for navigation the vehicle without a key. Another issue that could arise with an ignition key for a Mercedes is that the electronic switch might be worn out and require to be replaced. This is an easy repair, but it is important to ensure that the new switch matches the one that is currently in use. A malfunctioning switch can cause your vehicle to stall with all lights going out, and the radio not functioning when the key is press. mercedes replacement car keys to bring your mercedes in for repair or buy the new OEM Mercedes ignition switch. Some Mercedes ignition keys can be stuck in place even when your car is in park. This is a common issue with older Mercedes models. It's usually caused due to a loose cable linking the locking mechanism in the ignition assembly to the shifter. If you have a key locked in its place, try a jump start to determine if this fixes the issue. This is a great method to test the battery as well as an easy and cost-effective solution. There are many reasons your Mercedes ignition keys might not turn. The most frequent reason is the battery is damaged or dead. This issue is common to all makes and models of vehicles. You should consult an automotive mechanic to determine the root cause. Electronic Switch The ignition switch is a crucial electronic component in a vehicle. It comes in a variety of positions, which can power various systems as the key is turned. The first position turns on electrical components, the second powers the ignition and fuel systems, and the final cranks the engine. Each ignition key from Mercedes is unique. When you insert the key into your vehicle's ignition the electronic switch checks that it's genuine. If the key is valid, it will send an alert to your car's steering lock and other computer modules to unlock your door. This is a great way to allow you to start your vehicle quickly and easilyeven if you lose your keys, you'll still access the car without difficulty. But, as much as we like the convenience of our ignition switches, they also cause problems while driving. If the ignition switch is faulty it might not be supplying enough power to the vital electrical components, or it could have missing connections that could keep you from starting your car. One of the most frequent signs of a malfunctioning ignition switch is that it will not start your car in any way. This is usually due to the switch isn't turning to the “on” positionwhich is what powers the fuel and ignition systems. A defective ignition switch could also cause the key to not turn into the first position. This is why you should check for warning lights on the dashboard. Usually, these lights light up when you hit the ignition button. They then dim once your vehicle is running. In other instances the dashboard lights will remain dark when you turn your key to the 'on' position. The reason for this is because the ignition switch will temporarily provide electricity to the fuel pump and ignition systems when you switch the key to “on however it will shut off power as soon as the key is removed from the 'on' position. You should contact an auto mechanic if you experience any of these problems. A specialist can tell you whether the switch is defective and what steps you should take in order to fix it. Steering wheel lock Mercedes ignition keys have been designed with an anti-theft feature in mind. If someone breaks into your car and manages move the steering wheel while you're away, it will activate the lock on the steering wheel to stop the car from moving. This safety measure protects you and your family members from being victim to the perpetrator of a crime. It also prevents thieves from stealing your vehicle. Sometimes the lock might not open or be locked in an unlocked position. It can happen for many reasons, including damaged or worn out ignition tumblers. You can either purchase a replacement key or repair it yourself. The first step in fixing this is removing the ignition lock assembly. To do this, remove the plastic cover that covers the ignition, and remove the fasteners. Once you have removed the ignition lock assembly, it is possible to replace it with a brand new one. It is essential that the new part matches your car's parts. This will ensure that the locking mechanism operates perfectly when it's installed. Also, make sure that the new ignition lock is properly installed and that all clips are engaged. This is particularly crucial for older models. Another issue that can cause your mercedes ignition key to be stuck in the locked position is wear and tear on the tumblers. This is not a rare issue that should be fixed before the cylinder is completely stuck or snaps off. To unlock a mercedes ignition lock which is locked in its locked position, apply a small pressure to the key while simultaneously turning the key. It is recommended to do this slowly and gently so as to not damage the lock mechanism or the key. This is a quick and easy way to solve your issue. This is a great way to ensure your Mercedes ignition is in good condition and secure to use it at any time. If you need additional help, contact Mercedes-Benz of Centerville near Kettering for more information or to schedule an appointment. Tumbler When you insert an ignition key into the ignition of your Mercedes it transmits information to the electronic ignition switch to start the engine. If the infrared information matches with the data stored in the ECU the Mercedes will begin to turn. This is the start of the engine and powers the many components inside it. If your car won't turn on It could be time to inspect the ignition lock tumbler. In some cases the tumbler may get worn out and need to be replaced. Other times, it will be unable to engage the electronic ignition switch. One of the most common signs that the Mercedes ignition lock tumbler is defective is that it isn't turning to the correct position. When this happens, it could be frustrating as you could have to fight with the lock for a long period of time before you are able to start the car. A malfunctioning ignition lock tumbler could also cause the key to become jammed or become completely blocked when it is inserted into the lock. It is important to take your car to your Mercedes specialist if this happens. They can then examine and repair the ignition switch's tumbler. A bent or worn-out key are also possible reasons behind why your Mercedes Benz ignition lock tumbler cannot turn. If the bent end of your key is causing it to not turn then you can flatten it using a hammer in order to get it back straight. Be sure to employ a hammer that is soft and that you tap carefully. You may be able to remove your key from the ignition lock by gently jiggling the cylinder. This can be tricky so be careful not to harm your key when trying to untangle it. You can purchase a new keyed Mercedes-Benz ignition lock tumbler if it's damaged or is missing. These parts are specifically made to fit your Mercedes original locks, and can be used with your Mercedes system.